Canadian Concrete Pumpers 2021 edition by DEL Communications Inc.

CANADIAN CONCRETE

PUMPERS 2021 edition

The Noremac Group helps multi-phase LRT project take shape in Edmonton Lafarge Canada takes on remote wind farms â&#x20AC;&#x201C; with sustainable solutions Comprehensive pump and boom inspections will pave the way toward safer workplaces PUBLICATION MAIL AGREEMENT #40934510

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Message from the editor, Shayna Wiwierski Concrete transit authority: Noremac Group helps multi-phase light rail project take shape in Edmonton Lafarge Canada takes on remote wind farms - with sustainable solutions Limited setup for a large expansion: Illinois hospital expands ICU in the midst of the pandemic Comprehensive pump and boom inspections will pave the way toward safer workplaces The cement and concrete industry targets a carbon-neutral future

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Canadian Concrete Pumper 2021

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message from the editor

Shayna Wiwierski

ell, 2020 was a year like no other. I think we can all breathe a collective sigh of relief that itâ&#x20AC;&#x2122;s now a new year, and with that comes hope for a better tomorrow. All aspects of our daily life shifted, but through it all, the resilience and tenacity of the construction industry pressed on. Since construction was deemed an essential service early on in the pandemic, it was business as (a new) usual. What was previously an industry where people worked in close quarters, now physical distancing has to be maintained, PPE has to be worn, and health screening questions are now part of our daily lives. The effects of COVID-19 on the construction industry is just one of many stories we have in this issue of the Canadian Concrete Pumpers magazine. Of course, we also take a look at some

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Canadian Concrete Pumper 2021

major projects happening in Canada, such as the Edmonton LRT line and a few different wind farms going up across the Prairies, as well as a few new OH&S regulations that have recently come into effect. We also take a deep dive into how the cement and concrete industry can play a significant role in minimizing the impact of climate change and build a more sustainable future. I hope you enjoy this issue of the Canadian Concrete Pumpers magazine, and as always, if you have any story ideas, feedback, or just want to say hi, feel free to reach out. Shayna Wiwierski Shayna@delcommunications.com @DELCommInc

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Concrete Transit Authority Noremac Group helps multi-phase light rail project take shape in Edmonton PHOTOS COURTESY OF JUSTIN LOIMAND, NOREMAC OPERATOR.

At one of the first stops on the Edmonton LRT’s Southwest line, Noremac’s S 47 SX III pours the City Centre Mall LRT terminal platform.

ight rail transit (LRT) is hardly a new concept to residents of Edmonton, Alberta. In operation since 1978, LRT service in the province’s capital city has proven popular, regularly landing it in Top 10 lists for ridership in North America. That acceptance prompted the city to embark on a massive expansion of the service from a single central line to other parts of the metropolitan area. With four additional lines either already in progress or in the final design stage, Edmonton LRT is solidly poised to meet the city’s population growth, an upward trend that is outpacing both provincial and nation-

Canadian Concrete Pumper 2021

al rates. Heading the concrete pumping effort on one of those line expansions is the Valley Line Southeast (Phase 1) project — often with as many as eight pumps working at a time — and Edmonton-based Noremac Group, is answering a call that few in the region could.

The right choice With a fleet that is 31 pumps strong and runs the gamut from trailer pumps to a trio of S 61 SX units, the Noremac Group (Noremac, incidentally, is a reverse spelling of founder Cameron Currah’s first name) is concrete pumping epitomized.

Founded in 1984, the company operates offices in Alberta, Saskatchewan, and British Columbia, and completes projects from Ontario to B.C. Providing strengths in everything from residential work to heavy industrial/civil projects, they were an ideal fit for a lengthy, massive project like this facet of the Edmonton LRT expansion, according to Connor Currah, company vice-president. “For such a challenging, high-profile project, we bring a lot to the table in terms of fleet size, on-site dependability, safety record, and so on,” said Cameron Currah. “This is the first of two phases

Left: Noremac’s S 28 SX pours piles for future track slab near the Valley Line’s Muttart Conservatory Terminal. Centre: On a section of the project known as the Connor Road expansion, Noremac’s crew uses its 38-metre pump with five-section boom to pour piles. Right: Capitalizing upon the extendable boom of its S 31 XT, Noremac pours duct banks at Edmonton’s City Centre Mall.

and it has been broken down into three individual scopes or segments: elevated guideways — all the above grade work, tunnel work, and track slab. We had the opportunity during the bid process to bid on any of the individual scopes of the $1.8B (CAD) total project cost, or all three. We provided pricing for all three

and were awarded the concrete pumping for Phase 1.” To get a true feel for the size of the Valley Line Southeast, consider that the project is being delivered using the P3 model (public private partnership) and the general contracting duties, followed by a 30-year operating period, which are

being assumed by a consortium of four major global firms working under the umbrella, TransEd Partners. Each member of the consortium brings with it a particular specialty: EllisDon, construction; Bechtel, engineering; Bombardier, transportation; and Fengate Capital Management, finance. Noremac was awarded

The four-year LRT extension project means dealing with the often-harsh Edmonton winters. Here, Noremac uses an S 32 SX pump to pour track slab, then covers the work with hoarding tarps. Canadian Concrete Pumper 2021

Benefiting from the reach of its S 55 SX, Noremac operator Justin Loimand has the unit positioned to pour plinths near the line’s Grierson Hill tunnel.

the concrete portion of the project in 2016 with work commencing in spring of the following year.

