June 2018 by Concrete Openings Archive

JUNE 2018

Night Cutters Slicing Through Seven Miles of Concrete in the Middle of Oncoming Traffic

W W W. C O N C R E T E O P E N I N G S . C O M

President’s Page

JACK SONDERGARD CSDA President

hose of us who were fortunate enough to attend the CSDA 2018 Convention in Maui surely were not disappointed. The weather was fabulous, a bit windy but warm, a welcome change for those of us tired of winter’s cold and snow. Our keynote speaker, Paul de Gelder, provided an exciting but gruesome tale of his shark attack survival and rehabilitation. He certainly inspired us to work hard, play hard and reach for the impossible. Workshops and roundtables once again provided the opportunity for those of us in the industry to share information and discuss new ideas. There were many great moments for me at the convention. Perhaps the most rewarding came during the Grand Luau. It was my distinct pleasure and high honor to present the Lifetime Achievement Award to Mike Nelson of K2 Diamond. Mike has worked in our industry for 39 years! He was instrumental in the introduction of the 360 wall saw, the workhorse of concrete sawing in the 1980’s and 90’s. Mike has served on the CSDA Board of Directors and on numerous committees for years. Mike played an integral part in the CSDA Standards and Specifications Committee development of the standard for the continuous tube thread pattern. Mike has been and remains a member dedicated to the mission of the CSDA. Perhaps most important, Mike is simply a good man, friendly, encouraging and upbeat. He was the first person to welcome me to CSDA. His ready smile and friendly demeanor were one of the reasons I felt like I belonged immediately. His encouragement to me and other newcomers has been a tremendous asset towards growing our organization and elevating skills, productivity and safety within the industry.

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Safety has always been a top priority for my company and certainly for CSDA. I believe that the safest employees are the best trained employees. In September, OSHA began enforcing the new silica rule. Of course, the intent of this standard is to provide the safest possible working conditions for employees. CSDA’s best practice, CSDA-BP-001 Slurry for wet concrete cutting, dramatically decreases the silica exposure our employees face. Technology assists in the proper gathering of data to prove the silica exposure on various concrete sawing and drilling services. CSDA is continuing to work towards the collection of data to show compliance with the standard for our various operations. For those of you who are collecting data, we are hoping you are willing to share it with other members. Company Certification continues to be a priority for CSDA. The application is user friendly and available on our website. We believe this will be a requirement in the future. CSDA is trying to make sure our companies are ahead of the trend. There are many benefits to becoming a certified company. The first benefit I noticed, as a business owner, was how many of these things my company was already completing. It was reassuring to know and helped me to organize my thought process when talking to potential customers. Truly, I believe you will find the application easy to complete. Several contractors have volunteered to assist others with the application process. Please feel free to take any of us up on our offer. Contact the CSDA office for the name and phone numbers of those willing to assist you with this task. As always, I want to invite any existing members or those considering becoming a member of CSDA to check us out. We have much to offer. Go to our website. Call our Board Members. Attend a quarterly meeting. I promise you, any time you invest in CSDA will return to you multiplied. Our next quarterly meeting is September 5-6 in Milwaukee. I hope to see you there!

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CSDA OFFICERS

CONCRETE CASES

President, Jack Sondergard Central Concrete Cutting, Inc. jacksondergard@sprynet.com

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Vice President, Matthew Finnigan National Concrete Cutting Inc. matthewf@nationalconcretecuttinginc.com Secretary/Treasurer, Mike Orzechowski DITEQ Corporation mikeo@diteq.com Past President, Kevin Baron Western Saw, Inc. kevinb@westernsaw.com Executive Director, Patrick Oâ&#x20AC;&#x2122;Brien Concrete Sawing & Drilling Association pat@csda.org CSDA BOARD OF DIRECTORS (Terms expiring 2019)

Drilling & Sawing Company Tackles Massive Tower in Decatur

Ty Conner Austin Enterprise tconner@austin-enterprise.com Dan Dennison Diamond Tools Technology ddennison@diamondtoolstechnology.com Mark DeSchepper Echo GPR Services mark@echogpr.com Jami Harmon GSSI harmonj@geophysical.com Jessica Ledger-Kalen Royale Concrete jlk@royaleconcrete.com

Women in Concrete

Night Cutters

Greg Lipscomb Diamond Products glipscomb@diamondproducts.com CSDA BOARD OF DIRECTORS (Terms expiring 2020) Peter Bigwood Brokk, Inc. peter@brokkinc.com Scott Brown ICS, Blount Inc. scott.brown@blount.com Bill Fisher National Research Company bfisher@nationalresearchcompany.com

Slicing Seven Miles of Concrete in the Middle of Oncoming Traffic

24 GPR Takes a Flood-Damaged Pier

Rick Glidewell Hilti, Inc. rick.glidewell@hilti.com Bennett Jones Advanced Concrete Sawing, Inc. bennett@acsawing.com Tim Terrell Husqvarna Construction Products tim.terrell@husqvarnagroup.com

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A Historic Renovation 100 Years in the Making

From Steer Clear to Have No Fear

34 C O N C R ET E O PEN I N G S | 3

CONCRETE OPENINGS MAGAZINE Official Magazine of the Concrete Sawing & Drilling Association Volume 27, Number 2 ISSN: 1093-6483 Concrete Openings magazine is published by O’Brien International, Inc., four times each calendar year in March, June, September and December. Editorial contributions are welcomed and advertisements are encouraged. Please contact the Concrete Sawing & Drilling Association 100 2nd Avenue South Suite 402N St. Petersburg, FL 33701 Tel: 727-577-5004 Fax: 727-577-5012

C O N T E N T S 18

Concrete in Paradise

Safety Counts

Tech Talk

Core Health

WWW.CSDA.ORG Magazines, newspapers and private individuals are welcome to reproduce, in whole or part, articles published herein provided that acknowledgements are made in the following manner: “Reprinted courtesy of the Concrete Sawing & Drilling Association, Concrete Openings magazine, Issue Date.” No alterations should be made in the text of any article. PUBLISHER

The information and recommendations in this magazine are provided for use by fully qualified, professional personnel. The Concrete Sawing & Drilling Association and the publisher disclaim any responsibility as to their use by readers and shall not be liable for damages arising out of the use of the foregoing information.

The OSHA Silica Rule—What the Concrete Renovation Industry Needs to Know

The Business of Business

Industry Bits

ASSOCIATE EDITOR Matthew Meeks

EDITORIAL REVIEW COMMITTEE Ted Johnston Pat Stepanski Doug Walker

Workplace Violence—Arming Managers with Guns?

H20 – What’s the Magic Number?

Patrick O’Brien

CONCRETE CASE CONTRIBUTORS Terry Sanders Jessica Ledger-Kalen Ray Anger Gaétan Caron

CSDA Says Mahalo to Hawaii Attendees

From Scapegoats to Saviors: How Millennials are Changing the Face of Business

56 Certification 58 Membership 60 Calendar 64 Director’s Dialogue

All bylined articles published in this magazine represent solely the individual opinions of the writers and not necessarily those of the Concrete Sawing & Drilling Association.

38 Cover: Sparks fly at night as the Texas Curb Cut Barrier Wall Machine slices into a 24-inch thick barrier.

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Concrete Cases

3 Million Pounds of Concrete Drilling & Sawing Company Tackles Massive Tower in Decatur

ecatur Morgan Hospital in Decatur, AL was scheduled to have the top three floors of its south tower removed in late 2016 to eliminate excess space and lower utility and maintenance costs. It was determined that the project, which would last over a year, would benefit greatly with the selection of concrete cutting services because they offered a less invasive approach by reducing noise, vibration and damage to surrounding structures. This was ideal for the hospital which would remain operational during this massive demolition project.

The general contractor for this job was Robins & Morton Group. The demolition contractor, D. H. Griffin Companies, contracted CSDA member International Drilling & Sawing Inc. (IDS) to complete the cutting portions of the job. This included the cutting of all concrete slabs, columns and girders with multiple sawing machines. IDS started their portion of the job on the roof by cutting it into 10,500pound panels for easier removal. The roof slab required the use of some heavy equipment including a 1,700-pound Core Cut dual shaft slab saw CC6560XLT and a Core Cut electrical slab saw CC1300, both by Diamond Products. Once the roof was removed, IDS proceeded to use a WS25 wire saw by Diamond Products to cut most of the beams, girders, columns and slabs on each of the lower levels. This same wire saw was also used on parts of the roof but was particularly useful for the lower floor slabs which were narrower and couldnâ&#x20AC;&#x2122;t bear the weight of the heavier Core Cut models. The 30-60 feet wires were used on inner beams, facial beams and both single and double girders, some of which weighed as much as 26,000 pounds each. 6 | JUNE.18

Decatur Morgan Hospital in Decatur, AL before demolition.

Operator using a WS25 Wire Saw by Diamond Products.

For the roof, IDS had to drill pic holes into 160 cut sections of concrete so that D.H. Griffin Companies could haul them off. A Core Bore H/S by Diamond Products was used to drill a total of 658 six-inch wide holes with depths ranging

between 4 to 16 inches into the panels. These pic holes allowed the demolished sections of the tower to be lowered to ground level by an on-site crane. Cable was run through the pic holes, attached to the crane, and then lowered to ground

Right: Overhead photo showing various slabs, beams and girders.

10,500-pound slab panel being lowered to the ground by crane.

level where demolished sections were broken up, loaded into trucks and hauled off. Lasting about 13 months, operators did encounter a couple challenges, but nothing the guys at IDS couldn’t handle! The general contractor, Robbins & Morton, established a safe distance of five feet that workers were required to maintain while cutting near the edge of the building. Due to the height of the tower, red tape was used to mark the safe distance points and

Bird’s eye view of job site and on-site crane.

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workers were required to wear safety harnesses with retractable lanyards. “Running slab saws close to the edge five stories high can be somewhat unnerving,” said Head Operator Mike Chapin. Additional required PPE included safety goggles, face shields and steel-toed boots. Additionally, IDS encountered the challenge of adhering to the new OSHA silica laws which went into effect toward the end of the job. To comply with the new regulations, IDS brought in a portable concrete slurry water recycling system

On-site crane used to lower precut panels to ground level.

Operators using a 20-inch Dragon Ring Saw.

made by Mud Hen. Project Manager Travis Wilson and Head Operator Mike Chapin both played instrumental roles in ensuring the progress and success of the job from start to finish. This job was one for the books as almost every kind of concrete cutting a contractor can do was implemented. Birmingham Manager Terry Sanders said the job, â&#x20AC;&#x153;kept our guys up to speed. Work was efficient with 10-hour work days

Monday through Friday and the job was staged in a fashion that our guys could maximize their skills and abilities.â&#x20AC;? Including the roof and mezzanine, there were a total of five levels and one staircase that were cut and removed. Each floor took IDS about two weeks to complete. After 160 panels, 90 beams, and 42 girders, there was a total of 3,000,000 pounds of concrete cut and removed during this job. IDS met all expectations and exceeded all goals set forth by D.H. Griffin Companies.

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Concrete Cases

continued

OSHA Standards

IDS operators and crew.

The use of controlled demolition was the best option for Decatur Morgan Hospital, which remained fully operational during the duration of the project. The use of diamond cutting limited the vibrations and noise, while also maintaining structural integrity of the connecting operational side of the building. Concrete cutting proved to be an ideal solution and a far less aggressive approach

compared to alternative methods such as wrecking balls and jackhammers. Hospital President Nat Richardson said to the Decatur Daily News that, “The project will save the hospital money in the long run, because it will no longer have to pay for utilities on those floors or other maintenance and upkeep costs.”

The new OSHA standard requires employers to limit worker exposures to respirable crystalline silica and to take other steps to protect workers. Employers can either use various control methods of the construction standard, or they can measure workers’ exposure to silica and independently decide which dust control methods work best to limit exposures in their workplaces to the permissible exposure limit. Information on the OSHA silica rule including safety documents, best practices and the CSDA/OSHA alliance is available at www.csda.org. CSDA also offers customized safety manuals to help organizations with audits and prevent violations and fines.

REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

COMPANY PROFILE International Drilling & Sawing Inc. started in 1993 with a vision of providing the best concrete cutting services in the Southeast. They’ve been a CSDA member for 22 years and have three branches: Pensacola, FL, Montgomery, AL and Birmingham, AL. They pride themselves on staying abreast of changes in technology by always keeping tools and equipment up to date. IDS has 30 operators and 21 trucks. They offer a vast range of services including: flat sawing, core drilling, wire sawing, wall sawing, soft-cut sawing, demolition and removal, curb cutting and GPR imaging. IDS also has the ability to cater to smaller jobs such as dryer vents, pet doors and pool decks.

