Concrete Contractor April/May 2017

A Concrete Way to Say Thanks

24 April/May 2017

Now available online and on your iPad!

A Concrete Polishing System Designed to Deliver Highend Architectural Results 49

Jointless Floors: Fact or Fiction?

16

Tunnel Forms Build A CASTLE 38 www.forconstructionpros.com/concrete CONC0417_01_CoverFinal.indd 1

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April/May 2017 | Issue 3, Volume 17

WHAT’S INSIDE Cover Photo Credit: CTS Cement

Departments 4 Editor’s Letter 6 Legal Matters 8 Challenging the System 12 New Products 46 Foundation Q&A 58 The Last Placement

What’s Online

Cover Story 16 Jointless Floors: A High-Performance Solution The trend toward jointless floors continues to grow anywhere fewer joints, fewer cracks, less maintenance and exceptional durability are essential.

Read these online exclusive articles at www.ForConstructionPros.com/ concrete.

Concrete Tips for Flooring Success Mistakes to avoid when preparing concrete floors for a new coating..

Features

Search: 12322546

20 The Van Wyks Concrete Construction Company A family owned company moves to the next generation.

24 A Concrete Way To Say Thanks Ohio contractors join forces to thank military veterans through the non-profit organization, Patios for Patriots.

38 Tunnel Forms Build A Castle Using modern construction techniques to build a re-creation of a 19th century structure, a Michigan pumper has put his entire fleet to work on The Grand Castle apartment project.

42 Pumps and Placing Equipment Product Round-up A compilation of pumps and placing equipment.

Competitor Collaboration Yields Award-Winning Results Jessica Ledger-Kalen, owner of Royale Concrete and Mike Denny, owner of Artistic Concrete Surfaces (ACS), joined forces when faced with an outstanding, yet very challenging, opportunity that exceeded either of their individual capacities.

Search: 12322577

54 Dust Extractors Product Round-up A compilation of dust extractor

28 Specification Guides: Screeds A compilation of technical information when choosing your next screed.

49 ULTRAFLOR Concrete Polishing System Designed to Deliver High-end Architectural Results Southern Californian concrete polishing contractor builds business on green solution for entertainment retail and commercial enterprises.

products.

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EDITOR’S LETTER

OSHA Delays Silica Standard Enforcement

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he U.S. Department of Labor’s Occupational Safety and Health Administration has announced a delay in enforcement of the crystalline silica standard that applies to the construction industry to conduct additional outreach and provide educational materials and guidance for employers.

According to a press release, the agency has determined that additional guidance is necessary due to the unique nature of the requirements in the construction standard.

Originally scheduled to begin June 23, 2017, enforcement will now begin Sept. 23, 2017.

OSHA expects employers in the construction industry to continue to take steps either to come into compliance with the new permissible exposure limit, or to implement specific dust controls for certain operations as provided in Table 1 of the standard.

Construction employers should also continue to prepare to implement the standard’s other requirements, including exposure assessment, medical surveillance and employee training.

Ryan Olson, Publisher/ Editorial Director ROlson@ ACBusinessMedia.com (800) 538-5544

Spring Convention in Detroit, Mich.

The ACI meetings offer me the opportunity to sit in committee meetings to listen and learn about what a specific committee is working on.

I sat in ACI 310-0J Polished Finishes, a sub-committee of ACI 310 Decorative Concrete. This sub-committee has been tasked with creating a specification for polished concrete.

The committee started creating the specification last year and has since made some significant progress.

I’m pleased to report a rough draft document has been created, that when completed and approved, will help concrete polishers perform the work in a consistent manner.

Stay tuned as there is still much work that needs to be done. We will continue to follow the progress of this much needed specification.

A POLISHED CONCRETE SPECIFICATION IS COMING Last month I attended the ACI Facebook.com/ ConcreteContractor

Advisory Board

Follow us @ Concreteinsider

Kim Basham KB Engineering Cheyenne, Wyo.

Jim Cuviello Cuviello Concrete Polished|Stained|Crafted Stevensville, Md.

Jim Baty Concrete Foundations Association Mt. Vernon, Iowa

Chris Klemaske T.B. Penick & Sons, Inc. San Diego, Calif.

Search: Concrete Polishing

Dennis Purinton Purinton Builders, Inc. East Granby, Conn.

Joe Reardon Diamatic Orlando, Fla.

4 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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Published by AC Business Media Inc.

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www.ForConstructionPros.com/Concrete PUBLICATION STAFF

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Published and copyrighted 2017 by AC Business Media Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage or retrieval system, without written permission from the publisher.

CONCRETE CONTRACTOR (USPS 021-799, ISSN 1935-1887 (print); ISSN 2471-2302 (online) is published 7 times a year: January/February, March, April/May, June/July, August/September, October/November and December by AC Business Media Inc., 201 N. Main Street, Fort Atkinson, WI 53538. Printed in the U.S.A. Periodicals postage paid at Fort Atkinson, WI, and additional entry offices. POSTMASTER: Send address changes to Concrete Contractor, PO Box 3605 Northbrook, IL 60065-3605 April/May 2017, Issue 3, Volume 17 One year subscription to nonqualified individuals: U.S. 1 year: $35, 2 years: $70. Canada & Mexico 1 year: $60, 2 years: $105. All other countries 1 year: $85, 2 years: $160 (payable in U.S. funds drawn on U.S. banks). Single copies available (prepaid only) $10.00 each (U.S., Canada & Mexico), $15.00 each (International).

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MORE THAN A “Z” SEEING IS BELIEVING

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David C. Whitlock has over 25 year’s experience in business immigration, compliance, employment counseling and training. He is the founding attorney of Whitlock Law LLC and can be reached at (404) 626-7011 or at davidcwhitlock@gmail.com.

LEGAL MATTERS

Your (New) Government At Work . . .

This article summarizes some recent federal developments affecting concrete contractors. Also, some things to watch out for at the state and local level.

A

s expected, President Trump is steadily unwinding some of the more onerous actions of the prior administration. For example, the President signed legislation eliminating OSHA’s rule “Clarification of Employer’s Continuing Obligation to Make and Maintain Accurate Records of Each Recordable Injury and Illness.” This rule effectively created a five year statute of limitations for an employer’s reporting duty. OSHA finalized this rule last December and it became effective in January 2017.

OSHA passed this rule in response to a 2012 decision by the US Court of Appeals for the District of Columbia which held that OSHA could not issue citations to employers for failing to record an injury or illness beyond the sixmonth statute of limitations set out in the Occupational Safety and Health Act. The repeal of this regulation will substantially ease the record-keeping burden on concrete contractors.

border, but will assume substantial interior enforcement duties. This will undoubtedly result in more I-9 inspections in the near future. Some estimate that the number of worksite inspections will triple within a year or two. This suggests that concrete contractors need to be especially diligent about I-9 compliance in their hiring process.

IMMIGRATION

For federal contractors the “blacklisting” Executive Order has been repealed. This order required contractors bidding on federal work to disclose all prior violations of labor and employment laws as part of the bidding process. In theory, the federal agents controlling the bids were to deny contracts to contractors guilty of prior federal and state law violations.

Although President Trump’s revised travel ban is now the subject of a preliminary injunction, other aspects of his renewed focus on immigration are thriving. For example, his budget proposal anticipates hiring as many as 10,000 new immigration and border patrol agents. It is anticipated that those agents will not all be deployed at the

AFFORDABLE CARE ACT The Affordable Care Act survived initial efforts to repeal it. Despite what some critics are claiming, repeal efforts are not dead. House Speaker Paul Ryan is cautiously optimistic about the prospects for replacing Obama care. It is important to realize that it took nearly 18 months to enact the ACA, so it is hardly surprising that it could be replaced in less than 60 days.

It is clear that the Trump administration does not intend to penalize employers or individuals for failing to comply with ACA mandates.

Concrete contractors should stay tuned for future developments.

FEDERAL CONTRACTORS

Now, contractors do not have to disclose prior violations and they will not lose bids because of mere allegations of violations.

MARIJUANA LAWS White House press secretary Sean Spicer has indicated that it is likely that federal law enforcement may be more strict about enforcement of marijuana laws. Attorney General Jeff Sessions has called for a federal review of marijuana enforcement policy. Neither Sessions nor President Trump favors recreational use of marijuana. At present, it is unclear how federal law enforcement will address this issue in the future, and it is possible that the Trump administration will conclude that recreational use of marijuana is a state level issue.

STATE/LOCAL ISSUES There are a number of issues that concrete contractors should be attuned to at the state and local level. These include more widespread increases in minimum wage requirements as it becomes more clear that there is unlikely to be a federally mandated increase.

Similarly, states may increase the minimum salary for overtime exemption.

Other future issues include regulation of paid time off, “ban the box,” pay equity for females, LGBTQ protections, and more pro-marijuana legislation.

Contractors, stay tuned.

6 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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CHALLENGING THE SYSTEM

A Tolerance Compatibility

SUCCESS

ASCC, ACI and AISC anchor bolt placement tolerances are now identical.

T

olerance compatibility between concrete and other building components that interface with it has been a costly problem because of the cost of remedial work and the negative effect on schedule. At the root of the problem are varying dimensional tolerances for concrete members and for concrete and the abutting components—whether anchor bolts or other building components.

TOLERANCE CONFLICTS FOR ANCHOR BOLTS IN 2004 The American Society of Concrete Contractors (ASCC) developed Position Statement No. 14 “Anchor Bolt Tolerances” that was published in ACI’s Concrete International in February 2004.

In that document, ASCC recommended the following anchor bolt location tolerances: • 3/4- and 7/8-in.-diameter bolts: ±1/4 in.

• 1-, 1-1/4-, and 1-1/2-in.-diameter bolts: ±3/8 in.; and • 1-3/4, 2-, and 2-1/2-in.-diameter bolts: ±1/2 in.

At that time, the American Institute for Steel Construction (AISC) had anchor rod (same definition as anchor bolt) tolerances in their AISC 303 “Code of Standard Practice for Steel Buildings and

Bridges”. AISC required that the variation in location of anchor rods from the dimensions shown in the Embedment Drawings shall be as follows: The variation in dimension between the centers of any two Anchor Rods within an Anchor-Rod Group shall be equal to or less than 1/8 in.

The variation in dimension between the centers of adjacent Anchor-Rod Groups shall be equal to or less than 1/4 in.

The variation in elevation of the tops of Anchor Rods shall be equal to or less than plus or minus 1/2 in.

The accumulated variation in dimension between centers of Anchor-Rod Groups along the Column Line through multiple Anchor-Rod Groups shall be equal to or less than 1/4 in. per 100 ft, but not to exceed a total of 1 in.

The variation in dimension from the center of any AnchorRod Group to the Column Line through that group shall be equal to or less than 1/4 in.

A)

B)

C)

D) E)

The American Society of Concrete Contractors (ASCC) developed Position Statement No. 14 “Anchor Bolt Tolerances”.

The American Concrete Institute’s “Specifications for Tolerances for Concrete Construction and Materials (ACI 117-90)” did not include specific tolerances for anchor bolts but contained the following tolerance for

8 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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Ward R. Malisch, PE, PhD, FACI is concrete construction specialist for the American Society of Concrete Contractors. Reach him at wmalisch@ascconline.org.

CHALLENGING THE SYSTEM

embedded items that was deemed to apply to anchor bolts: • Vertical alignment, lateral alignment, and level alignment . . .

1 in.

It was difficult to understand how a bolt could be out of tolerance by one-inch and still fit in the baseplate holes. So the ACI embedded item tolerances for anchor bolts was considered suspect. However, it was also difficult to understand how a bolt could be surveyed and placed to ± 1/16 inch. So the AISC anchor rod tolerances were considered suspect as well.

and contributed to the resulting Summary Report. A task group in ACI Committee 117 began work on a “Guide for Tolerance Compatibility in Concrete Construction” that was published as ACI 117.1R-14 in 2014. It is of note to mention that a member of AISC was a voting member on ACI 117. ACI 117.1R-14 suggested oversizing holes by varying amounts dependent on the anchor bolt diameter, but still didn’t deal with the discrepancy in separate location tolerances published by ACI and AISC. The separate tolerances meant concrete contractors searched

Bruce A. Suprenant, PE, PhD, FACI, is technical director for the American Society of Concrete Contractors. Reach him at bsuprenant@bsuprenant. com.

re-approved in 2015. And the good news is, in 2016, AISC 303 chose to use the original anchor bolt tolerances proposed by ASCC and adopted by ACI 117. Finally, the anchor bolt or rod tolerances are now the same in the key construction industry documents.

THE LESSONS LEARNED • Communication among members of all organizations involved in any way with concrete construction tolerances is needed to start solving mutual problems.

• The solution to these problems takes time—12 years in the case of anchor bolts.