RESOURCES CSDA Cutting Contractor International Drilling & Sawing Inc. Pensacola, Florida Tel: 334-288-2355 Email: marty@idscuts.com Website: www.idscuts.com

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Methods Used Wire sawing, core drilling, slab sawing General Contractor Robins & Morton Group Birmingham, Alabama Tel: 205-870-1000 Email: builders@robinsmorton.com Website: www.robinsmorton.com Demolition Contractor D.H. Griffin Companies Greensboro, North Carolina Tel: 888-336-3366 Email: elwalker@dhgriffin.com Website: www.dhgriffin.com

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Concrete Cases

Clockwise from upper left: Examples in The Hub of carriage models being made in 1910. An excerpt from The Hub announcing Mabel Pittâ&#x20AC;&#x2122;s promotion. The front of the Pitt Carriage Factory Building in Des Moines. Aerial view of Des Moines showing location of the Pitt Carriage Factory building.

Women in Concrete

he 1909 masonry two-story Pitt Carriage Factory Building is located in the East Des Moines Industrial Historic District and has a unique and admirable history. The location donned the first woman-owned carriage works factory in the U.S. in 1910, ten years before women even had the right to vote. Along with its historical significance, the interior features exposed materials like brick walls, wood ceilings and concrete flooring. It has a clean open design and was built with numerous windows for natural light and ventilation.

The building had been recently gutted in a prior failed project under former ownership. The windows, wood flooring, stairs and freight elevator were all removed. The new owners were determined to succeed where previous owners had failed. So, their transformation vision included rehabilitating historical elements of the building while also implementing new modern renovations into the overall design as well. The new owners had two primary end goals: first was to return the property to commercial use by offering retail and office space when the project was completed. Second was to qualify the structure for state and federal historic tax credits. To qualify, they would need to comply with guidelines detailed by the U.S. Secretary of the Interiorâ&#x20AC;&#x2122;s Standards for Rehabilitation. This meant retaining multiple original design elements of the building, including the historic concrete floors.

A Historic Renovation 100 Years in the Making

The Husqvarna DC 5500 vacuum and cracked floors before filling.

Cracks and unevenness in concrete before project.

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Concrete Cases

continued

Elevation changes in concrete before project.

New mixed concrete is used to fill in cracks.

Rehabilitation projects: The National Park Service, which administers the federal historic tax credit program, defines a rehabilitation project thusly: “Rehabilitation is defined as the act or process of making possible a compatible use for a property through repair, alterations and additions while preserving those portions or features which convey its historical, cultural or architectural values. The Rehabilitation Standards acknowledge the need to alter or add to a historic building to meet continuing or new uses while retaining the building’s historic character.”

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The general contractor for this renovation project, Hildreth Construction, contracted CSDA member Royale Concrete to salvage and restore the existing concrete flooring. The job presented a few challenges from the beginning, including 623 linear feet of cracks and joints that needed filling. Careful to follow the standards for rehabilitation, Royale operators mixed and compared samples of concrete to find the best color match for repairs. Once a color was chosen, Royale used a Polyurea joint filler pump to fill in the imperfections and restore the floor to an even and balanced state. The flooring also had several areas with extreme elevation changes from 1 inch to 1 1/2 inches. Royale used a ShaveMaster concrete planer to skillfully level and smooth out the surface, polishing it to a level 3 polish class C medium aggregate. Dust removal and cleanup were managed with a HEPA modified Husqvarna DC 5500 vacuum throughout the duration of the job. Additionally, some parts of the flooring were found to have embedded metal. Royale used a Husqvarna PG 820 grinder to work around these troublesome areas to ensure a thorough and accurate restoration. The concrete was quite porous and soft, so the need for a grout coat was crucial to achieve the desired final product. Royale grouted and densified the 3,700 square feet of floor before honing and polishing with transitional and resin tools. Finally, all 400 linear feet of the edges were hand polished for a precise and smooth outcome. The project followed the U.S. Secretary of the Interior’s Standards for Rehabilitation to the tee and the building retains the original masonry envelope, existing service doors, window openings, roof structure and of course the historic interior concrete flooring. Royale’s part of the project was completed on time and on budget. The President and owner of Royale, Jessica Ledger-Kalen, explained, “When originally selected for the project, I wasn’t aware of the building’s historical details. After finding out that the building at one time housed a woman-owned carriage manufacturer, I was impressed.” That woman was Mabel Pitt. She became the manager of the Pitt-Matthews Carriage Company after her father passed away in

Concrete Cases

continued

The final result after concrete polishing was completed.

1910. She was just 28 years old at the time. The Pitt-Matthews Carriage Company became the only known woman-owned and operated carriage works factory in the United States. Ledger-Kalen expressed her respect for Mabel explaining, “I was 26 years old when I founded Royale Concrete. Most of all, I appreciated Mabel’s comment after assuming management, ‘I can’t see any reason why a woman can’t make as big a success in business as any man. It just takes work-that’s all.’” The Pitt Carriage Factory Building was able to retain its original concrete floors thanks to concrete polishing. Contracting CSDA members like Royale Concrete allow for the preservation of historic architecture that would otherwise be lost with alternative methods like demolishing and re-pouring. Building renovations like these are quickly transforming the East Des Moines Industrial Historic District into a thriving commercial area. The owner is in the process of adding the property to the National Register of Historic Places. REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

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COMPANY PROFILE RESOURCES CSDA Cutting Contractor Royale Concrete Fairfield, Iowa, USA Tel: 888-568-6001 Email: jlk@royaleconcrete.com Website: https://royaleconcrete.com/ Methods Used Concrete polishing General Contractor Hildreth Construction Des Moines, Iowa Tel: 515-971-0124 Email: an@royaleconcrete.com Website: www.hildrethconstruction.com

Concrete in Paradise CSDA Says Mahalo to Hawaii Attendees

Aerial view of the Grand Wailea Resort.

Thanks to all those who were able to attend CSDAâ&#x20AC;&#x2122;s 2018 Convention and Tech Fair earlier this year at the beautiful Grand Wailea Resort in Maui! We had such an enthusiastic crowd of industry professionals join in on the Aloha spirit and festivities, including an impressive number of new members too!

Keynote speaker Paul de Gelder.

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We are thrilled that our Hawaiian event was attended by such a large number of attendees this year! It was the largest group to come together for a CSDA Convention in 10 years! Attendance was up 68% over the 2017 event in Puerto Rico too.

Convention attendees listening intently to keynote speaker Paul de Gelder.

CSDA Board of Directors.

A major highlight of the event was keynote speaker and shark attack survivor, Paul de Gelder. CSDA members and friends were captivated by his story of perseverance and overcoming challenging obstacles in his life to become a successful and inspiring presenter. His mantra, “Improvise. Adapt. Overcome” motivated attendees to look at challenges in their own lives from a new perspective. Many attendees shared their admiration for the speaker noting he was the best they’d seen. “Paul was incredibly engaging and inspirational. One of the best speakers ever and CSDA was lucky to have him!” noted attendee and Board member Dan Dennison. Other informative presentations and panel discussions included a range of topics. Among these were best practices for hiring and employing millennials and managing expectations on concrete polished floors. An impressive job story on cutting a large hydroelectric dam in British Columbia was also on the agenda. CSDA Past President Rick Norland gave an important and

informative presentation on insurance losses and managing insurance risk and IACDS President Julie White said his presentation was one of the best she’d ever seen! Aside from all the business sessions, some excellent networking opportunities and social events were available in Maui too. The ever-popular CSDA Tech Fair was again part of the

convention agenda. Twenty-five leading industry manufacturers and affiliates exhibited at the event, drawing a great crowd, with five first-time exhibitors joining the mix! Attendees took the opportunity to talk one-on-one with vendors in an intimate setting that often can’t be achieved at larger trade shows. Did we mention the resort amenities? The Grand Wailea offered

Contractors visiting one of the 25 vendors at the Tech Fair.

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whale watching tour that offered wild encounters with humpback whales in their natural habitat. CSDA received a lot of great feedback on the event. “What a fantastic turnout we had for the 2018 Convention in Maui! The sun, the sand, the warm tropical breezes; Maui truly was paradise! I had the pleasure of meeting several first-time attendees and encouraged them to become more involved in CSDA,” said Jack Sondergard, CSDA President. Next year, we’re keeping the tropical theme going as the CSDA 2019 Convention & Tech Fair will return Members and friends enjoying the Hawaiian sunset and an exciting luau and fire dancing show!

exquisite luxuries including a lazy river, water slide and an elegant swim-up bar that was popular among attendees. Many attendees mentioned it was the best resort they’d ever stayed at with incredible service by the staff, striking views and an unmatched tranquility. CSDA members and friends also enjoyed a variety of exhilarating excursions including snorkeling, beach activities, hiking and an awe-inspiring

Next Gen and Board members (from left) Dan Dennison, Bill Fisher and Jami Harmon enjoying the gorgeous weather.

to sunny St. Petersburg, Florida at the Renaissance Vinoy Resort & Golf Club, March 11-15. This was the site of the 2015 Convention and there were multiple requests to go back. A very competitive rate was secured, and attendees can arrive early to experience the Firestone Grand Prix Indy Car race on March 8-10 to watch racecar drivers zip through the streets and along the waterfront of downtown St. Petersburg. See you all soon! More details on this, and other events from CSDA, can be found at www.csda.org or by calling the CSDA office at 727-577-5004. CSDA golf tournament winning team (from left to right) Mike Culgin, Bill Runion, Dave Sharamitaro and Dan Dennison.

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Mike Nelson has served on the CSDA Board of Directors for multiple terms. He played an integral part in the CSDA Standards and Specifications Committee development of the standard for the continuous tube thread pattern. Mike has been and remains a member dedicated to the mission of the CSDA. Perhaps most notable, Mike is always friendly, encouraging, upbeat and willing to lend a helping hand. His encouragement to new and existing members has been a tremendous asset towards growth within the concrete cutting industry.

Jack Sondergard (right) presenting Mike Nelson the Lifetime Achievement Award.

Board of Directors photo by Pacific Dream Photography. Aerial view photo courtesy of Grand Wailea Resort. All other photos by Erin Oâ&#x20AC;&#x2122;Brien.

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Safety Counts

Workplace Violenceâ&#x20AC;&#x201D; Arming Managers with Guns? By Mark A. Lies II

s the incidents of workplace shootings tragically continue to mount, society is searching for solutions to stem the tide. The answer is complex involving societal values, constitutional rights, legal liabilities, insurance coverage and a host of other issues. One proposed solution is to allow managers to be armed with firearms to respond in the event of a potential or actual active shooter incident. This article is intended to identify the potential practical advantages, disadvantages and legal liabilities, and also offer some recommendations while the legal landscape is constantly evolving with new proposed legislation.

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ADVANTAGES OF ALLOWING MANAGERS TO BRING GUNS TO WORK There could be a limited advantage to allow managers to bring guns (assume this is a handgun) to work. The manager would have to have a Firearm Owner Identification (FOID) card to carry a firearm along with a Concealed Carry Permit (CCP) to carry a concealed firearm if the firearm will be concealed. If the manager has these documents there should be some confidence that they are aware of and trained in the use of a firearm. In addition, the managers should be required to attend credentialed Active Shooter or other

equivalent training and obtain certification of successful completion. In the event of an incident, the manager would have a firearm available that could be utilized to cause a potential shooter to surrender their weapon and disarm them or to shoot the potential shooter to disable them from further activity. DISADVANTAGES OF ALLOWING MANAGERS TO BRING GUNS TO WORK The potential disadvantages are many. Initially, the manager is not a sworn law enforcement officer, so the legal immunities that such officers have for liability to

themselves and the employer will not attach. While the manager certainly has his/her right under the Second Amendment to carry the firearm, assuming necessary permits, such permits do not authorize the manager to bring the firearm into the workplace premises itself or the use of force. Rather, the manager would be relying upon his/her inherent right to selfdefense which only permits reasonable use of force to protect the manager or others. In the event of an incident where the manager utilizes the firearm to subdue or cause injury to an active shooter or innocent bystander, the issue will then become whether the manager exceeded the scope of reasonable force and acted negligently or recklessly. In both cases there could be liability for civil damages for personal injury, wrongful death, intentional infliction of emotional distress and, in the case of reckless conduct, punitive damages to any individual who suffers physical or emotional harm. If the manager acted in a reckless manner, there could also be criminal liability. Because the manager would be acting as an agent of the employer, there would be potential agency liability for the employer. The employer may not be able to purchase liability insurance to cover this risk and would potentially be uninsured for any damages. HOW WOULD A POLICY ALLOWING GUNS BE CRAFTED AND COMMUNICATED? The employer’s policy would have to be carefully crafted to comply with applicable Federal, State and local laws and ordinances regarding permitting an individual (manager) to bring the firearm within the workplace as described above. It would also have to require the manager to have all current permits or licenses. The policy would also have to define the circumstances under which the manager would be permitted to use the firearm which then raises the issue of defining reasonable use of force in situations which are not predictable and require the manager’s judgment on a split-second basis. This type of instantaneous decision making is the challenge faced by seasoned law enforcement officers on a daily basis and cannot reasonably anticipate the appropriate response for every situation.

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IMPACT OF POLICY ON WORKPLACE ENVIRONMENT Such a policy could have varying impacts on employee morale. The manager who is authorized to use the firearm may feel very secure, especially in regards to his/her own self-defense. Other employees may likewise feel some sense of security because of this policy, although other employees may feel insecure due to concerns about the capabilities of the manager to properly react in an emergency and whether, if the manager overreacts and discharges the firearm improperly, they may become an innocent bystander shooting victim. ADDITIONAL SCREENING FOR THE MANAGER Since there is no statutory right to carry a firearm into the employer’s physical premises, although employees who have a valid CCP can bring it onto the parking lot but it must remain in a locked container (vehicle trunk, glove box, or weapon container) out of sight, the employer should seriously consider additional screening. For example, confirming the manager’s prior experience with a firearm in the military or law enforcement. If the employer so desires, it could conduct a background check complying with the Fair Credit Reporting Act (FCRA) to determine if the employee has any prior history of civil or criminal activity involving violence or the use of a firearm. In addition, although there would certainly be potential Americans with Disabilities Act (ADA) issues, an employer might consider an evaluation by a mental health professional regarding the employee’s ability to react with a firearm in an emergency situation. Such psychological evaluations are routinely conducted for potential law enforcement officers across the country. POTENTIAL NEW LAWS Because of the current drive to enact new Federal and State laws, it is clear that employers will have to keep informed on such changes in order to stay in compliance. In addition to the general statutes that permit an individual with a valid CCP permit to bring a firearm on to the parking lot, there have already been several proposals to increase liability for the employer if a qualified and permitted employee is not allowed to carry his/her firearm into the workplace and use it for purposes of his/her self-defense and the employee sustains injury.

RECOMMENDATIONS If the employer decides to permit managers to be armed within the workplace, it should carefully consider the following factors: • confirm all Federal, State and local laws and ordinances that apply to licensing and qualifying a manager to carry a firearm into the workplace itself and utilize it in the workplace • ensure that any manager who is permitted to carry a firearm in the workplace has successfully completed all required training and that documentation is obtained and kept current • conduct an exhaustive background check of the manager to confirm that there is no prior civil or criminal history of violent behavior or mental or emotional health conditions that would impact the manager’s ability to responsibly carry the firearm and utilize it properly within the limits of reasonable use of force in an incident • develop a written policy which incorporates the foregoing elements as well as any generally recognized industry practices for such activity including Active Shooter protocols • confirm whether the employer’s general liability and workers’ compensation insurance will be applicable to the potential risks associated with the employer’s policy CONCLUSION As stated, authorizing managers to be armed with and to utilize a firearm in the workplace can have advantages as discussed above although there are many potential risks that must be considered. If the employer develops and maintains a written policy that incorporates the foregoing elements it should be able to address the legal issues arising from pursuing such a course of action. Mark A. Lies, II is an attorney in the Environmental, Safety and Toxic Tort Group in the Chicago office of Seyfarth Shaw LLP. He is a partner who focuses his practice in the areas of products liability, occupational safety and health, workplace violence, construction litigation and related employment litigation. Lies has contributed many articles to Concrete Openings and can be contacted at mlies@ seyfarth.com or 312-460-5877.

C O N C RET E O P EN I N G S | 2 3

Concrete Cases

Sparks fly at night as the Texas Curb Cut Barrier Wall Machine slices into the 24-inch thick barrier.

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NIGHT CUTTERS

Slicing Seven Miles of Concrete in the Middle of Oncoming Traffic

he Dallas North Tollway connects motorists between downtown Dallas and cities in Collin, Denton and northern Dallas counties. It is a 32-mile, six-lane, limited access expressway passing through and along the cities of Dallas, Highland Park, University Park, Addison, Farmers Branch, Plano and Frisco. A section of the highway had seven miles of an existing concrete barrier that ran down the center of the tollway. The operators of the tollway, North Texas Tollway Authority, wanted to remove the concrete barrier and replace it with a taller one that would help protect motorists in the case of automobile accidents. The taller barrier will be much safer, particularly for larger vehicles.

The general contractor, Austin Bridge & Road, contracted demolition contractor Lindamood to remove and haul away the old barrier to make way for the new one. Lindamood originally considered demolishing the rail by crushing it in place, but this presented a challenge with the traffic schedule. Due to the fact that all tollway lanes would open back up to traffic each morning, that meant Lindamood would have to crush the barrier, load it and clean the highway all in about 6 hours; not to mention mobilizing and demobilizing all of the equipment each night of the job. It was determined that this method would only get about 100 linear feet of barrier demolished, loaded and cleaned

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A 100,000-pound excavator and manual clamp hauling off a 30-foot long section.

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Operators working within the zipper barriers on either side of the tollway.

up per night. After looking at the project schedule and job-site limitations, it was determined a different method was needed. It was then that Lindamood decided to contract CSDA member Texas Curb Cut to utilize diamond tools to help complete the project. This would expedite productivity, make the clean-up process easier and reduce the amount of equipment needed each night. It was estimated that more than 5,000 linear feet of barier could be demolished per day by using concrete cutting versus 100 linear feet using excavators and hydraulic crushers. This project would require Texas Curb Cut to cut seven miles of 24-inch thick barrier mostly at night and on a busy

Close-up of the controls on a Texas Curb Cut Barrier Wall Machine.

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tollway with limited space. This understandably raised some safety concerns which needed to be addressed before the job was started. Implementing safety guidelines was approached in a few different ways. The Dallas North Tollway is very busy, even in the middle of the night, so to ensure operator safety, there were concrete zipper barriers constructed, closing off one tollway lane in each direction for work to take place within. In addition, multiple crash attenuator trucks and off-duty police officers were brought in to ensure the safety of operators working close to oncoming traffic. Finally, everyone was required to wear class III safey vests, hard hats, eye and hearing protection. Texas Curb Cut used their very own self-manufactured Barrier Wall Machine â&#x20AC;&#x153;Aâ&#x20AC;? with 28-inch Husqvarna blades to slice through all the sections of the 24-inch thick barrier. They started by sawing into the concrete horizontally along the bottom, releasing the barrier from the tollway and creating 15,000-pound sections that could be lifted and loaded into demo trailers. After a one-mile section was cut, Lindamood began mobilizing and picking up the 30-foot sections with a 100,000-pound excavator and manual clamp. The sections were then placed in a demo trailer and hauled off and dumped at the concrete crusher facility to recycle 100 percent of the

Husqvarna blades being used to cut the barrier into 20-foot long sections.

Concrete Cases

continued

concrete. Once all the barrier of a one-mile section was removed, the road was then cleaned in preparation for Austin Bridge & Road to cast a leveling pad in place and set the new 42-inch precast barrier pieces. The process was then repeated with the next mile-long section. One of the biggest challenges during a job like this was having to mobilize and demobilize all the equipment every night, as well as complete the work with only one lane closed in each direction. Another challenge was that the roadway must be cleared of all debris each night because the area that operators were working in opened back up to traffic the next morning. Conveniently, the use of concrete cutting addressed many of the challenges by increasing safety, reducing downtime and decreasing noise, dust and debris. The sections of barrier could have been crushed in place by excavators and hydraulic crushers with production rates of only 100 linear feet removed per night. However, diamond cutting offered production rates of up to 5,725 linear feet removed per 20-hour period. Additionally, diamond tools helped maintain structural integrity, made clean-up easier, reduced labor costs, limited lane closures and allowed for the cutting of some heavily reinforced concrete. A true win-win! Despite the limited space and access, late hours and quite a bit of rain, the project remains on schedule and within budget. Texas Curb Cut was extremely satisfied with the project and so was the general contractor. “Having Texas Curb Cut perform the sawing of the existing barrier has played a major role in keeping the project on schedule,” said Boone Massey of Austin Bridge & Road, “and having the barrier sawed horizontally instead of the traditional way to demolish has left a much cleaner and easier product for us to revamp for the placement of precast wall sections.”

Close up of Husqvarna blade in motion.

Once all the original barriers are removed Austin Bridge & Road plans on performing a mill and overlay of 365,571 square yards over the seven miles between Harvest Hill Road and the Lemmon Avenue Bridge. The project is expected to be completed in June 2018 and will offer safer road conditions for motorists commuting on the Dallas North Tollway. REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

COMPANY PROFILE Texas Curb Cut is a full service concrete cutting company with locations in Round Rock, Bryan, and San Antonio. With 21 years of experience and CSDA members for the last 8 years, Texas Curb Cut has built a reputation of getting jobs done safely and on time. They offer an extended list of services including: barrier wall demolition, curb cutting, GPR services, wall sawing, core drilling, wire sawing and others.

RESOURCES General Contractor Texas Curb Cut / Texas Cutting & Coring Irving, TX Tel: 214-596-7300 Sawing Contractor Texas Curb Cut Round Rock, TX Tel: 512-447-4477 Email: ray@texascurbcut.com www.texascurbcut.com Demolition Contractor Lindmood Irving, TX Tel: 972-721-0898 Texas Curb Cut operator showing off the selfmanufactured Barrier Wall Machine “A”.

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Methods Used Curb cutting, barrier wall demolition

Who is eligible for Certification? A company must meet the following criteria to achieve certification: CSDA's Company Certification Program is a company audit program specifically for sawing and drilling contractors. Developed by CSDA's Certification Committee, the program provides owners, architects, engineers, general contractors and government officials with a valuable prequalification tool, improves the knowledge and skills of cutting contractors and enhances their public image.

• Meet the basic safety and insurance requirements of the industry • Undertake sound operational and financial best practices • Provide evidence it has took part in basic training or certification programs to better its employees and the company as a whole • Successfully pass a written application review

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IACDS President’s Insight

he CSDA Convention and Tech Fair at the Grand Wailea Resort in Maui this past March was a huge success! First, I’ll talk about the numbers which were very impressive indeed. CSDA had the highest number of attendees in a decade—up 68 percent from the 2017 meeting. Tech fair exhibitors were up by 25 percent and there was a total of 15 new member companies in attendance as well as a record number of contractor companies too. But those stats only tell you so much about the meeting. As I am sure you all now know, I am a big believer in enjoying what you do. I love our industry and I enjoy spending time with other people who understand all the ups & downs and the joy & pain of what our industry brings. I don’t know about you, but very few people outside of the concrete sawing and drilling industry really understand what we do, so when we all get together it’s great to be able to discuss what’s going on in our industry…and you learn a thing or two. There was a great presentation on insurance at the convention… no, stay with me…it really was a great! If, like me, you shudder at the mention of insurance – or lawyers or bank managers—then please carry on reading. Insurance is, like death and taxes, one of the certainties of life. My outlook on it used to be to pay my premiums, be angry but then try to forget about it. That changed recently, and the fantastic presentation was very much in line with my thinking on the topic. You see, our insurance brokers, bank managers and lawyers don’t really understand exactly what we do. Why would they? We are such a specialized industry that it is almost impossible to expect them to have a full grasp on the type of work we do daily. My advice is to get closer to them. Don’t think of them as the necessary evil. See how you can use them to your advantage to make your life better and make the business run more smoothly. When it comes to insurance, keep your broker and insurers fully informed. Be at pains to show them the work you do and the lengths you go to so that you comply with all the rules and regulations on health and safety. It’s about changing your frame of mind from being reactive to being proactive. It can get your premiums down—which goes straight to the bottom line—and, also, gives you further reason to make sure that all your risk and training processes are 100 percent up to scratch. Then, if you’re faced with a claim against you, you will have people who better understand you and your business and they’ll be more willing and able to give you the right support and advice. The easiest thing to do with any claim is to just say “pay them off” but, with an educated professional services team around you there is the option—if you feel you are in the right—to fight it and win. After all, that’s in your interests, the industry’s interest and those of the insurer’s too. Any claim stays on your file for three years and, therefore, affects future premiums which impacts on the costs of business and pricing

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JULIE WHITE IACDS President structures. It makes total sense to work with your insurers to avoid claims if possible. The same goes for the bank, your lawyers and any other professional services organisation you use. Most will not have specialist knowledge about our sector the way we do, but if you get to know them and make sure they get to know your business, it will create more opportunity for reduced costs and improving the bottom line. I think it’s this sort of shared knowledge and insight that make attending the conventions and meetings so important and it’s why being part of your trade associations is so crucial. We can all learn from one another and, together, make a much stronger industry across the globe!