• Because solutions take time, perseverance and patience are needed. Don’t give up.

AND A FINAL WORD The proposed tolerances varied from ± 1/16 inch (AISC) to ± 1 inch (ACI), with ASCC taking the middle ground. This spread in extreme values was too large and resulted in many jobsite problems and disputes.

THE SEARCH FOR A SOLUTION TO THE PROBLEM Bruce Suprenant published an article in Concrete International (January 2005) illustrating the anchor bolt tolerance incompatibility problem. In February 2005, ASCC hosted an Inter-Industry Workshop on Reducing the Cost of Tolerance Incompatibility. Representatives for ASCC, AISC, and ACI attended

Division 3 for their contractual tolerance specification. Division 3 referred to ACI 117. And the steel erectors would look to Division 5 for their contractual specification which would be AISC 303. This caused many general contractors and construction managers to throw up their hands in despair when base plates didn’t fit over installed anchor bolts.

A COOPERATIVE INDUSTRY SOLUTION But the despair eventually changed to excitement. By 2006, ACI 117 had included specific anchor bolt location tolerances and chose to use those proposed by ASCC. These anchor bolt tolerances were

Even now that anchor bolt tolerances are finally consistent within industry groups, out-of-tolerance situations will still occur. Just not as often. Several publications (for instance, “Common Steel Erection Problems and Suggested Solutions”

by James J. Putkey, Steel Tips, December 1993) of AISC give steel erectors advice on handling these situations. Concrete contractors can study these publications to be part of the solution.

Ed. Note: The ASCC documents cited can be viewed at ascconline.org ACI documents cited can be purchased at concrete.org AISC documents cited can be purchased at aisc.org

10 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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NEW PRODUCTS W. R. MEADOWS AIR-SHIELD TMP Liquid Membrane W. R. MEADOWS is now introducing AIR-SHIELD TMP. A single component, vapor permeable, thin film liquid membrane for both new construction and retrofit applications, it is specifically formulated to act as an air and liquid moisture barrier when applied to most common surfaces.

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QUIKRETE Epoxy Concrete Repair

U.S. Saws Ultra-Vac 950 The Ultra-Vac 950 is a powerful, compact vacuum for use with one 5” grinder, 7” grinder, 5” crack chaser/tuckpointer, or 7” cut-vac.

Its compact size makes it perfect for use on a swing stage, balconies, and jobs that require going up and down stairs. One person can easily load this vacuum into any work or utility vehicle. It has a 9.5 gallon dust capacity with a large, polyfelt filter for long use.

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Live Edge Wood Table from Proline Need to add a timeless piece to your design?

Proline’s Live Edge Wood Table can enhance any room whether interior or exterior. Live Edge wood tables are highly sought after. Create an exquisite piece of furniture at a fraction of the cost.

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Minnich 35cc and 50cc Backpack Concrete Vibrators Minnich's 50 cc and 35 cc gas-powered backpack concrete vibrators are designed to maximize operator comfort, mobility and productivity during concrete consolidation.

• Ergonomically designed, fully adjustable harness reduces strain and fatigue • Throttle assembly with combined quick disconnect allows core/casing to be changed out in seconds • Throttle lock lets operators move hands up and down the core/casing while lifting and lowering • Honda mini 4-stroke engine • 35 cc version will have an all-position diaphragm carburetor for operation in any position without stalling • All core/casings and vibrator heads are interchangeable among all Minnich electricand gas-powered motors ForConstructionPros.com/12313408

A rapid-curing, two-part epoxy with non-sag characteristics, QUIKRETE Epoxy Concrete Repair is ideal for vertical and horizontal bonding and repair applications in concrete, brick, stucco and other cementitious materials. The 8.6-ounce cartridges are applied with a standard caulk gun and available for approximately $17 ForConstructionPros. com/12296776

Cobalt Aero Blade from Detroit Industrial Tool Perfect for the professional contractor looking for supreme high quality, fast cutting diamond products for extra hard material such as hard stone and granite, reinforced concrete, rebar, hard roofing tiles, and more.

This powerful blade is laser welded with "Aero” cooling slots/holes, Jumbo 15mm segments, and fortified with superior quality industrial grade synthetic diamonds. The Cobalt Aero Blade is unmatched in its performance when it comes to tenacious precision cuts.

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The Lura Screed System The Lura Screed System is the only roller screed in the world that offer a wet screed shoe attachment to save time and add dollars to your bottom line. This attachment works especially well when you are faced with difficult sloped pours. This attachment can cut the time of placing the concrete in half.

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12 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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NEW PRODUCTS Dayton Superior’s Citrus Cleaner J48 Citrus Cleaner J48 is a heavy duty concrete stripper and degreaser that is used for general cleaning and easy removal of curing compounds or sealers from concrete floors.

No special tools or equipment needed.

Wood One Piece 7 ¼” Cantilevered Step Liner from Butterfield Color This innovative form liner for new concrete pours creates a cantilevered wood grain edge and textured rise with just one liner piece. The Wood One Piece Cantilevered Step Liner is made with a high quality urethane making it highly flexible for simple radius applications, easy to ship and durable enough to be used pour after pour. Several unique attributes make the liners user friendly.

• The liner eliminates the need for complex forming to create a cantilevered step.

• It allows steps to be framed using standard 2 x 6 lumber.

• The liner has a 45-degree angle on the back leaving room to finish the step or slab below making it possible to leave the forms in place until the following day.

• A specially designed corner piece is available for creating cantilevered returns.

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Features: Stripper and degreaser removes contaminants: dirt, tire marks, oil spills, and even curing compounds and high solids sealers.

• Ideal for use in: warehouses, industrial and food processing plants, automotive industry, parking garages, plazas and service stations.

• Apply full strength, scrub and set for 20 minutes… then an easy water clean-up.

• Now featuring a lighter scent.

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Husqvarna DC 200 Drum Cutter The DC 200 is a versatile attachment made for surface profiling rock or concrete, trenching, excavating frozen soil, soft rock excavation in quarries, demolition and dredging. The 56 tungsten carbide-tipped picks on each side of the machine rotate and chip away at the surface material to the desired depth or complete removal. If the material is not completely removed, a smoother, more uniform surface results s well as smaller, finer grain sizes so material can be removed more easily or used as back fill without additional crushing. The DC 200 is suitable for use on restricted jobsites and sensitive urban areas due to the low noise and low vibration levels.

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14 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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WELL Credentials for a Health-Centered Building Design American Technical Publishers introduces a comprehensive study reference used to prepare professionals for the WELL AP exam. The WELL AP Exam Preparation Guide includes four 100-question practice exams, one of which is provided in the text and three of which are provided digitally. This study guide emphasizes the key topics of the WELL Concepts and the certification process and aids in exam success through online learner resources.

The WELL Accredited Professional (WELL AP) credential signifies knowledge in human health and wellness in the built environment and specialization in the WELL Building Standard.

The standard measures attributes of buildings that impact health by addressing seven concepts: air, water, nourishment, light, fitness, comfort, and mind.

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STRUX Innovative Synthetic Fibers STRUX, GCP’s high-performing synthetic structural macrofibers enable customers to build smarter and faster without compromising performance. STRUX fibers provide high-strength reinforcement for resisting and controlling temperature and shrinkage cracking in concrete, and substantially speed up construction time, by eliminating the need to install welded wire fabric (WWF) or light rebar at the worksite. Compared to WWF, applications using STRUX fibers can be completed faster and exhibit long-term durability at lower installed costs – with estimated savings of 20%-30%. Applications include concrete floors, elevated composite metal decks, soil-supported slabs, pavements, tunnel liners and thin-walled precast.

GCP offers three STRUX fibers to meet specific project requirements.

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DUO Fiber Reinforced Polymer Formwork System DUO is a three-in-one lightweight fiber reinforced polymer formwork system that can be used to form walls, slabs and columns.

• Engineered plastic achieves strength through fiber reinforcements • Allows a permissible concrete pressure of 1,050 sf for walls and 1,650 sf for columns • Panels connect using a red coupler that resembles a door handle • Conveniently shaped standard panel sizes of about 3 ft. by 4.5 ft.

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DELIVERING SUSTAINABLE SOLUTIONS After water, concrete is one of the most sustainable and widely-used materials in the world.

Fly ash plays an important role in increasing the sustainability of concrete. Headwaters Resources is the nation’s leader in supplying quality fly ash. We can help you discover how to improve the performance of your concrete while simultaneously improving its environmental profile.

Visit www.flyash.com for answers to the most common questions about fly ash. You can also contact your expert Headwaters Resources technical support representative for advice on your specific sustainability opportunities.

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COVER STORY

By Susan Foster-Goodman

The Toyota Parts Center, Ontario, Calif. is a super flat floor with joint spacing up to 120 ft.

JOINTLESS FLOORS:

A High-Performance Solution The trend toward jointless floors continues to grow anywhere fewer joints, fewer cracks, less maintenance and exceptional durability are essential.

F

rom warehouse floors to high-tech, pharmaceutical and food manufacturing facilities, the trend toward jointless floors continues to grow anywhere fewer joints, fewer cracks, less maintenance and exceptional durability are essential. Meeting this demanding performance creates challenges

for concrete contractors faced with constructing a concrete floor that is both joint-free and crackfree. Since control joints are used to provide an acceptable place for concrete to crack, eliminating joints in traditional portland cement concrete is counterproductive.

Shrinkage-compensating concrete made with Type K cement enables contractors to achieve joint-free and crack-free slabs with a high-quality concrete solution. Larger placement sizes not only reduce the number of joints, but also reduce the number of mobilizations required, and minimize load transfer reinforcement requirements, helping the contractor stay on schedule and within budget.

COMBATING CRACKS Cracks in traditional concrete are most commonly caused by the drying

shrinkage of portland cement. So, to minimize or eliminate the effects of concrete drying shrinkage, admixtures, higher quality aggregates, and various construction methods are used to try to minimize drying shrinkage cracking. Common construction methods are the use of control joints typically spaced at 15 or 18 feet, extensive rebar reinforcement, post-tensioning slab designs, and pour strips. These materials and methods are both time-consuming and costly.

THE JOINT DILEMMA The use of tightly spaced control joints is a method of creating acceptable places for the inevitable cracks to form in portland cement concrete slabs. These joints are tooled or saw cut into the concrete after placement and then treated with joint

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FOUR MODELS TO SUIT YOUR BUSINESS NEEDS! • Flatwork slabs – Screed Flat, Slope, and Dual Slope via 100% automatic Laser guided control.

• Maneuverability – Ligchine offers the only “Zero Turn” boom screed machines in the industry.

• World Class FL #’s – Ligchine’s Fixed frame leveling system combined with our Superflat screed heads guarantee you the flattest slabs ever achieved.

• Pervious Concrete – Ligchine’s paver heads can be switched in a matter of minutes between Superflat slab mode and Pervious concrete mode.

• Wireless Control – All ScreedSavers are wireless remote controlled to ensure the safety and efficiency of the operator.

• Reinforcement & Heat Tubing – ScreedSavers operate without damage on Poly, Styrofoam, Wire mesh; chaired Rebar (single/double) and Heat Tubing.

• Cost of Ownership – ScreedSaver machines can be hauled with a pickup truck and trailer; Setup, clean up time and maintenance expense are the lowest in the industry.

• Value – The Bottom Line – ScreedSaver machines are the most competitively priced Boom operated screeds in the world resulting in ROI unmatched by any other screed.

Ligchine International | www.ligchine.com | (812) 903-4500 | sales@ligchine.com

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COVER STORY sealant materials to prevent moisture and contaminants from entering the concrete and causing accelerated deterioration and structural failure.

Properly spaced and treated control joints reduce or eliminate drying shrinkage cracking and protect the concrete from deterioration.

Unfortunately, control joints create significant challenges in concrete floor slabs subjected to repetitive use and heavy loads. Joint edges and panel corners of portland cement concrete slabs curl upward during the curing process as excess water in the slab dries out more rapidly at the surface of the concrete than the base of the slab. Curled edges leave unsupported space below the slab

edges that compromise the integrity of the panel at the corners. When loads are applied from forklifts or other mobile equipment used within the facility, these weakened edges break and spall. In fact, 90 to 95 percent of floor damage in warehousing, manufacturing and processing facilities occurs at the joints.

Joint challenges not only occur in the concrete slab, but also affect the forklift equipment and equipment operators. Curled panel edges create uneven joints that generate impact forces on forklifts and other mobile facility equipment, as well as equipment operators, as they pass over the joints. Abundant joint placement means an abundance of repetitive use impact forces – on both the

At Sofa Express, Portland, Tenn., joint spacing is up to 130 ft.

equipment and the operators. This ultimately results in increased maintenance and repair costs on the equipment, and health and safety concerns for operators.