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Concrete Cases

GPR Takes a Flood-Damaged Pier

From Steer Clear to Have No Fear

The Ottawa River at dangerously high levels in spring 2017.

uring the spring of 2017 in southern Quebec, Canada there was unprecedented rainfall and widespread flooding. Rivers in the Montreal area burst their banks and submerged entire communities. In one area, a pedestrian pier was completely submerged under three feet of water for two weeks.

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After the flood waters subsided, there was visible damage to the pier. Several areas with interlocking brick walkways had collapsed, indicating the presence of voids. Inspection of the vertical walls of the pier also revealed cracks, further increasing concern that additional structural substrate had washed away. Local municipal officials were concerned that the pier may have had more voids that could collapse, causing injury to pedestrians. So, the municipality contracted

A bridge over the Ottawa River during the 2017 flooding.

Surface of pier showing concrete and interlocking brick surface materials and a void.

The LMX200â&#x201E;˘ by Sensors & Software being used to collect 12,500 feet (3.8 km) of data on the damaged pier.

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a Quebec-based geophysical service-provider to scan the pier and report any problem areas. The contractor for this job, CSDA member GEORADARDetection, Inc., had initially considered using electromagnetic induction to look for the voids. However, there were many metallic obstacles on the pier, including garbage cans and benches, that would interfere with the results. Instead, they decided to use Ground Penetrating Radar (GPR) since the results would not be impacted by these metallic objects. Given the odd shape of the pier and the many obstructions, collecting GPR data in an XY grid pattern proved to be quite difficult. So, the contractor decided against laying out grids, and instead collected data using GPS for positioning GPR data. They used the LMX200â&#x201E;˘ GPR tool by Sensors & Software to map and survey which allowed them to cover the full area of the pier much faster. Data was collected in a series of tightly spaced straight lines, using marks on the pavement to ensure consistent spacing, averaging about 18 inches (0.4 m) between the lines. With two technicians onsite, a total of 12,500 feet (2.4 miles or 3.8 km) of data was collected in just four hours. Once data collection was complete, they used the new SliceView-Lines module in the EKKO Projectâ&#x201E;˘ GPR processing software from Sensors & Software to generate depth slices through the pier. The contractors knew that the large boulders

Aerial view of the pier showing many obstacles.

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GPR data collection path. GPS positioning allowed for faster and more complete area coverage than an XY grid.

below the surface, used as the main structural component for the pier, would not have been washed away by the floodwaters. However, there was concern that shallower parts of the pier underlain by finer sand and gravel could have been flushed away. When reviewing the depth slices, high-amplitude GPR reflections can be an indication of voids. This occurs because air or water-filled voids provide a large contrast with the material above, creating a strong GPR reflection. Figure 3 shows the 1-foot (0.3 m) depth slice with strong reflectors in reds and yellows and weaker reflectors in blues and greens (the three areas that had already collapsed at the surface are indicated). The GPR data showed some interesting phenomenon observed during the survey. For example, the deepest GPR penetration occurred on the parts of the pier covered with interlocking brick, while areas with concrete at the surface had much shallower penetration; this is seen in the GPR line in Figure 5. It is also shown by the strong (red) GPR signals on the 5.5-foot (1.7 m) depth slice in Figure 4. These observations are not surprising as concrete has relatively high electrical conductivity and attenuates the GPR signal before it can travel to depth. The sand, gravel, cobbles, and boulders under the interlocking brick have much lower

This 1-foot (0.3 m) depth slice shows already collapsed sections and additional areas with possible voids as strong GPR reflectors display in reds and yellows.

A 5.5-foot (1.7 m) depth slice showing strong reflections from boulders and cobbles deep below the pier, under the interlocking brick.

A typical GPR line across the pier. GPR signal penetration varies depending on whether the surface is covered with interlocking bricks or reinforced concrete. GPR signals are stronger and penetrate deeper in areas with interlocking brick at the surface due to the lower electrical conductivity when compared to concrete.

electrical conductivity, allowing for the GPR signal to travel much deeper before it is attenuated. Based on the complete GPR scan of the pier, the service provider quickly identified the shallow areas with strong GPR reflections indicative of possible voiding and provided this in a report to the municipality. From the findings, the municipality targeted repairs to the key areas of concern on the pier. Where possible voids were identified within two feet of the surface, they removed the interlocking brick and added fill to fix the shallow voids. To address any risk of voids deeper in the structure, they injected concrete into the pier wall where the vertical cracks were visible. By using GPR, the municipality quickly and costeffectively assessed the internal damage done by the severe flooding and could take corrective actions before any injury to the public occurred.

COMPANY PROFILE RESOURCES GEORADAR-Detection Inc. is a new member of CSDA this year (2018) and is based in Laval, Quebec, Canada. The company was founded 29 years ago. It has four employees and offers various services including concrete structure scanning, floor slab scanning, pipe inspection, re-bar corrosion mapping and others. GPR Imaging Contractor GEORADAR-Detection, Inc. Laval, Quebec, Canada Tel: (418) 262-1263 Email: info@georadar.ca Website: www.georadar.ca/en/ Methods Used GPR Imaging

REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

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Tech Talk Tech Talk is a regular feature of Concrete Openings magazine, focusing on equipment, maintenance and technical issues of interest to concrete cutting, polishing and imaging contractors. Readers wishing to have a particular subject addressed can call or email CSDA with their suggestions at 727-577-5004 or pat@concreteopenings.com.

The OSHA Silica Rule— What the Concrete Renovation Industry Needs to Know

n March 25, 2016, the Occupational Safety and Health Administration (OSHA) issued a final rule on respirable crystalline silica dust. The new rule updated regulations established more than 40 years ago and introduced requirements for reducing an employee’s exposure to silica dust. The final rule is written as two standards: one for construction and one for general industry and maritime.

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OVERVIEW Under the existing silica rule established in 1971, employers were responsible for testing exposure and finding ways to limit exposure below ~250 μg/m3 averaged over an 8-hour workday. The new standard aligned the permissible exposure limit (PEL) for the construction industry and general industry to the NIOSH recommended limit of 50 μg/ m3 averaged over an 8-hour workday (time

weighted average, or “TWA”—a level already adopted by several European countries. According to OSHA, the new PEL is expected to prevent hundreds of silica-related deaths and illnesses each year—including 900 new cases of silicosis. In an effort to increase the ease of compliance, OSHA included a layer of flexibility for determining the control methods needed to protect employees that was not a part of

the 1971 standard. Under the new OSHA construction standard, OSHA offers three methods an employer can choose from to demonstrate compliance and assess employee exposure. An employer can choose from one of the three or any combination of the three to ensure their employees are protected. The options are: 1. Table 1: a table of pre-defined tasks and specified control methods available in the market today 2. Performance or ‘Objective Data’: assess exposure by providing objective data proving the control method used reduces silica dust exposure below the permissible exposure level (50 μg/m3) 3. Scheduled Air Monitoring program: assess exposure by implementing a scheduled air monitoring program to ensure employees are not exposed above 50 μg/m3 OPTION 1: TABLE 1 Table 1 lists tasks and equipment-control methods that OSHA has determined will reduce exposure to acceptable levels. The Table includes requirements for when a task is performed for different periods of time and in different environments. An employer that

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fully implements an equipment-control option on Table 1 for a task will not have to perform air monitoring for that task. Table 1 can be viewed in full on the CSDA website. OPTION 2: PERFORMANCE OR ‘OBJECTIVE DATA’ OSHA allows employers to use objective data to provide evidence that the control method(s) in place reduces the exposure level below 50 μg/m3 over an 8-hour TWA work period. Objective data can be air monitoring data compiled by the employer or a third party, such as universities, trade associations, or manufacturers, which is sufficient to accurately characterize exposure. The data relied on must reflect conditions that are similar or worse than the employer’s current worksite conditions. OPTION 3: SCHEDULED AIR MONITORING If the employer prefers to generate their own exposure data, the “scheduled monitoring option” can be used. When this option is used, an employer is required to implement an air monitoring program when workers are exposed over the Action Level (AL) of 25 µg/m3 over an 8-hour TWA work period and implement control methods.

In addition to the requirements related to assessing and controlling exposures, all employers covered by the standard must have a written plan that identifies silica-generating tasks, the engineering controls and work practices that will be used for each task, respiratory protection (for exposures above the PEL), housekeeping practices used to limit exposures, and procedures that will be followed to restrict access to areas where silicagenerating tasks will be performed. The “restrict access” requirement is intended to eliminate exposure of unprotected bystanders. The plan must be implemented by a “competent person.” The competent person must 1) be capable of identifying existing and foreseeable respirable crystalline silica hazards, 2) have the authority to take prompt corrective measures to eliminate or minimize silica hazards, and 3) have the knowledge and ability to implement the exposure control plan. Employers are also required to follow a medical surveillance plan for workers that are required to wear a respirator—under the new standard – for 30 or more days per year. Under the surveillance plan, each worker that meets the requirement for testing must be offered an exam

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Tech Talk

continued

1. Table 1: a table of pre-defined tasks and specified control methods available in the market today 2. Performance or ‘Objective Data’: assess exposure by providing objective data proving the control method used reduces silica dust exposure below the permissible exposure level (50 μg/m3) 3. Scheduled Air Monitoring program: assess exposure by implementing a scheduled air monitoring program to ensure employees are not exposed above 50 μg/m3 OPTION 1—TABLE 1

within the first 30 days of the assignment, and every three years after the initial exam if the worker continues to meet the trigger for the exam. A Physician or Other Licensed Health Care Professional (PLHCP) must conduct the exam. Within 30 days of the exam, the employer must ensure: (1) the PLHCP explains the exam results and gives a “medical report” to the employee; and (2) the PLHCP provides the “medical opinion” to the employer. The medical opinion may trigger limitations on respirator use, and to the extent that the employee agrees, limitations on exposure to respirable silica and/or examination by a specialist.

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MEASURING AND CONTROLLING EXPOSURE The new standard requires employers to ensure their employees are not exposed to silica above the Permissible Exposure Limit (PEL). Before and during the OSHA rulemaking process, the construction industry told OSHA that conducting air monitoring (collecting and analyzing the results) is not always practical due to the short duration of some tasks, and the fact that air monitoring can be time consuming and costly. To address this concern and provide contractors with greater flexibility, OSHA offers three methods an employer can choose from to demonstrate compliance and assess employee exposure:

The Table 1 option eliminates the need for air monitoring if a contractor follows and properly implements the equipment and task-controls listed in the table. There are 18 recommended product solutions and controls listed in the Table, reflecting common silica-generating construction tasks and corresponding control methods that have been documented to be effective. The table notes when and if respiratory protection is required. The respiratory protection requirements are linked to the length of time a task is performed (4 hours or less or more than 4 hours.) OSHA only included tasks and controls for which it had sufficient data to demonstrate that workers would be protected if the controls were maintained and used properly. When a contractor properly implements a solution from Table 1 – in other words maintains the equipment and ensures that employees use it as directed by the manufacturer – employers do not have to provide objective data or conduct air monitoring. This is the easiest way for contractors to comply with the standard. The following is an example of a Table 1 entry. In this example, if a worker is performing a silica-generating task outdoors for 4 hours or less, such as cutting concrete block, using a handheld power saw with an integrated water delivery system, and the tool is maintained and used in accordance with the manufacturer’s specifications, the worker would not be required to wear a respirator and the contractor would be in compliance with paragraph c. If the worker is performing the task indoors, he or she would be required to wear the respiratory protection specified in the Table for the duration of the task. No air sampling would be required for either scenario. If an Equipment/Task and Control method is not listed in Table 1 or a contractor chooses not to rely on Table 1, they can follow the options in section (d) “Alternative exposure

control methods” to ensure that their employees are not exposed above the PEL. For either option, the employers must use engineering or work practice controls to bring exposures down to the PEL or lower. Where work practices or control methods do not bring exposure down to the PEL, the employer must also provide respiratory protection to workers engaged in the task. OPTION 2—PERFORMANCE OR ‘OBJECTIVE DATA’ Under this option the employer can use any combination of air monitoring data or objective data to show that a task when performed using a specific equipment/control method under specific working conditions will not expose workers above the PEL. This “objective data” can be compiled from exposure data the contractor has generated from their own air monitoring efforts or data generated by the employer or a third party, such as universities, trade associations, or manufacturers. If objective data is used, it must closely resemble or have a higher exposure potential than the employer’s workplace conditions, including the processes (e.g., cutting, grinding, etc.), the type of silica containing material being used (brick, concrete, etc.), the control methods (e.g. water, vacuum), work practices, and environmental conditions (windy, dry, etc.), Employers also have the option of following the exposure monitoring requirements found in all of OSHA’s previous standards. OPTION 3—SCHEDULED AIR MONITORING OPTION If an employer chooses to perform scheduled air monitoring for a task, they must follow the schedule outlined in the standard: • If initial results indicate exposures are below the action level (25 μg/m3), no additional monitoring is necessary. • If the monitoring results indicate exposures are above the action level, but below the PEL, additional monitoring would be required within 6 months. • If the exposure monitoring indicates exposures above the PEL, additional monitoring must be repeated within 3 months. • If subsequent monitoring (not the initial monitoring) indicates exposures are below the action level, the employer must repeat the monitoring until two consecutive measurements (taken 7 or more days apart) are below the action level. At that point, the employer can discontinue monitoring.

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Just like with objective data, the conditions of air sampling must closely resemble typical (or higher exposure) conditions. It is important to note the air monitoring samples must be analyzed in accordance with the procedures laid out in Appendix A of the standard, which specifies the use of OSHA, NIOSH or MSHA methods, and that the analysis be conducted by an accredited laboratory that follows specific quality control procedures.

The information provided in this article is reproduced in part from ‘Understanding the new OSHA standards for Silica dust in the construction industry’, from the Silica Consortium at Hilti headquarters, Oct. 24, 2016, courtesy of Center for Construction Research and Training (CPWR). The full whitepaper, as well as other resources on the OSHA Silica Standard Rule can be found on Hilti’s website www.hilti.com or on CSDA’s website on the Rule at www.csda. org/page/SilicaInfo.

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Core Health Industry Bits continued

H20—What’s the Magic Number? By Erin O’Brien

ixteen glasses a day. Eight cups a day. Forty percent of your body weight in ounces. Drink when you’re thirsty. Drink when you’re hungry. Drink when you’re sweating. Don’t drink coffee or soda. Don’t drink tap water. Don’t drink bottled water. Don’t drink carbonated water. Does anyone else feel like there is no right way to drink the right amount and right kind of water? How much is enough? How much is too much? With summer quickly approaching (well, hopefully by the time you read this), hydration and dehydration will again be a hot topic (get it? Summer = hot? Sorry, I’ll stop). I had questions about my own water intake, so I did the hard work for you on what and when you should drink. Our bodies are made up of about 60 percent water. This water is in our blood, muscles, connective tissue, organs and interstitial space (I’ll buy you a glass of something other than water if you can tell me what that is). Our bodies have also developed over time an amazing mechanism to tell our brains when we are thirsty and need to drink more water. However, with everyone’s busy lives, many of us have ignored that trigger too many times and become dehydrated, meaning our bodies do not contain enough water to function optimally. When we are dehydrated, several things can happen. Mood and concentration can become impaired, headaches become more common and severe, physical performance can suffer, whether at the gym or on the jobsite, and endurance is reduced; meaning we cannot sustain physical or mental activities for extended periods of time. Dehydration happens when fluid intake is less than fluid output. This can happen during intense

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workouts, in hot weather, in dry climates, during illness, while breastfeeding or after drinking substantial amounts of alcohol. Concrete cutting professionals working in hot, dry weather need to be especially vigilant. Water loss of as little as one percent of your body weight can cause mild dehydration. We’ve covered the negatives, so let’s focus on the positives! Water serves many vital functions and provides our bodies with a great deal of benefits. Besides keeping us alive, studies have shown the benefits of water include increased metabolism, weight loss, prevention of illness, maximizing physical performance, increased energy and brain function, headache prevention and the ever-popular hangover cure. These are covered in detail below: INCREASED METABOLISM Some studies have shown that drinking 500mL (17 oz.) of water can temporarily (up to 90 minutes) boost metabolism by 24-30 percent and drinking 2 liters (68 oz.) in one day can increase energy expenditure by about 96 calories a day. So just by drinking enough water,

theoretically you could lose an extra pound a month or 12 pounds a year! Cold water is best for this, because the body then has to burn calories to warm the cold water to body temperature. WEIGHT LOSS Drinking water 30 minutes before a meal has also been shown to reduce the number of calories consumed during a meal, because your stomach has less room for food. One study showed that dieters who drank 500mL (17 oz.) of water before meals lost 44 percent more weight over a period of 12 weeks compared to those who didn’t. PREVENTION OF ILLNESS Increased water intake has been shown in some studies to lower risk of developing bladder and colorectal cancer, kidney stones and constipation. MAXIMIZING PHYSICAL PERFORMANCE Athletes and those working in the construction field can lose up to 6-10 percent of their water weight via sweat

during workouts or on the jobsite. This can lead to altered body temperature control, reduced motivation, increased fatigue and make physical activity feel more difficult, both physically and mentally. Optimal hydration can prevent this from happening and may even reduce the oxidative stress that occurs during intense physical activity. INCREASED ENERGY AND BRAIN FUNCTION Even mild dehydration of 1-3 percent of body weight can impair many aspects of brain function. Studies have shown that in young men a fluid loss of 1.6 percent was detrimental to working memory and increased feelings of anxiety and fatigue. This is about 1.5-4.5 pounds on a 150-pound person. This fluid loss can easily occur through normal daily activities and is intensified during exercise or working in high heat. HEADACHE PREVENTION AND TREATMENT In some people, dehydration can trigger headaches and migraines. Water can relieve these headaches or make them less severe and shorter. So, your headache could be caused by not drinking enough water! No Advil needed. HANGOVER PREVENTION Most of us have dealt with a hangover or twenty-six. Maybe those are behind you now, but if they are not, water is your new best friend. It’s no secret that many of the symptoms of hangovers, like thirst, fatigue, headache and dry mouth, are caused by dehydration. While dehydration is not the main cause of hangovers, it is one factor that is easily controlled. A good way to reduce hangovers is to alternate a glass of water with each alcoholic beverage you consume, and drink at least one really big glass of water before you go to bed. Water, however, is not the only way to stay hydrated. One myth is that caffeinated drinks like coffee or tea don’t count towards staying hydrated because caffeine is a diuretic. While caffeine is indeed a diuretic, the effect of these beverages is very weak and fairly insignificant in

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causing your body to dehydrate (This does not apply to energy drinks like Monster, Rockstar, Red Bull, etc. These drinks contain a much higher amount of caffeine, along with additional stimulants. See the March 2013 issue of Concrete Openings for more info on “The Dangers of Energy Drinks”). Additionally, most foods are loaded with water, especially fruits, vegetables and even meat, fish and eggs. So, in normal conditions, your daily diet is likely providing you with enough water to stay hydrated. Of course, an extra glass or two is never a bad idea. Another water alternative, and one that has been getting a lot of traction recently is carbonated water. Also known as sparkling water, club soda, seltzer water and fizzy water, this is water that has been infused with carbon dioxide gas under pressure. With the exception of seltzer water, they usually have salt added to improve the taste and sometimes other minerals are included. Natural sparkling mineral waters like Perrier and San Pellegrino are different because these waters are captured naturally from a mineral spring and tend to contain minerals and sulfur compounds. These waters are often carbonated as well. Tonic water is a form of carbonated water that contains a bitter compound called quinine, along with sugar or high-fructose corn syrup (we’ve discussed high-fructose corn syrup before— stay away). Concerns about carbonated water in the past are that it is acidic and could wear away the enamel on your teeth and decrease bone density. Studies have shown those to be myths, but there are actually a few benefits of drinking carbonated water. Some people are addicted to sugary sodas—but maybe it’s just the fizzy taste they like? Sugary beverages, whether carbonated or not, can destroy tooth enamel and reduce bone density. So, an alternative without

the sugar is a better option. Carbonated water may also increase feelings of fullness, because the carbonation may help food to remain in the first part of your stomach longer, which triggers a sensation of being full and can reduce the number of calories you consume. Author’s note—I recently invested in a Soda Stream and it’s one of the best purchases I’ve ever made. I save money on buying expensive carbonated water and I cut down on all those aluminum cans used. I recommend it to anyone who likes carbonation. (This note was in no way sponsored by Soda Stream – but call me guys, I’m happy to endorse). So, how much water is best? There is no one size fits all recommendation. Everyone is different, and your climate, diet, activity level, age and what you drink are all factors. The solution is simple. When you are thirsty, drink. When not thirsty anymore, stop. During high heat and exercise, drink enough to compensate for the lost fluids. That’s really about it! Older adults and children should drink a little more. Listen to your body, and don’t ignore your thirst mechanism. Erin O’Brien, MS, ATC is a Certified Athletic Trainer and Marketing Director for O’Brien International, the association management company that manages the Concrete Sawing & Drilling Association. O’Brien received her Bachelor of Science degree in Athletic Training from Ohio University and her Master of Science degree in Applied Physiology and Kinesiology from the University of Florida. She is also a Certified Level 2 CrossFit Instructor and member of CrossFit9 in St. Petersburg, FL. She is a regular contributor to Concrete Openings magazine. She can be reached at erin@ csda.org or 727-577-5002.

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The Business of Business

From Scapegoats to Saviors: How Millennials are Changing the Face of Business by Bill Gibron

very generation has its scapegoats —usually young, outspoken, and often misrepresented as the reason behind all of society’s ills. From juvenile delinquents in the ‘50s, hippies in the ‘60s, and yuppies in the ‘80s, we have given the younger generation snarky names and reduced them down to culture stereotypes for decades. In 2018, the main culprits are known by many monikers like hipsters, Generation Y, echo boomers - but they all fall under one main label —millennials. Indeed, by 2025, they will make up 75 percent of employees worldwide, changing the way we work and the workplace forever. Recent reports suggest that these young

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workers want more than a paycheck. They want engagement and upward mobility. They want to be the difference, to work in an environment that makes the world a better place, not just earns a profit. They will gladly sacrifice place for principles and aren’t beyond undermining the status quo to get their way. Now that’s quite the reputation! Forbes’ contributor Larry Alton makes it very clear that their impact will be far from passing. “The millennial generation we’ve been tracking, criticizing, and celebrating for years is undergoing a dramatic shift,” he says. “They’re no longer the youngest generation on the scene, and they’re starting to mature

into older and higher-ranking professionals.” This means they will bring their values to the boardrooms and cubicles of the modern company, and with them, a whole new way of doing business. Currently, millennials hold about 20% of the leadership roles out there. That number will continue to grow. They are also aware of the generation coming up after them and plan new approaches to achieve their employment wants and needs. Often regarded as champions of inclusion and diversity, they will forever alter the face of corporate culture, while settling in and attacking challenges like automation, A.I. and online marketing.

Not everyone is convinced of the possible benefits. The Telegraph UK published an article citing Britain’s CBI, which draws some very daunting conclusions: “The latest study of business leaders reports that a third of companies are dissatisfied with graduates’ attitude to work and ability to self-manage. Text-speak and Twitter reductionism is also letting our young hopefuls down, a similar number complained, with literacy and numeracy skills so poor among university leavers, that they have to be topped up in the workplace.” Bill Conerly, writing if Forbes, suggests that bosses and managers remember one crucial fact: millennials are more than a group punchline to a familiar joke. They are individuals and should be treated as such. “One size will not fit all,” he says, ”just as it never did Baby Boomers or Gen X. In fact, the best advice for managing millennials also works pretty well for other generations.” So—what to do? Susan Heathfield, of the Balanced Careers website, has 11 suggestions to managing millennials. Common sense? Probably, but you’d be surprised how quickly frustration leads to forgetting the basics, like:

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• • •

•

• •

•

• • •

Provide structure. Provide leadership and guidance. Encourage the Millennial’s selfassuredness, “can-do” attitude, and positive personal self-image. Take advantage of the Millennial’s comfort level with teams. Encourage them to join teams and provide a work environment that stresses teamwork. Listen to the Millennial employee. Millennial employees are up for a challenge and change. Millennial employees are multi-taskers on a scale you’ve never seen before. Take advantage of your millennial employee’s computer, cell phone, and electronic literacy. Capitalize on the Millennial’s affinity for networking. Provide a life-work balanced workplace. Provide a fun, employee-centered workplace.