By addressing joint challenges with higher quality concrete, larger slab sizes and fewer joints, construction can be simplified, time to completion of projects can be compressed, facility maintenance and repair costs can be minimized, and health and safety concerns can be reduced.

A SIMPLER SOLUTION A simpler, more cost-effective method of address drying shrinkage cracking is to improve the cement paste itself – the most essential element in concrete mix design. Type K cement (ASTM C845), based on calcium sulfoaluminate (CSA) cement technology, is designed to compensate for the shrinkage of portland cement and the aggregates used in the concrete. By using Type K cement, contractors can provide a higher quality concrete, known as Type K shrinkage-compensating concrete, which allows them to create a concrete floor slab solution that minimizes or eliminates joints and drying shrinkage cracking while reducing overall project costs.

HOW IT WORKS Type K cement is designed to create controlled expansion within the matrix of the concrete within the first 7 days. This expansion is created within the mix design using a cementitious shrinkage-compensating additive known as Komponent.

The designed expansion puts the concrete in compression and the reinforcement in tension early (at the time of placement) – and overcomes the shrinkage effects of portland cement and aggregates that start to shrink almost immediately.

Early tensile strengths and compressive strengths help prevent drying shrinkage cracking for the life of the placement.

Type K cement is engineered to

expand by creating a strong network of ettringite crystals that: improves the dimensional stability of the concrete itself, keeps the concrete in compression throughout its designed service life, and allows much larger placements with few if any control joints.

Larger placement sizes minimize the number of mobilizations required and significantly reduces mobilization costs. Larger placement sizes and fewer joints means fewer load transfer details and reinforcement materials (e.g., dowel bars, baskets, etc.) as well. By eliminating 90% or more of the tooling, cutting and treating of control joints, additional savings is also realized. All of these aspects help minimize material and labor costs and speed time to completion of the concrete installation.

In 2004, furniture provider Sofa Express Inc. specified Type K cement for the company’s Portland, Tenn., warehouse floor. In this 70,000-squarefoot installation, the number of joints was significantly reduced by extending the spacing between joints to 130 feet, rather than the 15 feet commonly used with portland cement-based concrete.

Traditional reinforcement was replaced with synthetic microfiber reinforcement dosed to maximize the performance of Type K cement. The use of synthetic microfibers helped further reduce project costs without compromising durability, and allowed easy access for laser screeds to maneuver around the placement area with ease.

The project was a success. At the one year inspection, the floor flatness remained well within super flat

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Joint spacing up to 120 ft. is found at the Costco, Mira Loma, Calif.

tolerances, measuring at FF 97.8 — with no drying shrinkage cracking.

FLOOR SYSTEM ADVANTAGES For new construction and expansion projects that commonly face project delays and additional expenses related to grinding and leveling concrete slabs prior to installation of high-performance flooring systems and other floor coverings, Type K Cement ShrinkageCompensating Concrete effectively bridges the gap between Division 03 (Concrete) and Division 09 (Finishes).

By maintaining floor flatness and floor levelness, timely and costly delays during construction can be avoided, and floor covering installations can proceed more efficiently.

flexibility for the structural engineer, designer, specifier, contractor, and owner. Whether you’re using traditional reinforcement methods, or fibers (i.e., micro-synthetic, steel) with perimeter reinforcement, Type K cement can achieve net zero shrinkage performance. This affords larger panel size placements with reduced mobilizations, and pour sequencing and panel dimensions can be modified to ensure joints are minimized are eliminated throughout the facility.

A PROVEN JOINTLESS FLOOR SOLUTION Shrinkage-Compensating Concrete made with Type K cement provides a high-quality concrete floor slab that maximizes the advantages of jointless floor solutions. Type K

adds value both during construction and in-service. By improving construction timelines, reducing construction costs, and reducing costly call-backs, construction teams can move forward with confidence and efficiency to complete projects on-time and within budget.

By significantly reducing repair and maintenance costs, Type K contributes to reduced lifecycle costs and improved operational efficiencies. With Type K ShrinkageCompensating Concrete, contractors and design teams can meet and exceed owner expectations and position themselves well to secure many future project opportunities.

Susan Foster-Goodman is the Director – Strategic Initiatives & Komponent Sales at CTS Cement.

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SLAB THICKNESS CONSIDERATIONS Eliminating curling and overcoming drying shrinkage affords other key advantages for slab-on-grade projects when using Type K cement. The additional slab thickness that is often designed into a slab to add weight in an effort to overcome curling can be eliminated. In addition, temperature and shrinkage steel used to try to prevent drying shrinkage cracking can be removed. Decreasing slab thickness and reducing reinforcement requirements are two additional ways Type K cement can help reduce overall project costs.

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www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 19

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FOUNDATION/WALLS

By Joe Nasvik

THE VAN WYKS

Concrete Construction Company A family owned company moves to the next generation.

V

an Wyks Incorporated was founded by Arie Van Wyk in 1978 in Waldo, Wisconsin.

The company’s focus was on serving farming businesses.

They started by moving houses and barns. In 1985 he purchased foundation forms to build walls and

foundations at the locations they moved buildings to—they were now a concrete wall contractor.

During this time they also sold farm machinery and this is something the company still does. Arie’s philosophy was to be a wide spectrum business.

“In 1985, when my father bought aluminum forms to enhance our building moving business, we also started installing foundations for new homes and multi-unit housing,“ says Matt Van Wyk, Arie’s son and

Arie and Matt Van Wyk are the owners of Van Wyks Concrete Construction Company. Arie started the company and his son Matt is in the process of formally purchasing the company.

Photo Credit: Van Wyks

the current Chief Operating Officer of the company. They also began to install concrete foundations and walls for commercial multi-family projects and this involved installing taller walls. Shortly after that they moved into warehouse construction where

20 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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FOUNDATION/WALLS Their first business involved moving houses and barns.

They started building walls and foundations to support the moved structures.

Today they are building walls up to 20 feet tall.

Photo Credit: Van Wyks

NEXT GENERATION MANAGEMENT

The River Walk project features an underground parking area for tenants which is 6 inches below the water level of the river, located 20 feet away from the project. Van Wyks has the entire concrete contract for the project.

Photo Credit: Van Wyks

they cast both walls and large floors.

Matt says he grew up in the business and it was always what he wanted to do. He remembers working in the company shop when he was five years old and by the time he was twelve he was operating their skid loader and working on the foundation forming crew. “By the time I was twenty one years old I supervised four flatwork crews. In 2004 we started an excavating business for houses and multifamily buildings; I operated a track-hoe almost daily. In 2014 I took over the business from my dad,” he says. His father considers himself partially retired now but he is still involved on a part time basis and this makes it possible to do other things when he wants to.

Matt says his father believed it was important for the company to have a wide work spectrum when they started and this is still the company philosophy. They still sell farm equipment and market concrete work to the farm community. Farmers are currently installing robotic milking stations so Van Wyk sells the concrete work for these high-tech installations. But Matt also wants to move the company into new markets and use the latest technologies.

Latest technologies. Matt believes the concrete industry will grow a lot in the next ten years and he wants to keep up with new technology. In 1994 Van Wyk was among the first foundation contractors in the country to invest in Robotic Total Stations for doing layout work in the field. Today they own several robotic stations and just bought two new Leica units. He purchased them from Scott Carter’s company Robotic Surveying Solutions located in Farmington, Utah, Carter sells the unit and trains employees how to use them effectively. Matt learned about Carter through Van Wyk’s membership in the Concrete Foundations Association (CFA) based in Mount Vernon, Iowa. Carter says that training is always included when he sells a unit. “I spend two to three days teaching employees how to use the instruments,” he says, “Then they get 24/7 phone support to help solve

problems.” Currently Van Wyk has six employees (including Matt) who are trained to use the robotic stations for layout work.

Van Wyk uses a computer assisted drawing program (CAD) called Auto Crete by GDB Software, Prescott, Arizona, to draw plans or import them from bid sources. When the drawings are complete they are sent to the robotic stations, a process that can be accomplished via Wi-Fi. The Leica system includes rugged Panasonic tablets with 10 inch screens that make it easy for workers to see drawings and make changes to them when it is necessary. Carter characterizes the system as both easy to use but also in-depth.

Matt says his company has owned aluminum forms for many years because they are lightweight and easy to use. But they have decided now to build on their form inventory with Western Forms, Kansas City, Missouri from this point forward. Their wall and deck forms (easily joined together with ledger forms) make it easy to build concrete homes. He is interested in building them and is trying to develop the market in his area.

Matt’s ultimate dream is to own a “3D concrete printer” (like a computer printer, the “ink” is concrete that is placed without forms to construct walls and structural pieces) for building walls and houses. For now he is following the technology and waiting for the time when the system is ready for prime time.

New markets. Like his father, Matt wants the company to have a wide range of offerings. The goal now is to do more commercial work. This includes warehouses, condominium developments, multi-unit and multiple floor housing, and commercial office structures. As stated earlier, they also want to build concrete housing.

RIVER WALK ON THE FALLS In October of 2016 Van Wyk won the contract to provide the concrete work for the “River Walk on the Falls,” a multi use development in

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Menomonee Falls, Wisconsin. It is a 55,000 square foot, 117 unit project.

Their contract includes 3,200 lineal feet of walls with heights varying from four to 15 feet in height and an elevator pad. “There are also 292 corners to form,” Matt says. They will place 190,000 pounds of rebar in walls and footings. They also signed a contract to install 12,000 square feet of stamped concrete walkways and special areas.

The multi-purpose building includes a basement parking structure, and a swimming pool with a large radius wall nearby. They will also place over 1,000 cubic yards of flowable fill (a low strength very flowable concrete mix). Adding to the difficulty of the project, the Menomonee River is only 20 feet away from the building and the top of the river is six inches above the basement floor.

Starting in business in 1978 to serve the farm industry, Van Wyks still does this work but on a larger scale.

Photo Credit: Van Wyks

VAN WYKS TODAY At the height of construction activity before the depression starting in 2008, Van Wyk had over 100 employees. Today they have 57 and they are more. Their use of new technology as well as higher productivity has increased during the intervening years so comparing the number of employees isn’t an apples-to-apples comparison. “Finding good key

employees for lead positions is also a big challenge. It’s a national problem that limits a company’s ability to grow. We are also losing veteran construction workers, Matt says .

The River Walk project is helping Van Wyks take a major step closer to their goal of building in the multiunit construction market and Matt is excited about the company’s future.

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DECORATIVE CONCRETE

by Greg Udelhofen

A Concrete Way to Say

THANKS

Ohio contractors join forces to thank military veterans through the nonprofit organization, Patios for Patriots.

W

hen Jason Geiser, owner of DecoCrete, and his friend Todd Hershberger decided to establish Patios for Patriots over a year ago, their sole purpose was to give back to the brave men and women who serve our country by designing and constructing concrete patios for deserving veterans.

Since then, the organization has constructed three patio projects and enlisted a small army of supporters and contractors who have provide money, material and labor.

“There are different ways to get involved. You can either nominate a veteran, or donate time or money,” Geiser states. We (Deco-Crete) work with 400 to 500 contractors throughout Ohio and many of them have stepped up to help with equipment and laborers. And when a contractor buys 1,000-1,500 yards of ready mix a year, his supplier is generally willing to donate the material needed to construct a patio that the contractor has volunteered to build.”

With concrete and other materials donated, along with much of the labor as well, Patios for Patriots can get the job done with only $1,500$2,000 in out-of-pocket expenses, and that’s to construct a pretty elaborate patio.

SELECTING A VETERAN, DELIVERING THE GOODS The organization serves primarily to select worthy candidates, promote volunteer support and involvement,

Left: The new Schafrath patio includes a unique water feature.

Middle: Flagstone stamp design is applied to the patio.

Right: Workers construct the seating wall using Hardscape Systems.

and then deliver the finished project in a timely fashion.

“We really work hard to qualify the candidates that have been nominated,” Geiser notes. “We talk with family members to get a better understanding of the veteran and what it would mean for them to be honored in this way. We currently have over 20 potential leads we are vetting for future projects, but once we select a recipient, we notify them and the work begins. Typically, we begin moving dirt on a Tuesday, send the recipient away for a few days and then invite them back to their new patio on Saturday.”

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DECORATIVE CONCRETE One of the projects Geiser takes pride in is the one constructed for Purple Heart recipient Edward Schafrath, who lives in Wooster, Ohio.

Keim Concrete served as the general contractor on the project that included a Hardscape Systems’ seating wall surrounding a fire pit and a water feature.

Keim installed all the flatEddie work, including stamping Schafrath trowels the design with Proline patio stamps; and DecoCrete prior to worked on the wall and stamping. water feature, as well as applying the color hardening for the project.