Not everyone is in agreement of the millennials’ role in the corporate world. “I’d argue that Millennials aren’t the unheralded force of change that many people believe,” says Greg Waechter, Snack Nation’s Head of Human Elevation, “and as such, the

correct approach is one that embraces the fundamentals of culture development and people management.” He believes that past principles: reward jobs, stimulating work, recognition, rewards, and a healthy work environment will provide millennials with all they need to succeed, just like it does for older generations. And thus the conundrum continues. There’s no denying that millennials will make up the majority of your workforce before you know it. They bring with them challenges and choices that smart CEOs and other business leaders will have to brace for. They present undeniable challenges but with them comes a tech savvy generation, if utilized correctly, can mean the difference between extensive growth and closing up shop. Bill Gibron is a nationally-recognized film critic. His work has appeared in publications around the world, including Film Racket.com, Filmcritic. com and PopMatters.com. He is also known for his background as an educator, coach, and officer for the state and national speech and debate leagues. Bill passed away shortly before the publishing of this article. His writing, wisdom and character will be greatly missed.

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Industry Bits

Sensors & Software Now Offering Lease-to-Own Program When capital is tight and project opportunities arise, take the opportunity to grow your business with the new ground penetrating radar (GPR) lease-to-own program. Upfront capital expenditures can be tough for growing businesses. To address this, Sensors & Software now offers a Lease-to-Own program. Financing GPR allows for concrete scanning to be added to a company’s portfolio with little to no upfront cost. This financing makes it easy to bundle a GPR system, accessories, data processing software, training, taxes and shipping into one simple lease payment. For More Information: Contact: Janet Khoshaba Tel: 905-624-8909 Email: jkhoshaba@sensoft.ca www.sensoft.ca

K2 Diamond and Sanders Inc. Introduce Three New BLACK KNIGHT Diamond Tools The BLACK KNIGHT Core Bits are designed for speed and elevated life with a unique turbo style segment that utilizes one of the tallest segments in the industry. The BLACK KNIGHT Wall Saw Blades are engineered for today’s high power smart wall saws. The jumbo segments and the unique blade design combine to enhance cutting speeds and extend blade life. The BLACK KNIGHT “Electric” Slab Saw Blades achieve great performance and have a split segment for speed, a tall segment for life and smooth performance on electric, gas, and diesel saws. They are available from 14” to 36” diameters, in two grades, along with a bond optimized for different jobs. For More Information: Contact: Mike Nelson Tel: 800 539-6116 Email: mike.nelson@k2diamond.com www.k2diamond.com

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DITEQ Corporation introduces New HIPPO Concrete Cutting Power Unit CCPU The HIPPO CCPU’s powerful hydraulic pump can run either single or dual tool circuits at a variable combined output of up to 30 gallons per minute. The large fuel and hydraulic tanks, which are enclosed within the skid-mounted unit, provide power for 10 hours of run time. The HIPPO CCPU is also equipped with two remote controls, which allow the operator to control and monitor the system with flow selectors, digital flow meters and pressure gauges, in addition to the power switch and emergency stop. Feature for feature, the HIPPO CCPU is the most powerful and versatile hydraulic power unit on the market. For More Information: Contact: Mike Orzechowski Tel: 816-447-6161 Email: mikeo@diteq.com www.diteq.com

Expert Equipment Company Moves to New Location and Announces Drill Stand Addition Expert Equipment Company announces a professional drill stand addition to their current stand mounted core drill line from Dr. Bender. The EXPERT X2R-42 features a 2 7/8-inch square column with an adjustable roller carriage 4-spoke handle to use on either side. The compact anchor base comes with a 6-inch wheel kit. The core drill rig is equipped with either of the two DR BENDER BBM33 core drill motors. In addition, they offer vacuum bases, pumps, spacers, extensions, adapters and the SLIDER EZ release ring. Their new location is at 2307 Naomi St., Houston, TX 77054. For More Information: Contact: Markus Bartl Tel: 713-797-9886 Email: info@expertequipment.com

@diteqcorporation

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GSSI Announces New Sales Restructuring to Better Serve Customers GSSI, one the worldâ&#x20AC;&#x2122;s leading manufacturers of ground penetrating radar (GPR) equipment, proudly announces a new territorial sales restructuring designed to better serve customers. GSSI has reorganized its sales department into four regional territories to support further growth in its concrete inspection, non-destructive testing and utility locating markets. With the new structure, application specialists will be based in the Northeast, Southeast, Northwest and Southwest, making sales staff closer in proximity to customers. Customers can continue to expect best-in-class products and service support during 2018. Look for increased support staff and enhanced training class offerings in the coming year. For More Information: Contact: Jami Harmon Tel: 603-893-1109 Email: harmonj@geophysical.com www.geophysical.com

DITEQ Channel

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Industry Bits

GSSI Unveils StructureScan Mini LT All-In-One GPR Concrete Inspection System GSSI announces the new StructureScan Mini LT, the latest member of GSSI’s popular all-in-one concrete inspection GPR systems. With all the capabilities of previous versions of the StructureScan Mini, the new StructureScan Mini LT features a lower price point that makes it even more affordable. Rugged, compact, and flexible, StructureScan Mini LT is ideal for locating rebar, conduits, post-tension cables, and voids. It can help identify structural elements, including pan deck and concrete cover, and can also provide real time determination of concrete slab thickness. For More Information: Contact: Jami Harmon Tel: 603-893-1109 Email: harmonj@geophysical.com www.geophysical.com

Bosch GSH27-26 Brute Turbo Breaker Hammer with GPS Tracking The Bosch GSH27-62 Brute Turbo Breaker Hammer with GPS Tracking offers an outstanding concrete removal rate yet weighs only 64 pounds. With 1,000 bpm and 43 ft.-lbs. of impact energy, this versatile heavy-duty tool can tackle applications that range from outdoor asphalt work to indoor foundation removal. It is also the world’s first breaker hammer with GPS tracking that makes sure jobsite managers know where this powerful tool is at all times. A retrofit option (GPS254) brings the same capability to all current Bosch SDS-max hammers. For More Information: Contact: Steve Wilcox Tel: 224-232-2417 Email: Steve.Wilcox@us.bosch.com

Effective Positive & Negative Cementitious Waterproofing in New Construction & Restoration Waterproof reinforced concrete structures and protect against chemical attack with CEM-KOTE FLEX ST, W. R. MEADOWS’ flexible cementitious waterproofing option. CEM-KOTE FLEX ST is a two-component, breathable, fiber-reinforced cementitious coating consisting of a dry and liquid component. Designed for positive and negative waterproofing, CEM-KOTE FLEX ST is effective in both new construction and restoration projects. It can easily be applied by brush or sprayed to suit the application. Ideal for waterproofing potable water or wastewater treatment facilities, CEMKOTE FLEX ST offers excellent adhesion and crack-bridging and is an approved ANS/NSF 61 barrier material. This permeable membrane allows substrate moisture to escape. CEM-KOTE FLEX ST is also recommended for use on tunnels. For More Information: Contact: Steve Wilcox Tel: 224-232-2417 Email: Steve.Wilcox@us.bosch.com

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C-THRUE

See Thru Concrete Structures and Reveal True Data that Lead to Optimal Decision-Making

All-in-one GPR for accurate scanning and real time analysis of concrete structures

IDS GeoRadar North America 14818 W. 6TH Avenue, Unit 1A, Golden, CO 80401, United States of America Tel: +1 303 232-3047 E-mail: gpr.salesna.geo@idsgeoradar.com | info@idsgeoradar.com Web: www.idsgeoradar.com

Industry Bits Aquajet Systems’ Aqua Spine Takes Hydrodemolition to New Spaces Aquajet Systems, a global leader in hydrodemolition machine manufacturing, introduces the Aqua Spine. The multimodular system uses high-pressure water jets to precisely remove concrete from surfaces that may be inaccessible for Aqua Cutter robots, Aquajet’s traditional hydrodemolition machines. Used for onshore and offshore construction as well as in conventional and nuclear power plants, the Aqua Spine brings the power of hydrodemolition to tight small places like never before. “The Aqua Spine is an extremely versatile piece of equipment that sets itself above the rest when it comes to removing concrete,” said Roger Simonsson, Aquajet Systems managing director. “It allows operators to remove concrete in areas that have previously been inaccessible in a safe and efficient manner.” For More Information: Contact: Peter Bigwood Tel: 413-537-5572 Email: peter@brokkinc.com www.brokk.com

Diamond Vantage Introduces New Hakken Drill SMD16

Diamond Products Announces New Hand-Held Core Drill Motor Diamond Products Limited announces its new addition to the existing hand-held motor line with a new CB515 electric hand-held core drill. The unit is powered by a 115-volt, 1800-watt electric motor PRCD/GFCI protection. This motor has a five-inch bit capacity with a two-speed gear box and slip clutch. The threaded spindle is 1.250-7 and includes a 5/8”-11 adapter. There is a side handle for easy coring control and water hose connection for wet drilling. The CB515 mounts to our M-3 and M-4 core rig stands. It is lightweight and compact, only weighing 10.5 pounds. For More Information: Contact: Jim Palmer Tel: 800-321-5336 Email: jpalmer@diamondproducts.com www.diamondproducts.com

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The new drill has a 16” maximum bit size capacity. The SMD16 core drill is capable of outputting 6.4kw and has a built-in three-speed powerful motor. Notable features include: Motor comes with slip clutch that can be easily adjusted from outside the motor, four adjustable leveling screws for drilling uneven surfaces, double insulated construction, water valve swivels 360 degrees, engineered for both vertical and horizontal drilling, light weight drill is easy to carry and lift for wall drilling and roller slide carriage provides smooth drilling with low friction. For More Information: Contact: Sunny Stam Tel: 949-428-2003 www.diamondvantage.com

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Industry Bits

Minnich Manufacturing Adds New York’s JC Smith Inc. to Dealer Network Minnich Manufacturing, a leading manufacturer of concrete dowel pin drills, concrete vibrators and vibrator monitoring systems is celebrating its 50th anniversary in 2018 and has added New York’s JC Smith Inc. to its dealer network.

KEEN Utility Introduces Bold, Versatile New Styles for 2018 “For 2018, we’ve challenged ourselves to redefine how workers perceive their safety footwear should look and feel.” said Brad Bischel, Product Director at KEEN Utility. In Spring 2018, Keen debuted the men’s Baltimore boot which blends classic workboot style with rugged construction and best-in-class comfort. A durable full-grain leather upper and KEEN.DRY membrane provide lightweight, breathable waterproof protection that allows vapor out without letting water in.

One of the largest construction supply operations in Upstate New York, JC Smith Inc. now offers sales, rental and service of Minnich A-1 Series on-grade dowel pin drills out of locations in Syracuse, Utica, Albany, Rochester, Ithaca and Vestal. JC Smith Inc. serves heavy highway construction, municipal, concrete, building supply and landscaping contractors throughout the region. For More Information: Tel: 315-428-9903 www.jcsmithinc.com

For More Information: Tel: 866-676-5336 Email: info@KEENfootwear.com www.keenutility.com

Last Call for Merit’s 44HP Diesel Saw Merit Engineering & Equipment Company’s popular and fully EPA compliant M400SS-44HP-D is going quick and is the last available model in its class. Reserve your saw now, before the engines are gone. Founded in 2011 and headquartered in Prescott, Arizona, Merit Engineering & Equipment Company designs and manufactures innovative, dependable and user-friendly saws for the professional concrete cutter. For More Information: Contact: Sarah Marshall Email: s.marshall@meritsaw.com www.meritsaw.com

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An Exclusive German Engineered Concrete Cutting and Coring Hand Drill Offers Unsurpassed Results Professional quality Dr. Schulze DDM22 Hand Held Drill (distributed by Russo Diamond Supply) performs well beyond traditional drills. German engineered for superior performance and extended life, it delivers unsurpassed reliability and excellence to the professional cutting and coring market. Notable features include: Three Water Attachment Ports. Double leveling bubbles. True pistol grip. Weighs only 15 pounds. For More Information: Tel: 800-484-0452 Email: sales@russodiamondsupply.com www.russodiamondsupply.com

GPRS LLC to Use Decifer GPR Training Software Terraprobe is pleased to announce that GPRS LLC will be using Terraprobeâ&#x20AC;&#x2122;s Decifer GPR simulation software and plans to integrate it into their comprehensive training program nationwide. Decifer is the first simulation software specifically designed as a training tool for GPR concrete scanning. Developed by Terraprobe Geoscience Corporation of Coquitlam, BC, Decifer can help reduce training time for a new technician by up to 75 percent. For More Information: Email: sales@decifergpr.com www.decifergpr.com

Vanguard Expands EFI with E-Governing to Small Block Engine Line Vanguard expands its lineup of electronic fuel injection offerings to include a horizontal-shaft Small Block V-Twin engine. The Small Block engine features an open-loop EFI system with electronic governing engineered for the demands of the commercial construction and rental markets. With the addition of this engine, Vanguard EFI is now available on four engine platforms across nine horsepower ratings varying in output from 23 to 37 gross horsepower For More Information: Contact: Jim Cross Tel: 414-256-1149 Email: cross.james@basco.com www.vanguardengines.com