It was truly a family affair, with Edward’s daughter, Rachel Hoffee, nominating the Vietnam Veteran for the project, and her brother, Eddie, who is a Keim employee, working on the flatwork construction and stamping.

As for the general contractor, Rueben Keim, who along with his brother, Robert, own Keim Concrete, Reuben says he felt Jason Geiser cast color hardener over the patio.

privileged to be part of this project.

“I’ve known and worked with Jason for a long time, and I knew Edward’s story based on what Eddie told me,” Reuben notes, “so I definitely wanted to get involved in this project.”

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Vietnam Veteran Edward Schafrath miles of the company’s Wooster location. As for future Patios for Patriots’ projects, Geiser says expanding beyond Ohio is possible if other contractors are willing to take the lead in developing the program in their market area. It looks like it has a good foundation in Ohio with Geiser and

all his supporting partners, like Keim Concrete, as Reuben adds, “We definitely want to be involved with one every year. It’s been rewarding for me and a great way to give back to people who have done so much for all us.”

The Schafrath family enjoys the circular fire pit area of the patio that includes a Hardscape Systems' seating wall.

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SPECIFICATION GUIDE: SCREEDS

Screeds

A compilation of technical information when choosing your next screed.

Hand and Spin Screeds

1 The EZ Screed Complete Tool Set

The EZ Screed Tool is designed for walks, driveways and slabs of various sizes. The EZ Screed Tool used in an upright position is faster and more effective in the leveling of concrete, resulting in a more precise, professional finish to your concrete job while minimizing stress on back and knees as in the traditional method of screeding. Features: Powder coated handle with stand, quality aluminum blades (3 to 7 lbs. each), lightweight and durable.

ForConstructionPros.com/10080016 Model

Weight (lbs.)

Blade Lengths

Handles

EZ Screed Complete Set

5 lbs. per handle, 1 lb. per foot for aluminum screeds

3’, 4’, 5’ and 7’ aluminum screeds

Powder coated steel handle

Model

Weight (lbs.)

Blade Lengths

Handles

5 lbs. per handle

Will attach to any 10’ to 20’ aluminum or wood screed

Powder coated steel handles

EZ Screed Pro Two

2 EZYSCREED with Inbuilt Level

EZYSCREED is a manual screed, featuring an inbuilt level and reversible capabilities. It is lightweight with a designed screeding edge and reinforcements, making it the most useful, economical and strongest screed on the market. Available in lengths from 0.9 m / 2’11” to 3.6 m / 11’9”.

ForConstructionPros.com/12003790 Model

Weight (lbs.)

Blade Lengths

Handles

EZYSCREED

Multiple weights

Multiple

1

3 Spin Screed Rugged Screed

The Rugged Spin Screed • Weighs less than 100 lbs with 22’ pipe and screed • Pipe lengths up to 22’ • T-handles The electric powered Rugged Spin Screed is lightweight, quiet; simple to clean, and make rapid length changes. It works on both flat surfaces and steep slopes. The Spin Screed can be used with concrete having a 3” slump and still produce a high quality durable surface. With the Spin Screed, you’ll produce flatter concrete surfaces with less work and time.

ForConstructionPros.com/10084911 Model

Weight (lbs.)

Blade Lengths

Handles

Rugged Spin Screed

Less than 100 lbs. with 22’ pipe

Pipe lengths up to 22’

T-handles

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4 Kraft Tool BuckEye Straightedge

The BuckEye Straightedge is a one-person screeding tool. Made for striking off, leveling, and bringing concrete, sand and other building materials to the surface grade. Available in six sizes from 4’ to 12’. Featuring a top reading spring loaded level vial for easy on-the-job adjustments, and a tapered wood handle with three hand-holes for a smooth comfortable grip. Made of lightweight high-grade 100% aluminum alloy.

ForConstructionPros.com/10079589 Model

Weight (lbs.)

Blade Lengths

Handles

BuckEye Straightedge

Multiple weights

4’, 5’, 6’, 8’, 10’, 12’

Wood handle with built-in level vial

Model

Weight (lbs.)

Blade Lengths

Handles

Magnesium Keyhole Hand Screed

Various weights

10’, 12’, 16’, 20’

No

Model

Weight (lbs.)

Blade Lengths

Handles

Magnesium Super Flat Paver’s Straightedge

Multiple weights

8’, 10’, 12’, 16’

Aluminum 10’ button handle with insert

Wet Screeds

Pneumatic LBG 800 Bull Float 1 Chicago and LBG 1200 Screeds Chicago Pneumatic offers two new walk-behind screeds—the LBG 800 bull float screed and LBG 1200 hand-held screed—that are light and easy to handle. They are designed to provide a consistent, even surface without any guide or supporting tube. Equipped with a reliable Honda engine, the screed features a rubber element to reduce H/A vibrations. For quick adjustments, the ignition switch and throttle control are within easy reach for the operator.

ForConstructionPros.com/12057796 Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

CP LBG 800 Bull Float Screed

40 lbs.

Honda GX25 Mini 4-Stroke Engine

1.1 hp

25 cm4

84”

Three snap-lock sections, extending up to 180 in.

.61 U.S. qt. / (0.58 Liters)

Model

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

Honda GX35 4-Stroke Engine

1.3 hp

35.8 cm3

48”, 72”, 96”, 120”, 144”, 168”, 192”

Two adjustable handles

.67 U.S. qt./ (.63 Liters)

Weight (lbs.)

CP LBG 1200 Hand- 6 lbs., up to 26 lbs. (six Held Screed models available)

2 MQ Whiteman DuoScreed

Multiquip’ s DuoScreed utilizes a unique blade profile that enables one person to strike0off concrete floors. The screed’s vibratory action embeds aggregate and reduces air voids, producing a strong, dense slab, while eliminating the strenuous time-consuming labor of manual screeding. Unlike competitive designs (which require different blades for each application) the DuoScreed uses a unique reversing blade that allows for the usage of either the curved form to form edge or the wet-screeding edge.

ForConstructionPros.com/10079949 Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

DuoScreed (DSGPULW)

32 lbs.

Honda GX35SAT

1.3 hp

35 cc

6’, 8’, 10’, 12’, 14’, 16’

Adjustable

N/A

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EPOXY • METALLICS • NATURAL STONE • OVERLAY POLYASPARTICS • URETHANE • SEALERS

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AURORA EPOXY DUST A special high-tech pigment that can be added to a clear epoxy binder to achieve the most elegant-looking seamless floors ever imagined.

CHROMASTAIN

INDUSTRIAL EPOXY

Eco-friendly water-based self-sealing stain penetrates and adheres to porous surfaces for custom blending and shades.

Our epoxy can be applied clear, custom tinted as metallic (Aurora), or used with paint chips or quartz.

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SPECIFICATION GUIDE: SCREEDS Wet Screeds Continued

3 Multivibe MVPR100H

Joe Lindley, owner of Jlin Corp. DBA Multivibe has an impressive background in the art of working with concrete. He had 20 years of experience as a contractor prior to his 26 years of design/building equipment for concrete placement. Listening to customers is why Multivibe has the largest selection. All of the company’s products are designed and built with the Multivibe quality on focus. ForConstructionPros.com/ 12189542 Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

Multivibe MVPR100H

30

Honda

1.5 hp

35 cc

Up to 24’

Option: Single or Two

.6 qts.

4 Allen HD7070 Magic Screed

The Magic Screed is a precision engineered, lightweight wet screed for single operator strike-off of concrete. Fast and easy to use, this high-frequency screed provides uniform distribution over the entire blade length, enhancing structural integrity of the concrete through consolidation.

ForConstructionPros.com/12057778 Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

Allen HD7070 Magic Screed

30 lbs.

Honda

1.5 hp

N/A

4’ to 16’

Adjustable

600 mL

5 MBW SCREEDEMON

From a health and safety viewpoint, the SCREEDEMON lowers wet screed hand/arm vibration by between 50 and 90 percent. Hand/arm vibration is linked to a number of occupational health problems including white finger, carpel tunnel syndrome, and chronic arthritis. the link between engine and eccentric is a low cost, very durable, flex coupler. High maintenance flex-cables or rigid shafting is eliminated. the SCREEDEMON couples to its screed bar via a compression lock. The magnesium screed bar is designed to work within the natural frequency of the screed/bar combination. The back-to-back double triangular design is very rigid and offers comparatively uniform vibration along the full length of the bar.

ForConstructionPros.com/10083973 Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

SCREEDEMON WS500H

29 lbs. (power unit only)

Honda

GX35

1.9 in3

4’ up to 24’

N/A

0.17 gal.

6 Wyco Screed King

The Screed King features a unique magnesium power bar and power transfer system that produces a high frequency vibration to eliminate the honeycomb effect and speed concrete finishing time. The Screed King is available in a variety of configurations, with multiple board lengths that can be removed without tools.

ForConstructionPros.com/12321936

Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

Screed King

78 lbs. complete unit w/10 ft. screed bar

GX-35/ Honda

GX-35 4 stroke engine/1.3 HP

35.8 cm3

4’, 5’, 6’, 8’, 10’, 12’, 14’, 16’ and 20’

Two operator adjustable handle bar style handles

0.67 US qt.

32 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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CONC0417_28-37_SpecGuides.indd 33

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SPECIFICATION GUIDE: SCREEDS Wet Screeds Continued

Neuson Wet Screed Now Available 7 Wacker with Magnesium Boards

Wacker Neuson’s wet screed is now available with a full line of magnesium boards.

Magnesium is a strong, lightweight metal that will reduce the weight of the boards by over 25 percent compared to aluminum boards. The full line of magnesium boards is available in seven different lengths: 6’, 8’, 10’, 12’, 14’, 16’ and a 2-meter option. All the magnesium boards have a 4.9” width and range in weight from 9.8 lbs. to 25 lbs.. The boards are easily connected to the wet screed system. ForConstructionPros.com/12058112 Model

Weight (lbs.)

Engine/Motor Manufacturer

Engine/Motor (horsepower)

Displacement

Blade Lengths

Handles

Tank Capacity

P35A Wet Screed

34.2 lbs.

Honda GX35

1.6 hp

2.2 in³

4’ to 16’

Twin handle

0.7 qts,

Power Screeds

1 Somero S-10A Laser Screed

Introducing the Somero S-10A Laser Screed machine, driven by an unparalleled pursuit to be the best, this machine will help your operators make the most of every pass. The machine can be transported via flatbed or tag-behind trailer. It is a fully automated-self-leveling 10’ screed on a 20’ telescopic boom. The Quick GradeSet System can easily and accurately set grade in minutes. The OASIS Laser Control System can fine-tune and calibrate from the command center. ForConstructionPros.com/12189729 Model

Height (inches)

Width (inches)

Weight (lbs.)

Boom Coverage

Engine/Motor (Mfg & Horsepower

# of Drive Wheels

Machine Zero Turn Drive Capable

Fuel Type

S-10A Laser Screed

5’ 11”

6’ 8”

7,500 lbs.

20’

Kubota 35 hp

Two wheel drive with Proportional Joystick & Hydraulic Motors

N/A

Diesel

Model

Height (inches)

Width (inches)

Weight (lbs.)

Boom Reach

Engine/Motor (Mfg & Horsepower

# of Drive Wheels

# of Steer Wheels

Tank Capacity

S-22 Laser Screed

8’ 1”

7’ 2”

8,796 lbs.

20’

Duetz 74 hp, Tier 4i plus auxiliary power unit

4 wheel drive

2 wheel/4 wheel/ crab steer modes

12 gal.

Model

Height (inches)

Width (inches)

Weight (lbs.)

Boom Reach

Engine/Motor (Mfg & Horsepower

# of Drive Wheels

# of Steer Wheels

Tank Capacity

S-485 Laser Screed

4’

3’-7-1/2”

1,107 lbs.

Unlimited, no boom

Honda 20.8 hp

4 wheel drive

4 wheel steer

4.25 gal.

2 Ligchine International ScreedSaver BOSS 240

Ligchine International’s newest screed is the ScreedSaver MAX PRO. The MAX PRO combines the classic durability and accuracy of the ScreedSaver MAX with the technology advancements and design from the top-of-the-line ScreedSaver BOSS 240. The MAX PRO comes equipped with a touchscreen diagnostic display, zero turn drive system for unrivaled machine navigation, and concrete additive screed head spray system.

Boom extension of 16’ (4.9m) with a 12’6” (3.8m) screedhead results in screed rates up to 7,000 sq.ft./hour (650m2) ForConstructionPros.com/12321849

Model

Height (inches)

Width (inches)

Weight (lbs.)

Boom Coverage (sq. ft. per pass)

Engine/Motor (Mfg & Horsepower

# of Drive Wheels

Machine zero turn drive capable

Fuel Type

ScreedSaver MAX PRO

54”

76”

4,870 lbs.

200

Kubota 24.8 hp (Tier 4 Final)

2

Yes

Diesel

Model

Height (inches)

Width (inches)

Weight (lbs.)

Boom Coverage (sq. ft. per pass)

Engine/Motor (Mfg & Horsepower

# of Drive Wheels

Machine zero turn drive capable

Fuel Type

ScreedSaver II

54”

54”

2,840 lbs.

130

Honda 20 hp

2

Yes

Gasoline

34 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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New Q-Max Pro Concrete Mix is the first and only concrete mix to deliver one-hour working time, three-hour walk-on time, and 6500 PSI compressive strength. With superior workability plus crack resistance, freeze-thaw durability, and corrosion resistance. Quikrete.com.

What america’s made Of. Ž

ForConstructionPros.com/10074883

CONC0417_28-37_SpecGuides.indd 35

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SPECIFICATION GUIDE: SCREEDS Power Screeds Continued

3 Hydra-Screed from Curb Roller Manufacturing Hydraulically driven - 3-5 gpm at 2,250 psi required Two way (reversible) variable speed control • Screed up to 28 ft.

• Single pin allows for change of direction • Handles pivot for desired operators position ForConstructionPros.com/10079564 • •

Model

Height (inches)

Width (inches)

Weight (lbs.)

Boom Coverage

Engine/Motor (Mfg & Horsepower

# of Drive Wheels

Machine Zero Turn Drive Capable

Fuel Type

Hydra-Screed

48”

Up to 30’

N/A

N/A

Hydraulically driven

N/A

N/A

N/A

Truss Screeds

1 Allen SE12 Steel Truss Engine Driven Screed

The Allen Razorback Truss Screed is the contractor’s preferred brand when high tolerance FL Numbers are specified on concrete floors and pavements. For more than 40 years, Allen Truss Screeds have set the industry’s standard for precision levelness, rigidity and durability. Allen Engineering has a full line of truss screed models and accessories. Allen’s commitment to quality and customer satisfaction will insure that your truss screed will provide years of trouble-free operation.

ForConstructionPros.com/12057760 Model

Height (inches)

Max Width (ft.)

Max Weight (lbs.)

Engine/Motor (Mfg & Horsepower

Tank Capacity

Allen SE12 Steel Truss Engine Driven Screed

30.5”

2’ - 10’

N/A

Honda 9 or 11 hp

1.4 - 1.61 gal.

Model

Height (inches)

Max Width (ft.)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower

Tank Capacity

Allen SA12 Steel Truss Engine Driven Screed

30.6”

2’ - 10’

N/A

Air Powered

N/A

Model

Height (inches)

Max Width (ft.)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower

Tank Capacity

Allen AE12 Aluminum Truss Engine Driven Screed

30.5”

2’ - 7.5’

N/A

Honda 9 or 11 hp

1.4 - 1.61 gal.

2 Speed Screed Cruiser/Speed Screed HEAVY DUTY

Metal Forms Corporation offers two concrete finishing models: The Speed Screed Cruiser and the Speed Screed Heavy Duty to satisfy all concrete finishing job demands. The Heavy Duty model is designed for high production, low slump paving operations. The Cruiser model is the most popular model for all types of finishing projects.

• Reversible “double life” aluminum finishing tubes* • Variable width up to 75’ • Self-contained power source • Positive crown control

• Lift handles for easy transport • Forward travel by either hand winches or hydraulic winches ForConstructionPros.com/12189180

Model

Height (inches)

Max Width (inches)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower

Tank Capacity

Speed Screed Cruiser

16”

14”

11 lbs. per ft.

5.5 hp / Honda Engine, 8 hp Honda Engine

5 gal.

Model

Height (inches)

Max Width (inches)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower

Tank Capacity

Speed Screed Heavy Duty

27”

24”

20 lbs. per ft.

8 hp Honda Engine/13 hp Honda Engine

10 gal.

36 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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Truss Screeds Continued

3 MBW Blitzscreed

The MBW Blitzscreed is a lightweight aluminum screed designed for flat, inverted or crowned applications up to 65’. Available section lengths include 8’, 4” 4’,4”; and 2’, 4”. The diagonal truss/A-frame system offers structural strength while the flexcouplings and turnbuckle design makes for quick assembly and disassembly. Blind nuts help keep concrete off threads and eases disassembly/assembly. Hydraulic winches are also available. ForConstructionPros.com/12057874 Model

Height (inches)

Width (inches)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower)

Tank Capacity

MVS Mechanical Blitzscreed

16”

15”

8.3 lbs./ft.

Up to Honda GX270 (8.5 hp)

5.6 qts.

Model

Height (inches)

Width (inches)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower)

Tank Capacity

AVS Air Blitzscreed

16”

15”

8.9 lbs./ft.

N/A

N/A

4 MQ Whiteman WS-HE Series Vibratory Truss Screed

The WS-HE Series vibratory truss screed from MQ Whiteman features a modular design that delivers outstanding results in flat work or bridge deck applications. Sections are available in 2’, 2.5’, 5’, 7.5’ and 10’ spans featuring all steel truss construction and durable galvanized blades. Engine driven models offer a choice of 9 hp or 11 hp Honda engines, manual or hydraulic winches. The powered option with manual winches is ideal for low slump concrete. ForConstructionPros.com/12189440 Model

Height (inches)

Width (feet)

Weight (lbs.)

Engine/Motor (Mfg & Horsepower

Tank Capacity

MQ Whiteman Truss Screed

N/A

2.5’, 5.0’, 7.5, 10’ sections

Varies

9 hp, 11 hp

N/A

W I N C H E S

USTRY ION IND NSTRUCT O C E H T HES FOR TY WINC SPECIAL

BLOOM MANUFACTURING, INC. Custom Engineered Solutions Since 1910 Independence, IA 50644, USA | bloommfg.com P: 319-827-1139 | 800-394-1139 | F: 319-827-1140

ForConstructionPros.com/10075944

ForConstructionPros.com/10072208

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 37

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PRODUCT FOCUS

By Mark Junkersfeld

Schwing S 43 SX utilizes a fivesection placing boom to reach most areas of the project.

Photo Credit: Schwing

Tunnel Forms Build a

CASTLE

Using modern construction techniques to build a re-creation of a 19th century structure, a Michigan pumper has put his entire fleet to work on The Grand Castle apartment project.

L

and & Co.’s Roger Lucas, a partner with the firm developing the project, said he has patterned the architecture after Neuschwanstein, a 19th century palace in southern Germany. The Bavarian castle is one of the most popular of European castles and the inspiration for Disney World's

Cinderella Castle. JDE Concrete, a concrete pumper serving western Michigan, is pumping the one million square foot structure that replaces a mobile home park in Grandville, a city near Grand Rapids.

JDE Concrete Inc. of Grand Rapids was formed in 1997 by Joel Eerdmans. The company began

serving the West Michigan area primarily as a residential concrete contractor forming, pouring and finishing concrete flatwork, walls, footings, driveways, sidewalks and patios. They became one of the fastest growing concrete contractors with an aggressive push to expand into every area of concrete construction. In 2005 they purchased their first pump and

38 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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DUST AND SLURRY MANAGEMENT

BY HUSQVARNA Helping you work towards OSHA silica compliance.

Silica dust is produced when concrete, bricks, blocks, etc are cut and while it might seem harmless, it contains crystalline silica.

The existence of crystalline silica and the hazards it can cause to a worker’s body – silicosis, chronic obstructive pulmonary disease and kidney disease – has been known for decades. That is why Husqvarna Construction Products has continually developed solutions to control dust for decades.

OSHA has been working on a final ruling for the past several years, and since the first ruling on silica exposure Husqvarna Construction Products has been developing new ways to suppress crystalline silica and keep workers more safe, all while maintaining or increasing productivity.

OSHA’s final ruling on crystalline silica exposure, released on March 24, 2016, defines the amount of dust permissible. By

supressing dust with water or vacuums, you can work towards compliance with OSHA’s Table 1 PELs. To help, Husqvarna has developed a compliance guide to show how our products will aid in meeting and/or exceeding the OSHA rules. The complete compliance guide as well as third party testing results can be found on www.husqvarnacp.com/us/silica.

T 7500

T 8600

T 8600 P

T 10000

T 18000

DC 6000

S 13

S 26

S 36

W 70 P

C 3000

C 5500

DC 1400

DC 3000

DC 3300

DC 5500

A 600

A 1200

For more information on Husqvarna’s OSHA Regulation Guide visit:

www.husqvarnacp.com/us/silica

For more information on OSHA silica exposure guidelines visit:

www.osha.gov/silica

ForConstructionPros.com/10073334

CONC0417_38-41_ProdFocus.indd 39

Advertorial 4/14/17 9:39 AM

PRODUCT FOCUS The tunnel form system reduces noise between units by 50 decibels and is used in residential and institutional housing.

Photo Credit: Schwing

today have grown to a “Nine pump fleet with one on the way,” according to Mike Post, the company’s manager/operator and a 13 year veteran.

JDE came on the Grand Castle site to pour footings in July 2016. “There are hundreds of footings that are six feet wide by four feet thick,” Post says of the U-shaped foundation that supports two levels of parking and ten stories of residential comprising 460 rental units on the 23.6-acre site. A tunnel form system is being used for the residential floors and walls to produce high quality monolithic structures. The operation casts walls and slabs in one operation. This technique is highly systematic, earthquake proven and an ideal solution to the critical The pumper’s Schwing S 43 SX has shouldered the majority of the pumping.

Photo Credit: Schwing

problem of sound transmission in adjoining living situations. The poured concrete gives a sound reduction of 50 decibels. Prisons, hotels, dormitories, multi-family structures and commercial developments have all benefited from this construction technique. It reduces the heating costs by providing thermal mass and speeds up the building process. The form system incorporates two halves that bolt together to create a 35-foot long by six-foot wide by 10-foot high tunnel allowing the construction of horizontal and vertical elements simultaneously.

JDE has had two pumps a day working at the site six days a week.

“The tunnel forms consume about 200 yards each,” according to Post.

The forming is on a schedule that allows 12-hour

breaks but by the time crews place rebar and set the electrical runs, pumping occurs sometime between four and eight in the evening. “This makes for long days for our pump operators who handle commercial and residential jobs during the day and then pump the Castle project,” states Post.

JDE has used every pump in their fleet on the project from 28 to 43-Meter booms. As the project has risen, the company’s Schwing S 43 SX has shouldered most of the work.

“The five-section boom has a distinct advantage on multi-story structures,“ explains Post, “You set the first section vertically and then you have 100feet of boom to cover the decks.”

The S 43 SX is equipped with the RZ5 boom with 138’6” vertical reach that combines Roll and Fold versatility with 270-degree articulation on the Z tip section. The boom’s total articulation is 918 degrees. It also features curved, telescoping Super X outriggers. “The outrigger stance and compact boom are outstanding,” Post notes, “The boom unfolds faster than a 32-meter and it has a 26’1” front outrigger

40 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

CONC0417_38-41_ProdFocus.indd 40

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Super X outriggers allow the operator to position the pump close to the structure to maximize boom reach.

Photo Credit: Schwing

spread.” The S 43 SX utilizes the 2525H-6 open loop all-hydraulic pump kit which can output up to 216 cubic yards per hour at only 22 strokes per minute with its 98-inch long material cylinders.

Four of JDE’s boom pumps have additional axles for operation in Spring when frost laws are in place.

“These pumps can travel the six to eight weeks when road restrictions are in place,“ Post explains, “And we are a 24/7, 365 day a week pumper.”

The company’s pumps are used 50-percent of the time on JDE projects and the rest with a number of homebuilder customers. The company’s newest pump is a Schwing S 28 X with four section Double Z boom.

“Seventy-percent of our residential jobs can be pumped with a 28-meter boom,“ according to Post, “And the new Schwing has 270-degree articulation at the third and fourth sections which will be handy for specialty pumping indoor, under bridge decks and mezzanines.”

Post attributes much of the company’s growth and success to his operators. “I don’t hire any operators with previous pumping experience,“ he explains. “I spend a month with them training on the smaller machines which are more user friendly.” The company prides itself on customer service and competent operators.

“We haven’t had to sell our services in my thirteen years on the job,“ Post says. “Word of mouth advertising has kept us busy and growing.”

High visibility projects like the Grand Castle have added to JDE’s resume. Located next to busy

Interstate 196 southwest of Grand Rapids, Grand Castle’s 16-story tall tower is the tallest building for miles.

JDE leased a Schwing KVM 52 from Cross Pumping to pump the tallest stories. A second phase of the project will create a series of 13, twostory "carriage houses" around the larger structure. The carriage houses will include 104 units.