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C O N C RET E O P EN I N G S | 5 3

Industry Bits

continued

World of Concrete Asia 2018 Show Sales Have Kicked Off! CSDA is a supporting association of World of Concrete Asia (WOCA). WOCA showcases the latest developments across the globe on many aspects of concrete, flooring and construction technology that are applicable to the country and the region. It is a platform for professionals to share their experiences and exchange ideas. Visit their website and register to attend the event which will be held at the Shanghai New International Expo Centre in Shanghai, China, November 19-21, 2018. For More Information: Contact: Rachel Sun Tel: +86-21-2326-3634 Email: rachel.sun@informa.com www.wocasia.com

American Concrete Institute Announces Joint ACI-ASCC Committee 310, Decorative Concrete The American Concrete Institute (ACI) and American Society of Concrete Contractors (ASCC) are pleased to announce that ACI Committee 310, Decorative Concrete, has become a joint ACI-ASCC committee. The mission of the joint committee is to develop and report information on the application of artistic finishes of cast-in-place concrete, avoid duplication of effort, and speed document development. Joint participation also offers greater prospect of funds for research and experimentation, and a wider acceptance of results. For More Information: Contact: Julie Webb Tel: 248-848-3148 www.concrete.org

Epiroc IPS System Takes Hydraulic Breaker Performance to New Level Epiroc introduces another first in hydraulic breaker technology. Many of the company’s heavy hydraulic breaker attachments now feature the patented Intelligent Protection System (IPS). Seamlessly combining Epiroc’s AutoControl and StartSelect functions, the fully automated system provides simpler, more efficient and more economical breaker operation. IPS ensures that the hydraulic breaker always starts in the AutoStart mode which means no manual switching. For More Information: Contact: Rich Elliott Tel: 844-437-4762 Email: rich.elliott@epiroc.com www.epiroc.com

ASV Releases New RT-40 Posi-Track Loader, “A Compact Powerhouse” ASV Holdings Inc. introduces the new RT-40 Posi-Track loader. Featuring a compact size in a class of its own, the RT-40 provides a productive alternative to walk-behind and stand-on mini skid-steer loaders. Expanding ASV’s expertise in small-frame compact track loaders, the machine offers maximum power, reliability, serviceability and comfort. The model is ideal for the rental market, homeowners or contractors working in tight spaces for anything from urban snow clearing to landscaping. “The industry has never seen power like this in a machine the size of the RT-40. It’s a powerhouse,” said Justin Rupar, ASV Holdings Inc. Vice President of Sales and Marketing. “The machine features remarkable performance for its 4-foot width. This means our customers can complete work faster, better and more comfortably in restricted areas.” For More Information: Contact: Regan Meyer Tel: 218-327-5385 Email: regan.meyer@asvi.com www.asvi.com 54 | JUNE.18

Certification OPERATOR CERTIFICATION CSDA’s Operator Certification is a comprehensive six-day program that combines detailed classroom instruction with on-slab demonstration and evaluation of advanced concrete cutting techniques. Safety, proper equipment use and efficiency are emphasized. CSDA certified operators are recognized industry-wide for their proficiency in the full range of sawing and drilling applications.

CE RTIF IE D OPERATOR

MINIMUM REQUIREMENTS • Successful completion of CSDA Cutting Edge, Slab Sawing & Drilling 101, Wall Sawing 101 or Wire Sawing 101 • Three years field experience (4,500 hours) • Successful completion of 10-hour OSHA Construction Safety course • No more than one lost-time injury within the last three years • Unrestricted driver’s license • Negative drug test within 30 days of taking the course

ABC CUTTING CONTRACTORS BIRMINGHAM

CORING & CUTTING OF SPRINGFIELD, INC.

HOUSLEY DEMOLITION CO., INC.

Bessemer, Alabama

Nixa, Missouri

Visalia, California

ABC CUTTING CONTRACTORS MOBILE

CORING & CUTTING SERVICES, INC.

INTERNATIONAL DRILLING & SAWING, INC.

Daphine, Alabama

Bentonville, Arkansas

Montgomery, Alabama

ACE CONCRETE CUTTING

CORING & CUTTING SERVICES, INC.

INTERNATIONAL DRILLING & SAWING, INC.

Cumberland, Rhode Island

Jacksonville, Arkansas

Pensacola, Florida

ACCU-CUT CONCRETE SERVICES

CR MEYER

J-RAY CONTRACTORS, LLC

Palm Harbor, Florida

Oshkosh, Wisconsin

Marrero, Louisiana

AGGREGATE TECHNOLOGIES

CUT-RITE CONCRETE CUTTING CORP.

JACK DOHERTY CONTRACTING

Houston, Texas

Pawtucket, Rhode Island

Woburn, Massachussetts

AMERICAN EAGLE CONCRETE SERVICES

CUTTING EDGE SERVICES CORP.

K.C. CORING & CUTTING CONSTRUCTION, INC.

Orlando, Florida

Batavia, Ohio

Kansas City, Missouri

ANDERS CONSTRUCTION, INC.

D.M. CONLON/DAN-KEL CONCRETE CORING, SAWING & SCANNING

L&S FORMLESS CURB COMPANY

Myrtle Beach, South Carolina

LIUNA LOCAL 506 TRAINING CENTRE

Harvey, Louisiana

ATLANTIC CONCRETE CUTTING, INC. Mt. Holly, New Jersey

DARI CONCRETE SAWING AND DRILLING

AUSTIN ENTERPRISE

Raleigh, North Carolina

Bakersfield, California

DEANDREA CORING & SAWING, INC.

B.T. RENTALS LIMITED

Henderson, Colorado

Woodbrook, Trinidad & Tobago

DELTA CONTRACTORS & ASSOCIATES, LLC

CENTRAL CONCRETE CUTTING, INC.

Baltimore, Maryland

Hanover, Pennsylvania Richmond Hill, Ontario, Canada

LOMBARDO DIAMOND CORE DRILLING CO. Santa Clara, California

M6 CONCRETE CUTTING & CORING Wichita, Kansas

Edgar, Wisconsin

DIXIE CONCRETE CUTTING CO.

PENHALL COMPANY/CONCRETE CORING COMPANY OF HAWAII

CHESCO CORING & CUTTING, INC.

College Park, Georgia

Aiea, Hawaii

Malvern, Pennsylvania

EAST COAST CONCRETE SPECIALITIES, INC.

PG CUTTING SERVICES

CHICAGO CUT CONCRETE CUTTING

Jessup, Maryland

Lake Elsinore, California

Chicago, Illinois

ELMER’S CRANE & DOZER, INC.

QUICK CUTS CONCRETE CUTTING SERVICES, LLC

COBRA CONCRETE CUTTING SERVICES CO.

Traverse City, Michigan

Belvidere, Illinois

Arlington Heights, Illinois

FORRISTALL ENTERPRISES, INC.

ROUGHNECK CONCRETE DRILLING & SAWING

CONCRETE CUTTING & BREAKING CO.

Palmetto, Florida

Morton Grove, Illinois

Jacksonville, Florida

HAFNER & SON, INC.

SUPER CITY CONCRETE CUTTING

CONCRETE CUTTING SPECIALISTS, INC.

Danielsville, Pennsylvania

Ocean Grove, Victoria, Australia

Freeland, Michigan

HARD ROCK CONCRETE CUTTERS, INC.

TRUE LINE CORING & CUTTING OF CHATTANOOGA, LLC

CONCRETE PENETRATING CO.

Wheeling, Illinois

Chattanooga, Tennessee

Dallas, Texas

HARD ROCK SAWING & DRILLING SPECIALIST CO.

TRUE LINE CORING & CUTTING OF KNOXVILLE, LLC

CONCRETE RENOVATION, INC.

Keshena, Wisconsin

Knoxville, Tennessee

San Antonio, Texas

HOLES INCORPORATED

TRUE LINE CORING & CUTTING OF NASHVILLE, LLC

CONSTRUCTION DEBRIS REMOVAL, INC.

Houston, Texas

Nashville, Tennessee

St. Augustine, Florida

HOLES OF SAN ANTONIO, INC.

WOLF INDUSTRIAL SERVICES

CORE SOLUTIONS LTD.

San Antonio, Texas

Maraval, Trinidad & Tobago

56 | JUNE.18

San Francisco, California

COMPANY CERTIFICATION The CSDA Company Certification Program is the first of its kind in the industry. This program has been created for cutting contractors to provide owners, architects, engineers, general contractors and government officials with a valuable pre-qualification tool that acknowledges sound business practices. It is available to all sawing and drilling contractors.

CERT I F I ED COMPANY

A COMPANY MUST MEET THE FOLLOWING CRITERIA TO ACHIEVE CERTIFICATION: • Meet the basic safety, and insurance requirements of the industry • Undertake sound operational and financial best practices • Provide evidence it has took part in basic training or certification programs to better its employees and the company as a whole • Successfully pass a written application review

AMERICAN GPR SERVICES LLC

ECHO GPR

Avondale, Arizona

Paola, Kansas

AUSTIN ENTERPRISE Bakersfield, California

CENTRAL CONCRETE CUTTING, INC. Edgar, Wisconsin

HARD ROCK CONCRETE CUTTERS, INC. Wheeling, Illinois

HOLES INCORPORATED Houston, Texas

COBRA CONCRETE CUTTING SERVICES CO. Arlington Heights, Illinois

INTERNATIONAL DRILLING & SAWING INC. Pensacola, Florida

CUTTING EDGE SERVICES CORP. Batavia, Ohio

DIACORE CONCRETE CUTTING SPECIALISTS

ONLINE CONCRETE CUTTING SERVICES PTY. LTD Seven Hills, New South Wales, Australia

Frenchs Forest, New South Wales, Australia

ST-118 CERTIFICATION This certification is the first of its kind for measuring concrete surfaces and their surface texture value. The approach is to measure and analyze the surface texture in order to understand how the texture is influenced by the finishing process, and how the surface texture influences its behavior with regards to gloss, friction and sustainability. The certification is based on Standard CSDA-ST-118.

A CERTIFIED OPERATOR: • Has been provided instruction on how to correctly measure concrete micro surface texture • Has knowledge of proper tool selection to mitigate damage • Passed a written test • Was issued a certificate upon completion of the class For more information about this Standard, certification or a list of current ST-118 Certified companies, visit www.csda.org/st118.

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C O N C RET E O P EN I N G S | 5 7

Membership Affiliates BROCK RENTALS INCORPORATED Monroe, WA

TERRAPROBE

Coquitlam, BC, CANADA

North American Contractors

CAT & I, INC. Kissimmee, FL

PATRIOT CONCRETE CUTTING Midlothian, VA

MBE

OSCO MUDJACKING & SHOTCRETING LTD. Edmonton, AB, Canada

Manufacturer

HUSQVARNA CONSTRUCTION PRODUCTS/HTC, INC. Knoxville, TN

Distributor

IDS GEORADAR NORTH AMERICA Golden, CO

MEMBER

BENEFITS SAFETY RESOURCES

T OUN S C S I D GRAM ember ates m PRO negoti al iation nation

soc ith The As programs w S and t i f e es, UP n l e p b a t S ovide e rs lik r to pr e d r o vendo .com in rtunities supply ppo V-belt vings o mbers. cost-sa DA Me for CS

58 | JUNE.18

NETWORKING

AND TOOLBOX SAFETY TIPS (TSTS) • 230-page CSDA Safety Manual • Safety Handbook in English/Spanish • Safety Videos for concrete cutters • Over 100 Toolbox Safety Tips (TSTs)

AT THE ANNUAL CONVENTION AND QUARTERLY MEETINGS The number one benefit for members has always been the opportunity to network with cutting professionals at the annual convention and quarterly meetings. This networking provides opportunities to forge new relationships and learn from other experienced professionals.

NEXT GEN

CSDA NEXT GENERATION GROUP The group aims to continue the growth of the association while serving the needs and wants of the younger generation, with the goal of continuing to set a standard of excellence.

24/7 TESTIMONIAL My company, American Pavement Sawing, joined CSDA in 2017 because we were expanding our reach and broadening the services we offer. I was sent to Portland to participate in training classes offered by CSDA as well as the Operator Certification in Clearwater, Florida. I took three courses: Slab Sawing & Core Drilling 101, Wall Sawing 101 and Wire Sawing 101. Throughout this training I was able to learn the ins and outs from some of the very best and most experienced folks in the industry! I already had over two years of experience in this field, yet the amount of information I was exposed to during the training was still extremely valuable.