"The advertising is simple: Live like a king," said Lucas, who is betting his love of castle architecture will be shared by a public that is eager to find affordable rental housing near downtown Grand Rapids without paying downtown rents. "This is a

Workers pour the roof of the cast-inplace structure which will rise 10-stories.

Photo Credit: Schwing

place that is going to attract a lot of people because it's so unique," said Lucas, who claims the cast concrete construction is similar to that found at authentic castles. "I've always thought castles were beautiful and would make great apartment buildings."

DURABLE VERSATILE EASY TO USE LOW MAINTENANCE QUALITY TOOLING

Complete line of Superabrasive PCD’s, Diamonds & Polishing Pads Improved DiamaPro UV-HS

NOW WITH MICROBAN!

UV-HS Coatings, stains, repair materials, maintenance products, and DiamaPro UV Plus.

FLOOR PROTECTION AT THE SPEED OF LIGHT

Positioning the main section of the five-section boom vertically allows the other sections be be used for deck placements.

Photo Credit: Schwing ForConstructionPros.com/11057498

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 41

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PRODUCT FOCUS Toro MB TX 2500 Tracked Mud Buggy

Liebherr THS 110 D4f-K Crawler Concrete Pump

Toro announces the launch of the all-new, patentpending Tracked Mud Buggy — the MB TX 2500 — as an innovative solution for the concrete placement and material handling equipment categories. With the addition of this new product, Toro now offers both a wheeled version and a tracked version to meet the specific needs of a variety of contractors and applications.

• Intuitive controls for excellent maneuverability in confined areas, regardless of the operator’s skill level • Carries up to 2,500 lbs. of material • 25-hp KOHLER Confidant engine delivers the power to tackle tough hauling jobs • Transport speeds of up to 6 mph in forward and 3 mph in reverse ForConstructionPros.com/12295738

Liebherr's THS 110 D4f-K crawler concrete pump features a concrete hopper devoid of edges and projections to minimize accumulation of concrete residue and soiling.

Wacker Neuson 3001 Concrete Edition Dumper The 3001 Concrete Edition three-ton dumper is outfitted with a specially designed concrete chute that will allow delivery and placement of concrete to be faster and more efficient. Wacker Neuson engineers, with the help of concrete contractors, designed the concrete chute and dumper’s special bucket shape to allow transport and placement of concrete with less spilling and precise placement while reducing splattering of the concrete. The metal chute and has been shaped with high side walls to avoid spilling and the narrow shaped front enables precise pouring into the desired location. The 3001 bucket has been designed with special walls that are higher and tapered inward to avoid spilling while transporting concrete.

• Larger capacity allows transport of 40 cu. ft. of concrete per load • Travels up to 14 mph ForConstructionPros.com/12296442

Power Pusher “Slurry Tub”

Olin Engineering 5 220CA Pump Olin Engineering, Inc. has pushed CFA Pile grouting to the max with its latest version of the 5 200CA, the 5 220CA. According to the company, Olin is the most commonly used pump in the CFA or “Auger Cast” Pile Deep Foundation industry.

• Powered by a 260 hp Cummins and 250cc of Kawasaki hydraulic pump, it will empty 10 yard loads of structural grout mixes in under three minutes.

• The company builds five models exclusively for the application from 75 to 200 yph.

• A complete line of stationary concrete, shotcrete and ½” minus aggregate ball valve pumps are available.

ForConstructionPros.com/12061229

Power Pusher strives to continue developing innovative solutions that meet the user’s unique application needs, which is why a team of engineers designed a concrete industry specific attachment or “Slurry Tub”. The newly designed poly-tub can hold a true ¼ yard of liquid concrete while minimizing material loss during transport. This stateof-the art equipment is durable, easier to clean, and still maneuverable through a 32 inch “Man Door.”

• Liquid Volume: 6.75 cu. ft. (1/4 yard) of liquid concrete • Solid Volume: 11 cu. ft.

• Capacity: 1,000 lbs.

• Tub Material: Heavy-duty, high-density plastic • Width: 32 in.

• Height: 39-1/4 in.

• Length: 69-3/4 in.

• Max Speed: 4 mph • Electrical: Rechargeable 24V system ForConstructionPros.com/12164082

6-cylinder engine Open hydraulic circuit reduces system maintenance requirements • Maneuvered via remote control • Maximum concrete output: 133 cu. yd. per hour ForConstructionPros.com/12313499 • •

ARDIFLO Offers Floor Leveling Options ARDIFLO provides Floor Leveling Options to match the unique challenges of today’s jobsites.

• For smaller jobs, the ROVER enables a single installer to mix, deliver and pour up to three bags in a single process.

• For the biggest jobs, at 24,000 to 33,000 pounds pumped per hour, the POWERFLO High-Capacity Pump Trailer can level a 100,000 square-foot project in less than six hours.

• The POWERFLO delivers time and cost savings at the rate of up to 33,000 lbs. or 660 bags per hour.

• Installers can level at a rate of 16,500 sq.ft. at 1/4” per hour.

• ARDEX High-Capacity Self-Leveling Underlayments are designed for the ARDEX POWERFLO High-Capacity Pump Trailer.

These blends of Portland cement and other hydraulic cements are able to handle the challenge of delivery through the high-speed, long distance requirements.

ForConstructionPros.com/12074552

42 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

CONC0417_42-45_ProdFocProd.indd 42

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THE LEADER IN PROPANE GRINDING & POLISHING EQUIPMENT

TWO NEW LARGE PROPANE GRINDERS IDEAL FOR PROJECTS WHERE POWER IS NOT AVAILABLE!

L32G-X

32” work path with 6 x 9” heads.

Ideal for floor prep & heavy grinding - use it with 3 heads only, and fast polishing - use it with 6 heads.

L38GR-X

38” work path with 3 x 13.2” heads.

Combines the convenience of a remote-control with the flexibility and efficiency of a propane engine.

REMOTE CONTROLLED!

✓ POWERFUL KAWASAKI ENGINE FX921V, 31 HP, 999 CC ✓ BUILT-IN WEIGHTS & ADJUSTABLE GRIND PRESSURE ✓ CHAIN-DRIVEN FORCED PLANETARY DRIVE ✓ EASY TO USE AND MAINTAIN ForConstructionPros.com/10076302

www.superabrasive.com CONC0417_42-45_ProdFocProd.indd 43

4/14/17 9:40 AM

PRODUCT FOCUS Line Dragon Remote-Controlled Concrete Placement Machine The Line Dragon is a remote-controlled concrete placement machine that saves workers from having to drag concrete delivery line during a pour.

• The placer drags the end of the delivery line and places concrete while the dragger is hooked 20 ft. back carrying excess line and keeping it out of the pouring area • Will run over rebar grid, radiant heat lines, nelson studs, floor decking or other prepared surfaces • Placing boom swings 360° • Moves forward, backward, left, right or oblique • Weighs about 1,000 lbs • 12-hp gas engine ForConstructionPros.com/10082119

Graco ToughTek Portable Stucco Pump

Carbon Fiber Concrete Boom - CIFA K45H Irving Equipment is offering a new model of the carbon fiber concrete boom, the CIFA K45H. The first three booms are fabricated from highstrength steel and the last two sections are made from carbon fiber.

• 5-section R-Z style boom system with Valme 5-in. metric pipe along the entire length.

• HPG 1408-IF9 has an output of 185 yards per hour (1,160 PSI) using 9-in. pistons and a 9-in.

S-tube.

• Comes standard with an HBC brand remote control system which includes a main and a back-up handset.

• The K45H installed on a 4-axle chassis weighs about 73,000 lbs.

ForConstructionPros.com/11362586

Schwing S 38 SX Concrete Pump with Fivesection Boom The S 38 SX with five-section boom offers added articulation on the working side of the boom for faster deployment and the ability to snake the end hose deep into decks.

• Boom provides 106 ft. 11 in. of horizontal and 122 ft. 4 in. of vertical reach • Open-loop, twin-cylinder hydraulic pump offered in two sizes with output up to 216 cu. yds. per hour • Available in a three-axle configuration with cabover truck or four-axle version with conventional truck to meet federal bridge laws.

ForConstructionPros. com/12276315

Graco Inc., a manufacturer of fluid handling equipment, recently introduced the ToughTek Portable Stucco Pump for stucco and EIFS (Exterior Insulation and Finish System) materials, the newest addition to Graco’s ToughTek product line. Compact and portable, ToughTek Pumps use piston pump technology to deliver abrasive materials with a smooth, steady flow.

For EIFS applications, the ToughTek S340e Stucco Pump handles air/water-resistant barrier materials, EIFS base coats and finish coats. For stucco applications, the unit handles scratch coats, brown coats and finish coats.

• Compact design and small footprint make it easy to spray in tight areas • Easy to set up, easy to use and requires minimal maintenance • Variable speed controls allow contractors to dial in the exact flow rate needed, from low to highvolume output • Utilizing proprietary Graco technologies, the piston pumps stand up to abrasive stucco and EIFS materials to minimize maintenance downtime and reduce wear part expenses • The pump plugs into a standard 120V wall outlet or may be used with a 5.5 kW generator • Easily lifted by two people and comes with a 20-gallon hopper ForConstructionPros.com/12157245

Richway Cretefoamer Model CS-6G

Putzmeister 47Z Truckmounted Concrete Boom Pump The 47Z-Meter concrete boom pump features a new design for its pedestal and five-section boom for increased maneuverability, reduced overall weight and a more user-friendly design.

• Boom provides a reach of 134 ft. 10 in. horizontal and 151 ft. 3 in. vertical • Gross vehicle weight reduced to less than 70,000 lbs.

• Outrigger leg improvements include four identical screwed-on support cylinders with maintenance-free leg bolts • RS 909 Hopper offers a more robust, yet lightweight, design and an RFID safety switch to prevent operation with the grate open • Ergonic System features wireless computer technology and a Ergonic Graphic Display ForConstructionPros.com/12275398

The Cretefoamer Model CS-6G fits in a 3/4ton pickup yet is capable of producing up to 6 cu. yds. an hour of cellular concrete on a continuous basis. It is designed to do jobs of 2 to 40 yds. in less than a day. The cellular concrete produced can range from less than 30 up to 100 lbs./cu. ft. or more.

• Power is provided by a Honda gas engine running a 150-amp alternator and all-electric drives.

• An onboard 65-gal. water tank can produce 8 yds. of 30-lb./cu. ft. cellular concrete without refilling.

• The unit can be fed from a mortar mixer or other source, including ready mix trucks, by using the optional hoist to lower the pump portion to ground level.

• It may also be operated as a standalone grout pump with a 2-cu.-yd./hour capacity.

ForConstructionPros.com/12245678

44 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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GCP Applied Technologies Introduces TYTRO Admixture System for Shotcrete Applications

Allen AT14S Swivel Dump Track Buggy Allen announced the debut of their newest track buggy. The AT14S is a swivel dump buggy that allows operator to place materials with precision. It comes equipped with a rugged track drive that will allow it to operate in conditions that wheel barrows and wheel buggies simply cannot. It is also equipped with a swivel buggy that allows the operator to turn the bucket 90-degrees in either direction from center to provide maximum precision while placing materials.

AT14S standard features include: • Travels speeds up to 6 mph for greater job site efficiency • Steel bucket for maximum durability • 33” width allows the buggy to fit through tight areas ForConstructionPros.com/12300037

GCP Applied Technologies Inc. has introduced the TYTRO Shotcrete System, a complete state-of-the-art admixture solution that makes shotcrete for underground construction better, faster and less expensive than conventional systems available today.

The TYTRO System includes a nanotechnology-based rheology control agent, patented macro synthetic fibers, and a number of other newly developed admixtures that enhance productivity of the spraying operation and material performance. The TYTRO Shotcrete System provides faster early strength and enhanced bonding-to-rock with an increased one-pass thickness build-up. The system also minimizes rebound during spraying.

ForConstructionPros.com/12258812

Xylem’s Godwin Field Smart Technology (FST) Xylem’s Godwin Field Smart Technology (FST) and Godwin PrimeGuard 2 controller provide contractors working in remote locations with crucial pump operating data that can significantly reduce or eliminate the need for expensive, onsite personnel to monitor pumps manually. Xylem’s Godwin PrimeGuard 2 is a fully programmable microprocessor engine control system that allows for inputs from flow meters, level transducers, pressure transducers or standard floats. Using the data from any of these systems, Godwin Dri-Prime pumps can be programmed to start/stop automatically with no operator intervention required. Used in tandem with PrimeGuard 2, FST is a premium solution for any contractor.

ForConstructionPros.com/12315745

$360 EZ Screed Pro Two $425 EZ Screed Tool Complete Set

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www.EZScreedTools.com ForConstructionPros.com/10076152

ForConstructionPros.com/10071817

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 45

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FOUNDATION Q&A

By James R. Baty II

WINTER WALLS The Walls Are “Leaking�

This column presents a comparison issue between what is assumed to be faulty construction or installation and the natural hydration process combined with the change of seasons. This common platform for misconception can easily exist with your customers and should be part of your information packet left behind for every new foundation.