THE CSDA WEBSITE AT WWW.CSDA.ORG CONTAINS A WEALTH OF INFORMATION AVAILABLE 24/7 IN THE “MEMBERS” SECTION. IN ADDITION, CSDA’S FACEBOOK PAGE AND DISCUSSION FORUM GROUP PAGE ALSO PROVIDE MEMBERS WITH A CHANCE TO DISCUSS TECHNICAL ISSUES, SELL EQUIPMENT, HIRE EMPLOYEES OR ANY OTHER RELEVANT TOPICS.

TRAINING OVER 4,000 INDUSTRY PROFESSIONALS HAVE GRADUATED FROM MORE THAN 20 CLASSROOM, HANDS-ON AND ONLINE CSDA TRAINING AND CERTIFICATION PROGRAMS FOCUSED ON CUTTING DISCIPLINES, ESTIMATING, POLISHING AND SAFETY. ONLINE TRAINING AT WWW.CSDATRAINING.COM OFFERS A COST-EFFECTIVE ALTERNATIVE TO THOSE NOT ABLE TO AFFORD THE TIME OR THE MONEY TO SEND OPERATORS TO CLASSES.

Carlos Blevins American Pavement Sawing

Once returning from the courses I was able to implement the training methods directly into my everyday service work and as a result I have become a more efficient and profitable operator. I appreciate the fact that I work for a company that values quality training and will invest in its employees. CSDA and the courses they offer have helped me and American Pavement Sawing grow and improve greatly. I would highly recommend taking the courses and becoming a member of CSDA.

DUESSCHEDULE REGISTER ONLINE AT WWW.CSDA.ORG GROSS SALES

NORTH AMERICAN CONTRACTOR

POLISHING CONTRACTOR

GPR IMAGING MANUFACTURER DISTRIBUTOR OVERSEAS CONTRACTOR CONTRACTOR

$0 – 1M

$625

$750

$1,320

$960

$1 – 2M

$995

$1,630

$1,220

$2,430

$1,820

$2 – 3M

$1,525

$750

$3 – 5M

$2,050

$5 – 10M

$2,600

$1,250

$400

AFFILIATE

$765

$3,895 $5,275

$2,995

> $10M $3,260 $6,500

For more information about CSDA membership, visit www.csda.org, call 727-577-5004 or email info@csda.org. W WW. C O N C RE TE OPE N IN GS.COM

C O N C RET E O P EN I N G S | 5 9

Calendar 2018 JUNE 21-23, 2018

CSDA Winter Meetings—Casa Monica Resort in St. Augustine, FL

AIA Conference on Architecture Javits Center New York, New York Tel: 727-577-5004 Email: info@csda.org www.conferenceonarchitecture.com

SEPTEMBER 5-6, 2018 CSDA Fall Meetings Milwaukee Marriott Downtown Hotel Milwaukee, Wisconsin Tel: 727-577-5004 Email: info@csda.org www.csda.org

OCTOBER 15-16, 2018 CSDA Slab Sawing & Core Drilling 101 Training St. Petersburg College Clearwater, Florida Tel: 727-577-5004 Email: training@csda.org www.csda.org

NOVEMBER 7-8, 2018

2019

CSDA Wall & Hand Sawing 201 Certification

OCTOBER 17-18, 2018 CSDA Wall & Hand Sawing 101 Training St. Petersburg College Clearwater, Florida Tel: 727-577-5004 Email: training@csda.org www.csda.org

St. Petersburg College Clearwater, Florida Tel: 727-577-5004 Email: training@csda.org www.csda.org

NOVEMBER 9, 2018

JANUARY 21-25, 2019 World of Concrete 2019 Las Vegas Convention Center Las Vegas, Nevada Tel: 972-536-6423 Email: contactus@worldofconcrete.com www.worldofconcrete.com

CSDA Wire Sawing 201 Certification

OCTOBER 19, 2018 CSDA Wire Sawing 101 Training St. Petersburg College Clearwater, Florida Tel: 727-577-5004 Email: training@csda.org www.csda.org

St. Petersburg College Clearwater, Florida Tel: 727-577-5004 Email: training@csda.org www.csda.org

NOVEMBER 19-21, 2018

MARCH 8-10, 2019 Firestone Grand Prix St. Petersburg Downtown St. Petersburg St. Petersburg, Florida Tel: 727-577-5004 Email: info@csda.org www.csda.org

World of Concrete Asia

OCTOBER 22-24, 2018 BuildTech Asia 2018 Singapore Expo Hall 3 & MAX Atria Singapore, Singapore Tel: +65-6319-4021 Email: buildtechasia@sph.com.sg

Shanghai New International Expo Centre Shanghai, China Tel: +86-21-2326-3669 Email: info@wocasia.com www.en.wocasian.cn

DECEMBER 5-6, 2018 NOVEMBER 5-6, 2018

CSDA Winter Meetings

CSDA Slab Sawing & Core Drilling 201 Certification

Casa Monica Resort St. Augustine, Florida Tel: 727-577-5004 Email: info@csda.org www.csda.org

St. Petersburg College Clearwater, Florida Tel: 727-577-5004 Email: training@csda.org www.csda.org

60 | JUNE.18

MARCH 11-12, 2019 CSDA Spring Board & Committee Meetings The Vinoy Renaissance St. Petersburg Resort & Golf Club St. Petersburg, Florida Tel: 727-577-5004 Email: info@csda.org www.csda.org

MARCH 13-15, 2019 CSDA 2019 Convention & Tech Fair The Vinoy Renaissance St. Petersburg Resort & Golf Club St. Petersburg, Florida Tel: 727-577-5004 Email: info@csda.org www.csda.org

Advertising and Readership Circulation 19,000+ minimum, per issue 12,000+ member and prospective member companies made up of contractors, manufacturers, distributors and affiliates

7,000+ general contractors, engineers, architects and government officials who specify cutting, polishing and imaging

Who Reads the Magazine? Concrete Openings reaches cutting, polishing and imaging contractors as well as specifiers of these services, including engineers, architects, general contractors and governmental agencies. Why waste your message on unnecessary circulation? Advertising in Concrete Openings guarantees a targeted audience of industry professionals.

READERSHIP BY PROFESSION

Target the Specialized Industry of Concrete Cutting, Polishing and Imaging Advertising in Concrete Openings magazine is the only way to reach the specialty market of cutting, polishing and imaging contractors who work with concrete, asphalt or masonry because it is specifically targeted to this segment of the industry.

How Do You Reach 19,000+ Concrete industry Professionals? Each issue of Concrete Openings magazine is sent to more than 12,000 operators, equipment manufacturers and suppliers in the concrete cutting, polishing and imaging industry, and more than 7,000 specifiers of these services around the world.

Not a Subscriber? Get your free subscription today! Visit www.concreteopenings.com and click “subscribe.”

52%

Readership Per Issue A poll of Concrete Openings subscribers revealed that 66% pass on their copy of the magazine to at least one other person, with almost 25% stating that the magazine is passed on to four or more people each issue. This translates to an average of four people reading each issue of the magazine for a total readership per year of approximately 60,000.

8% 40%

• Specifiers • Contractors • Manufacturers, Distributors

CSDA Social Media CSDA’s social media pages are packed with all the latest news, updates, photos and videos from the association and Concrete Openings magazine. Look out for exclusive content and become “friends” with others who are looking to network and promote the sawing and drilling industry. Join our growing fan base and stay in touch with the association through your PC, laptop or mobile device. Find direct links to these pages at www.csda.org.

Concrete Openings Website Concrete Openings has its own website. Advertisers have direct links to their websites placed on our Advertisers page as a complimentary addition to ad placement. A full page-turning copy of the magazine, including ads, is also available for visitors to read on the website. Visitors to the site can now access our advertisers at the touch of a button. The Concrete Openings website also has banner advertising opportunities available throughout the year. Visit www.concreteopenings.com for more information.

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C O N C RET E O P EN I N G S | 6 1

Advertisers To receive additional information about products advertised in this issue, contact the vendors below. PAGE

ADVERTISER

PHONE

Brokk, Inc.

877-276-5548

peter@brokkinc.com

CSDA Company Certification Program

727-577-5004

info@csda.org

Inside Front Cover, 55

Diamond Products

800-321-5336

jpalmer@diamondproducts.com

47, 53

DITEQ Corporation

816-246-5515

mikeo@diteq.com

Dixie Diamondâ&#x20AC;&#x201C;Concut Group

678-296-3747

gwolters@dixiediamond.com

Triple E Equipment

954-978-3440

aberg@eeeequipment.com

GelMaxx

619-701-7246

info@gelmaxx.net

Geophysical Survey Systems, Inc. (GSSI)

603-893-1109

harmonj@geophysical.com

Inside Back Cover

Hilti North America

918-872-3079

corrie.brock@hilti.com

32, 33, Outside Back Cover

Husqvarna Construction Products

913-928-1442

cate.stratemeier@husqvarna.com

ICS, Blount Inc.

800-321-1240

marketing@icsdiamondtools.com

IDS GeoRadar North America

303-232-3047

info@idsgeoradar.com

WOC Asia

+86 21-2326-3634

info@wocaasia.com

Lissmac Corporation

518-326-9094

sales@lissmac_corporation.com

Merit Engineering & Equipment Company

928-771-0575

r.ferguson@meritsaws.com

Pentruder, distributed by ICS, Blount Inc.

800-321-1240

terry.martin@blount.com

Vacuworx

918-259-3050

paulab@vacuworx.com

Zircon

800-245-9265

info@zircon.com

62 | JUNE.18

One power source. Many tools. Get more done.

3P8 HF Wire Saw

8-20 HF Wall Saw

Pentpak 427

6-10 HF Wall Saw

CW630 HF Chain Saw

CBK HF Wall Saw

ICSDIAMONDTOOLS.COM

Director’s Dialogue

Resistance is Futile OK did I catch your attention enough to read through this Director’s Dialog? PATRICK O’BRIEN Executive Director

tar Trek fans will recognize this statement from The Borg in The Next Generation series. Resistance is a refusal to accept or comply with something. Futile means pointless or incapable of producing any useful results. So how does this apply to the concrete cutting industry? I have personally been working with CSDA since 1983 when I was with GE Superabrasives to encourage the adoption of training and certification programs for both operators and companies. CSDA has made much progress over the years with training and certification programs. While many members invested in operators and their companies to participate in these programs there was never, until now, a government requirement to become licensed or certified. Several very recent developments would indicate that resistance is diminishing and change is in the air. Last week I was invited to accompany a CSDA member to a meeting with the Pinellas County (Florida) Contractor Licensing Board. The Board is looking to establish a license for cutting contractors and is seeking input to guide them in this process to establish an exam for such a license. Dade County (Miami) has already established a Concrete Slab Sawing and Core Drilling

64 | JUNE.18

Contractor License and other counties in Florida are following suit. Another advancement in training and certification for the construction industry came out of the Small Association Group Executives (SAGE) meeting last week in conjunction with the World of Concrete Cosponsor meeting. SAGE is a group of associations in the concrete industry similar in size to CSDA. The executive directors of this group reported that certification training classes are up dramatically in early 2018. They unanimously agreed that resistance to certification is falling and the construction industry is rapidly moving towards requiring certification for all employees. With this emerging trend these developments can be an important breakthrough for CSDA; as we could be the organization that provides the training and examination for cutting contractors in what undoubtedly will become an increasing focus in the construction industry. CSDA’s online training platform and hands-on classes have produced over 6,000 graduates. This is an opportunity to leverage the work that has been done by CSDA to emerge as the premier training provider for the construction industry. So while CSDA has been a leader, there has also always been resistance from the industry to just continue to operate as before and not rock the boat. But continued resistance may be futile!

POWER AND PERFORMANCE WITHOUT THE WEIGHT Demolition hammer TE 2000-AVR

The TE 2000-AVR is the perfect blend of power, ergonomics, and weight. Weighing in at 33 lbs., it is easy to maneuver and transport throughout the jobsite, and is ready for use in minutes thanks to the detachable cord and quick TE S-connection. With a t-handle design and exceptionally low vibration from Hilti’s innovative sub-chassis AVR (Active Vibration Reduction) system, the TE 2000-AVR allows for efficient performance and maximum working comfort.

1-800-879-8000 www.hilti.com • www.hilti.ca

BC • 01/18

Add the TE 2000-AVR to your tool arsenal today to handle a variety of demolition and breaking applications and you’ll notice improved productivity while decreasing repair frequency.

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platform. HTC is proud to introduce a new addition to the series: HTC DURATIQ 5 – a unique combination of intelligence and raw power in a compact machine. Experience a machine that combines power and versatility with unmatched ergonomics. htc-floorsystems.com order@htc-america.com

Phone: 865-689-2311