Q

uestion: Last winter we installed several foundations for a builder in one development. He called this week asking us to provide inspection and support for a home owner claiming to have moisture along the foundation walls and slab perimeter. They see wall cracks and some shrinkage cracks in the slab and are challenging that the new concrete is leaking. This builder is asking us to provide a written explanation to give to their

clients or an inspection report to determine if the walls are the problem. Can you help us identify the issue?

A

NSWER: The concrete foundation you installed this winter, like so many basements across northern climates, very likely achieved a frozen or near frozen state at some point, which is quite common. Cold weather requirements establish this cannot occur until after initial strength gain beyond 500 psi to prevent surface durability issues (ACI 332-141). When this happened, the hydration process slowed, and if truly frozen, stopped until the concrete temperature is returned to a level high enough for hydration to resume (+/30 degrees F).

Now spring, these walls contain significant moisture that will be consumed by this resuming hydration along with a considerable amount that will evaporate into the adjacent warming air of the confined basement spaces.

Spring is also when the frost leaves

Figure 1: Mix-proportioning showing the amount of water and cementitious material along with other constituents in various common concrete mixes.

Photo Credit: Concrete Foundations Association

the ground and rains begin to saturate the surrounding soils. The drainage systems properly installed will see an increase in water activity and sump pumps will not likely fully dry out. Here is where the problem begins.

Thousands of new foundations across a large portion of North America are constructed annually during the colder months of the year.

Building demand does not slow for Old Man Winter and, in fact, builders must maintain aggressive construction schedules during these winter months to meet the growing demand of spring sales. Such aggressive schedules require foundation installation during cooler and even frozen temperature conditions. This can be ideal for developing stronger concrete as the impact of evaporation is lessened, maintaining moisture in the

46 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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walls longer for the cement hydration process. However, when the concrete temperature drops low enough for the water molecules to freeze, this moisture is held at a constant, neither being consumed by hydration nor leaving the wall by evaporation.

ACI 332-14 specifies a maximum water to cementitious material ratio (w/cm) of 0.45 and as seen in Mix 3 of Figure 1 (a common mix design for residential concrete walls), this means that around 20 percent of the concrete is water. We will not go through the math here but it is not uncommon for a yard of concrete to contain approximately 40 gallons of water. Each ready-mix truck carries between seven and ten yards of concrete‌a lot of water.

Fast forward to the spring. Not only are the grasses and flowers waking up, the new foundation walls and the concrete can be said to be waking up as well. Even if the walls have reached full design strength, the amount of water that potentially remains within the concrete volume can be significant when considered in potential volume of gas. The waterproofed exterior of the foundation wall properly provides for long term performance and now this coating also prevents the moisture contained in the concrete from migrating into the soils and open exterior air. A fully-enclosed home has been built on top of the foundation wall, complete

with floor deck sheathing or perhaps even finished flooring. The basement now exists as a super-chilled space of walls with considerable thermal mass at a relatively constant temperature along with confined air temperatures beginning to rise ever so slowly.

Warming air achieves two known constants: 1) it begins to move and 2) it begins to absorb or take on an increasing amount of moisture (Figure 2). As the temperatures rise during the day, the air begins to move slowly along the concrete walls, still fresh from the winter construction. This movement picks up some of the water vapor that begins to evaporate from the concrete while it is also continues to hydrate. During the evening, air temperatures begin to cool again and the air can no longer hold the same amount of moisture. Since the basement is closed, air is no longer moving and the colder concrete walls become the ideal location for this moisture to condense back out of the air, resulting in darkening of the walls, condensation on slicker surfaces and along the base of the foundation walls. Cracks also present or are emphasized by this gathering moisture as there is greater surface area where natural shrinkage cracking has occurred in both slabs and walls. Cracks in concrete are part of a different discussion but for the application to this discussion, the cracks

are not presenting moisture into the foundation, they are receiving the moisture from the air and the naturally-evaporating walls. This is a crucial conversation to have with the prospective home owner and builder so that proper preparation and maintenance of the space can be selected.

Is any of this a problem for the home owner? It is not very likely to ever be a problem provided that means of establishing a balance between air temperature and moisture exists. The easiest solution for the builder is a short-term dehumidifier to draw the excess moisture out of the concrete. The best solution for the home owner would be for the mechanical contractor to design a heat pump system that exchanges air in the basement with air in other parts of the home to take advantage of the natural heat-sink and more constant temperature of the basement, naturally removing the moisture as well. Eventually, the concrete will achieve an equilibrium in moisture content, generally within the first full year and moisture condensation due to the concrete is no longer noticed. However, moisture can still be an issue for those homes that never resolve the lack of air movement in the basement, a problem not attributed to the concrete foundation in any way.

References:

1 Residential Code Requirements for Structural Concrete (ACI 332-14) and Commentary published by the American Concrete Institute, www.concrete.org 2 How To Read A Psychometric Chart authored

by Ryan Noble, published by QWare, June 2, 2016 | blog.qwarecmms.com

Ed. Note: Jim Baty is the Executive Director of the CFA and can be reached at (866) 232-9255 or by email at jbaty@cfawalls.org.

Figure 2: The common psychometric chart shows the relationship of air temperature to moisture capacity and determines or predicts the temperature at which condensation (dew point temperature) will occur within the air or at a surface. Chart obtained from How To Read a Psychometric Chart.

Photo Credit: Concrete Foundations Association

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 47

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ULTRAFLOR Concrete Polishing System Designed to Deliver High-end Architectural

Results Southern Californian concrete polishing contractor builds business on green solution for entertainment retail and commercial enterprises.

By Greg Udelhofen

A

lan Comins, owner of Green Polishing Solutions, has built a solid business delivering high-end finishing solutions that reduce heating and cooling costs, lower electrical costs by increasing ambient light reflection, and facilitates LEED accreditation. Oh, and the polishing systems really look great!

Before getting into the details of Comins’ success, here are a few details about how Diamatic’s ULTRAFLOR Architectural Polished Concrete Systems, designed to produce an extremely hardened, dust-proofed, reflective surface that imparts chemical, abrasion and stain resistance to concrete floors; and the science behind the product.

Floor design mirrors ceiling architectural design of the Anneberg Space for Photography in Los Angeles.

48 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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We are Here to Help

DUST EXTRACTION SYSTEMS FOR ALL INDUSTRIES

Pullman Ermator and its team of experts from numerous industries are here to help. With its iComply program we can help the contractor through our distribution chain with OSHA compliance.

“The tools that we need to protect workers are already out there. They’re available. They’re not prohibitively expensive, and they need to be implemented.”

-Deven Johnson

Director of Training, Health and Safety for the Operative Plasterers’ and Cement Masons’ International Association

What is Silica?

• Silica is quartz, and is found naturally in almost all rock, sand, soil, brick and concrete products • Respirable crystalline silica particles penetrate deep into the lungs causing lung disease • Silica exposure remains a serious threat to nearly 2 million U.S. working, including more than 100,000 workers in high risk jobs such as abrasive blasting, foundry work, stone-cutting, rock drilling, quarry work and tunneling

How do I Comply?

• Exposure determination • Use Table 1 or Monitor exposure • Create a written exposure plan • Designate a competent person

• Provide medical surveillance • Provide proper training • Required recordkeeping • Use proper HEPA dust collection

Go to www.iComplysilica.com

To see a list of presentations to find one near you

How to Choose a HEPA Vacuum Important points of requirements • High quality HEPA filters that are tested and certified, with a rating of at least 99.99 at 0.3 micron • 25 CFM PER BLADE INCHES REQUIRED FOR HAND GRINDERS • High CFM & Water Lift for proper matching to equipment • Must have a mechanical filter cleaning method, contained allowing no dust to escape • Multi levels of filtration, that include a cyclonic chamber, prefilters, HEPA’s and pre-separators • Drop down bagging containment systems, no dust can or tray • Availability to attach tools for collection at the source • Wet and dry availability when needed ForConstructionPros.com/10076052

CONTACT US AT

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ULTRAFLOR is a system of products engineered to work together. By taking high quality diamond tooling polishing equipment, lithium chemistry for densifying and guard products, repair materials, pinhole filler, and even a water based dye; training and specification support make it a single source solution.

“The science is in the lithium

technology combined with a specified process that has been proven to produce results consistently over the past eight years all over the U.S., Europe and Asia,” states Lark Branum, Diamatic’s ULTRAFLOR program manager.

Since the product is designed to convert ordinary concrete into highly decorative, quality floor surfaces

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CTSCEMENT.COM • 800.929.3030

suited for high-end retail, commercial, institutional and architectural applications, it can also be used in environments exposed to grit, salt, oil and other solvents.

“Standard ASTM stain testing has been done for all the products in the system,” Branum says. “We have guard products that meet specific levels of protection based on the floor or project requirements.

We also have a cross-linked densifier that will prevent salt intrusion into the concrete surface in areas where deicing slats are commonly used. The ULTRAFLOR system can be used on any interior concrete floor.”

LITHIUM VERSUS SODIUM Two things occur in concrete with soluble silicate treatments. First, upon drying the silicate forms a glassy material, adding minimal strength to the concrete surface.

Silicate deposited inside the concrete’s pores reacts with calcium hydroxide. This chemical hardening and densifying takes place over the course of one to two weeks. The calcium silicate hydrate provides most of the concrete’s surface strength.

Lithium ions can stabilize more silicate ions than sodium ones.

Lithium silicates generally have a lower viscosity than sodium of equal solids, so the lithium silicate can penetrate the concrete more effectively.

Lithium silicate products are expensive. Sodium silicate is an inexpensive commodity chemical.

• Silicates actually densify or harden the concrete, lithium and sodium are only carriers • Sodium silicates produce a by-product called sodium hydroxide, so it needs to be removed and disposed of • The particle size of lithium is 6.9, while the particle size of sodium is 22.9 • Lithium silicates do not require rinsing

ForConstructionPros.com/10072606

50 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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An acetone color dye was used to create a sitar design as the focal point of 1,001 Nights' polished ballroom floor in Glendale.

As for older concrete floors with cracks and other surface defects, Branum says the system has a repair component that includes a polishable repair product and pin hole filler designed to repair any surface defect regardless of the size or shape. Crack repair, on the other hand, is better handled using a joint material that can be matched to the floor and respond to movement that is common in a structural crack.

For customers, the system is designed to reduce overall life cycle costs and maintenance requirements.

The system is based on producing full surface refinement. By following a step-by-step process that results in a better gloss retention, higher distinctness of image, stain and wear resistance, the finished polishing results will last much longer than other techniques. Following a maintenance specification will extend the life cycle of an ULTRAFLOR project beyond 15 years according to Branum.

ENGINEERED CHEMICALS FOR POLISHED CONCRETE PROFESSIONALS

GREEN POLISHING SOLUTIONS Now, back to Comins and his Green Polishing Solutions’ business which he’s built primarily through the success he’s achieved using the ULTRAFLOR system.

“We’ve been working with the product for the past eight years and today 90 percent of our polishing business is with the ULTRAFLOR system,” Comins notes. “The industry has evolved over the years with better machinery and chemicals introduced to achieve high-quality polishing results; and the chemical concrete solutions are what have elevated the results we’re seeing out in the market. I believe Diamatic equipment is the best on the market; and the combination of equipment and chemicals are helping us achieve the results we’re able to deliver to our customers.”

Manufactured by SOLOMON COLORS, INC.

An Employee Owned Company 4050 Color Plant Road, Springfield, IL 62704 • 1371 Laurel Avenue, Rialto, CA 92376 (800) 624-0261 | www.solomoncolors.com | Made in USA a

ForConstructionPros.com/10074663

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 51

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CHOOSE

POLISHED

CONCRETE

ARDEX

PC-T

TM

Polished Concrete Topping

ARDEX Americas 400 Ardex Park Drive Aliquippa, PA 15001 888-512-7339 www.ardexamericas.com

The lithium-based densifiers and sealers are clearly the game changer for Comins when it comes to delivering a dust-free, shiny and durable finish.

On an existing concrete floor, Comins’ crew begins preparing the surface with a series of grinding grits – 16/20, 30/40, 60/80, 100 and 200 before applying the Diamatic ULTRAFLOR Flor-Sil lithium densifier, which is then followed by a 400, 800, 1,500 and 3,000 grit resin or plastic polishing pads. Finally, a 27-inch 3,000 grit burnishing pad and Diamatic ULTRAFLOR Flor Finish are used to seal the surface.

“I’ve done research comparing sodium and potassium silicate densifiers with lithium silicate densifiers and the lithium delivers a clearer

Top: The highly reflective finish of the Met Lofts polishing project in Los Angeles fills the lobby with natural lighting.

Bottom: The polished lobby of Trailer Park, an entertainment branding and marketing company located in Hollywood, aptly reflects the highend expectations of the company’s clientele. shine that really pops, and one that retains that shine and durability longer than conventional densifiers,” Comins says.

Even in applications where controlled joints and surface issues had to be repaired with a cementitious product, the lithium densifier/ sealer penetrates deeply, resulting in exceptional clarity across the entire surface.

ForConstructionPros.com/10071997

52 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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D

A

ND

BU I LT

IN AM E R I CA

PULSE-BAC MAKES OSHA EASY.

Deep blue integral coloring used on the Fillmore High School project enhances the Warriors' emblem.

S I GNE

costs. Polishing to a high sheen also lowers energy costs by reflecting all light sources.

Properly maintained, there’s no need to replace a polished concrete floor, unlike other floor coverings.

Whether it’s a 500 sq.-ft. or 100,000 sq.-ft. job, Comins is equipped to quickly mobilize and turn an old gray concrete slab into a decorative architectural focal point.

From retail centers to condominium lobbies to high school common areas, Comins says, “Once you leave the place, everyone is high fiving over the final results. And then it’s simply a matter of proper cleaning to maintain that just-finished look.”

DE

With the array of products that complete the ULTRAFLOR system, from pinhole/void filler to color dyes to densifier to stain resistance to wear protection to film buildup to cleaning, Comins says he’s able to deliver a long-lasting solution that meets his customers’ expectations.

With 80 percent of his polishing business tied to refurbishing existing concrete and 20 percent on new concrete his crews have poured, Comins expects the polishing business to only continue its upward trajectory.

Early in his flooring career, Comins installed lots of carpeting, vinyl and laminate flooring over concrete. That all switched about a decade ago when he saw the light, the reflective bright light of highly polished concrete and began offering customers a sustainable way of maintaining a good-looking and durable floor. Because of its thermal qualities, it can be used to cut energy

Frequently Ask Questions About the New Silica Standard.

Q - Does the new Standard require you to use a bagging vacuum?

A - No, not required. Bagger units are convenient, but not mandatory.

Have a Question, Need more Info? -Go to oshasilica.net and ask!

www.pulsebac.com 9384 Ridgeview Tulsa,OK 74131 • 866-954-9700 ForConstructionPros.com/10075388

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 53

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PRODUCT SHOWCASE Makita Expands Line-up of Dust Extraction Solutions Makita has expanded its line-up of dust extraction solutions for concrete contractors with a new Dust Extraction Attachment, model 196571-4, for use with demolition hammers and rotary hammers (accepts SDS-MAX).

The new Dust Extraction Attachment is engineered to help reduce dust created from breaking and chipping concrete.

• 6-piece kit for use with a jobsite vacuum (sold separately) • Compatible with Makita SDS-MAX Rotary Hammers and Demolition Hammers • The Dust Extraction Attachment kit and includes a dust cover, hose (62-1/2" long), hose holder for power cord, hose holder for "D" side handle, hose holder for straight side handle, and hose joint (1-7/8" ID, 2" OD) ForConstructionPros.com/11364543

BW Manufacturing, Inc. A-404 Pulse Vac

CPS CAT-5 Extractor Vacuum The CAT-5 Dust Extractor’s design helps you maintain focus on the job and decreases downtime. This system’s pleated primary filter elements, with nonstick coatings, have excellent dust release to prevent filter blinding and motor overheating.

• HEPA filter has 3X more usable surface area than other comparable vacuums, allowing for a greater amount of air flow while capturing more debris ForConstructionPros.com/12140173

The A-404 Pulse Vac with four primary filters that are pulsed clean every 6 seconds with a reversed charge of compressed air ensuring a continuous vacuum. Also the A-404 Pulse Vac has two 5” hose inlets and a collector that can hold a 55 gallon drum worth of material. With your reduction in filter cleaning labor combined with its adaptability to all shrouded equipment, it is an essential and recommended dust collector system for today’s contractor.

ForConstructionPros.com/12320727

Dustcontrol Inc. DC 5900 All DC 5900s are powerful and reliable dust extractors. They are built on robust and sturdy steel chassis for maximum durability, for example on construction sites. With a direct driven three phase turbo-pump the DC 5900 is suitable for continuous operation with large quantities of dust.

ForConstructionPros.com/12281038

HTC Greyline 40 D HTC Greyline 40 D is a three-phase dust extractor which is designed to support all grinders in the HTC Greyline series and also many of HTC’s more advanced grinders.

• Robust and sturdy construction provides a handy machine with high quality and great reliability • Optimized to handle dry grinding of natural stone, concrete, floor preparation and wood, but the machine is also excellent for areas where extraction of dust is required ForConstructionPros.com/12140112

Bosch 9- and 14 Gallon Vacuums Bosch introduces a portable dust collection solution with a new lineup of nine- and 14-gallon vacuums. The VAC090S and VAC090A nine-gallon vacuums and VAC140S and VAC140A 14-gallon vacuums increases dust extraction with suction power, but also decreases the loss of suction by offering two options of on-board filter cleaning — semi-automatic and automatic.

• Ideal for applications that require premium dust extraction such as tuckpointing, concrete surfacing, concrete drilling, cutting and chipping concrete • Outfitted with an automatic filter cleaning mechanism, the VAC090A and VAC140A selfclean the flat pleated filter through a reverse airflow every 15 seconds during operation • The VAC090S and VAC140S includes a module on the hose to cut off suction and activate the filter cleaning with the push of a button • Vacuum hose can be securely attached to dust collection guards and shrouds ForConstructionPros.com/12002344

54 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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Introducing Dust and Slurry Management

by Husqvarna Husqvarna has always been committed to developing products that meet customers’ needs and are efficient, ergonomic and user-friendly. That is why Husqvarna recently acquired Pullman Ermator, a manufacturer of dust and slurry management systems for the construction industry. During the World of Concrete, 13 new dust and slurry management products were introduced for the Americas market. These include three-phase HEPA dust extractors and preseparators for heavy jobs, wet/slurry vacuums, singlephase HEPA dust extractors and portable HEPA air scrubbers.

ForConstructionPros.com/12322059

New Line of HPLM (High Performance Low Mass) Vacuums from Pulse-Bac Pulse-Bac has introduced another new concept to the world of dust collection with their new line of HPLM (High Performance Low Mass) vacuums. What is HPLM? Put simply, they're vacuums designed to have the highest power to weight ratio available. This new line of vacuums delivers very high suction while working on a light weight platform that is designed to be easily transported. The 3690, the first unit to be released in the line, delivers 690 CFM with 110" of H2O lift and weighs in at only 208 lbs., by comparison, that's about 70% lighter than most vacuums with similar suction power. Fully Compliant with Table 1 of the New Silica Standard.

• Wireless remote start function lets you start the vacuum with a fob from up to 180 feet away.

• The 3690 is built on a larger version of the popular Revolution 360 bagger frame.

• Newly redesigned dump valve can be used from a standing position and automatically closes after used.

• Can use the Longo-Pac endless bagging system.

• The HPLM line uses the patented Pulse-Bac self-cleaning technology.

ForConstructionPros.com/12109625

This changes everything!

Power Trowel Concrete Polishing Systems

GHP LP230

Are you ready?

Patent # 7815393 and Patents Pending

➠ Award-winning diamond tooling ➠ New propane powered rider ➠ Fast, planetary processing

www.WagmanMetal.com 800-233-9461 ForConstructionPros.com/10256134

www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 55

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PRODUCT SHOWCASE Contractors Need to Be Aware of The Increased Importance of Dust Suppression in the Workplace In recent years, the concrete industry has seen an increased emphasis on concrete dust suppression and containment, both for worker safety and jobsite cleanliness. OSHA’s new regulations for the contractor, demanding greater dust collection on the jobsite. In May 2013, OSHA issued a proposed rule for crystalline silica, which includes revised PEL limits. It will become essential for contractors to outfit tools and equipment with dust containment devices, like shrouds and vacuums, both to control the level of airborne dust that is harmful to breathe and to reduce the labor of cleaning up dust as it settles. These very fine particles can find their way far beyond the work area creating a problem when the jobsite is in an open business, public buildings or open area where dust can migrate. By attaching HEPA dust collectors and shrouds to your equipment, dust can be contained. Be compliant, SAFE and more productive.

ForConstructionPros.com/12322342

The LAVINA Vacuum line

by Superabrasive The LAVINA Vacuum line by Superabrasive includes a complete range of models with different cfm, power and voltage options to suit any grinding project. V-25L and V-32 vacuums feature multiple motors for increased CFM and automatic jet filter cleaning system. The smaller V-20 vac has a semi-automated filter cleaning.

They are all equipped with HEPA filters that trap the small and dangerous-to-breath dust particles, as well as Longopac bagging system.

ForConstructionPros.com/12281048

SASE BULL 1250 Dust Collection System With over 62 sq. ft. of filter area, the SASE BULL 1250 Dust Collection System features a manua filter shaker system and secondary HEPA filtration.

• 75 dB • 8.5-hp regenerative motor • Soft start • Oversize dust bin - uses heavy mil plastic bags for easy emptying • Includes 50 ft. of 3-in. hose and 100 ft. of heavy duty power cord • Constructed of 14 gauge steel for longevity in industrial use ForConstructionPros.com/10926295

ForConstructionPros.com/10896948

ForConstructionPros.com/10075324

56 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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www.forconstructionpros.com/concrete | April/May 2017 | Concrete Contractor 57

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THE LAST PLACEMENT: BACK TO BASICS

By Brad Humphrey

6 STRATEGIES to Ensure You Are a Quality Construction Contractor These six strategies can help construction contractors take a more assertive approach to make quality a real part of every project

W

ill most contractors admit to shooting for being the most quality provider of their products and services? Yes! But, will many of these same contractors confess that they may not be doing enough to ensure that quality is impregnated on their minds and the minds of every leader and employee? Yes! Then where is the disconnect?

Let’s take a more assertive approach and consider then how we can make quality a real part of our daily existence, planning, execution and clean-up.

1

COMMIT TO “NO BAD JOB” LEADERSHIP

Owners and senior leaders must first be committed to looking at every entity within the company to apply this mantra. There are no “shades of gray” when it comes to commitment for quality. You either live it or you don’t!

2

JOBS ONLY START AFTER A PRE-START MEETING

Simply put, “No job, of any size, will begin until the crew leader, estimators and key members supporting the project have a short “pre-start”

meeting to line out roles, responsibilities, proper sequence confirmation, needed tools/equipment secured and prepared, and site is ready for our crew. Keep your thumb down on this effort alone and watch productivity and profitability begin to rise.

3

DEMAND DAILY PRE-DAY SITE PREPARATION

Once your project has begun make it mandatory that each new day will begin with your version of an “AM Huddle” between the leader and their workers. Every day may bring some new wrinkle to what needs to be adjusted, made a higher priority, etc.

4

CLOSE EACH WORK DAY WITH CLOSING COMMENTS & STAGING Every work day should end with the crew leader meeting with their workers to hold, what I call, a “PM Huddle.” This short meeting, at the site, debriefs on the day’s efforts.

Good or bad, there needs to be a clear download on what the crew did well, what needs to be improved, and remind everyone of what the crew can do today to prepare (stage) the site for the next day of activities.

5

CONDUCT POST-PROJECT REVIEWS & MAKE NEEDED CHANGES Depending on the size of projects you normally work, each project should have a debrief on several of the following items: • Costs — too much, too little, etc.

• Chemistry of workers on project • Customer relations — better or needs improving • Process compliance — Did we

follow our own company SOPs? If not, why?

• Lessons learned that should move us to update our existing processes Your post-project reviews can be “gold” to your company improving quality, productivity, safety and profitability.

If we have learned something new be sure and fast to make the needed changes from what you currently do.

This will reinforce to your workers that you do listen to their concerns, ideas and suggestions.

6

DEVELOP A VISION FOR QUALITY AND “PREACH IT BROTHER!” Perhaps the most important effort to take is to develop a vision for the quality you want to see on projects — every project. The vision for your desired quality needs to be written down and placed on posters, business cards and other company related giveaways.

Each meeting throughout the year should either recite the vision, or at least the vision should be discussed in terms of, “How are we living the vision?”

You must “Preach it Brother,” if you are going to saturate and influence the commitment to quality throughout your organization.

Dedicate yourself and your actions this year to being a quality contractor. Your quality, and profits, may just respond quite well!

Brad Humphrey is President of Pinnacle Development Group, a consulting firm that specializes in the construction industry.

58 Concrete Contractor | April/May 2017 | www.forconstructionpros.com/concrete

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