A case for smaller At 13.1 kilometres, the Valley Line Southeast project is one of the longest lines on the evolving Edmonton LRT network. And, unlike the traditional jobsite in which the work is fairly concentrated, here, individual projects — tunnel work, track slab, elevated stations, etc. — can all be taking place at the same time, making pump selection and availability key. “We are using everything from our line pump to one or more of the 61-metre units — each pump has a place in the operation,” said Currah. “Because so many of the pours are trending smaller, so too is the reliance upon smaller pumps. Much of the track slab, for example, does not require a lot of reach so we are able to handle it with pumps offering less than 36-metres of reach. The length of the average dual track pour is 40 metres of -.52-metre thick slab.” Smaller pumps are also proving popular with TransEd for their inherently smaller footprint. With the exception of the tunnel and guideways, the line exten-

Canadian Concrete Pumper 2021

sion itself runs parallel — and, in some areas, close to — the city’s existing road system. “In order to pour some of that track slab, the width of outrigger spread became more of a priority than what we are used to on other jobs,” said Currah. “In many cases, we can send a 40-metre pump to do a job in which a customer requested a 28-metre. But on this project the setups were so tight in spots that, if we were to send a bigger truck, we would have to either short-rig or request a costly lane closure and we generally try to avoid both. So smaller pump availability pays dividends.”

Tunnel vision One of the more interesting components of the Valley Line Southeast project is a 400-metre-long pair of six-metre diametre. tunnels that start beneath downtown and exit near the North Saskatchewan River where the line will connect with the newly constructed, 260-metre, cable-stayed Tawatinâ bridge and continue southward. No small feat of engineering, nearly 76,000 m3 of material was removed in the initial tunnel sequential excavation method (SEM) process,

during which the newly excavated tunnel segments were immediately stabilized using a 300mm layer of shotcrete. With shotcrete in place, each tunnel was lined with a fully welded PVC waterproofing membrane, designed to ensure the structure remains impervious to the elements, before moving on to the creation of the tunnel walls. Wall pours were completed using an SP 4800 line pump feeding a pair of six-metre DEMA Infrastructural Tunnel Formwork systems. According to Dallas Lindskoog, TransEd representative, both tunnel pours (northbound and southbound) started with a single forming system at each tunnel entrance. “These areas feature a much tighter radius than anywhere else in the tunnel, so we went with a shorter length, single form,” he said. “With those areas completed, we bolted two formwork traveler frames together and began advancing at longer 12-metre intervals for the balance of the tunnel straight sections. The concrete, a 5,000 psi, steel-fibre reinforced mix, is pumped into the travelling forms in multiple lifts, also 300mm thick, to keep the form balanced and aligned. It takes approximately six hours for each

section to be pumped. Ports and windows at various levels allow us to ensure that the concrete is consolidating properly. Despite the stiffness of the mix and more than 90 metres of hose, the line pump handled it nicely.” Although the SP 4800 pumped most of the more than 10,000 m3 of concrete on the tunnel interior, access challenges at the structure’s entrance and exit demanded a much different approach. “We used some of our bigger units in those areas,” said Currah. “Because of the lack of good access in those areas — the riverbank in particular — we had some interesting pour setups with our 61- 55and 47-metre pumps. But I believe it’s that ability to meet any need that made us a valued part of the team out here.”

OMG in the OMF Nowhere was the value of pump availability more evident than in the slab pour for a structure called the Operations and Maintenance Facility (OMF). The OMF is used to store and maintain rail vehicles that are part of the Valley Line LRT system. The structure, despite being warehouse-scale huge, offered limited overhead space, according to Currah. “The 250mm thick slab was roughly 13,700 m2 in size, so this was a fairly sizeable pour,” he said. “The conventional way to tackle it would be to set the pump up outside the building and run line into the structure. Instead, by choosing the S 31 XT, our operator, Justin Loimand, was able to drive the pump directly into the building and unfold in there, despite the low roof clearance.” The 31-metre pump to which Currah refers, features a five-section extendable boom that requires only 18 feet to eight inches of unfolding clearance, which played well into work at the OMF. It also afforded Noremac 15 feet to three inches of smooth telescopic action, which allowed their operator to accurately position the boom where needed and reach 87-feet horizontally without exceeding the unfolding height, yet still pour back to the front bumper.

Left: Benefiting from the reach of its S 55 SX, Noremac operator Justin Loimand has the unit positioned to pour plinths near the line’s Grierson Hill tunnel. Right: With Canada Place, which houses federal government offices for Edmonton and much of western Canada, in the background, additional duct banks are poured using the S 28 SX.

“Having those capabilities made things much easier, both for us and for the placing crews,” said Currah. “Any time you can pump right off the boom and avoid the back-breaking work of dragging line around, it’s better for everyone and keeps production levels up.” One additional benefit of the 31-metre pump they drew upon is how efficient it is in set up and tear down times. “We’ve found that to be great on track slab pours,” he said. “When we get to a point where we max out the reach on a pour, it is quick and easy to tear down and reset further down the line. That minimizes any risk of having the concrete time-out because of a move.”

had to convince the manager in our Saskatchewan branch to let us borrow theirs for a couple summers. At the same time, we had to make certain we still provided great service to our other customers. But this was a rare opportunity to secure a four-year project and we certainly didn’t want to jeopardize it. Cameron, our owner, has always had the philosophy that if you buy the highest-quality equipment and put together the best team, success will follow. It’s served us well for 37 years now and is proving itself every day on the LRT project.” The Valley Line Southeast is scheduled to open to passengers in 2021.

Great accommodations

Owners: City of Edmonton. • P3 General Contractor: TransEd Partners (EllisDon Construction Co., Bechtel Canada Corp.; Bombardier, Inc..; Fengate Capital Management, Ltd.) • Pumping Contractor: The Noremac Group, Edmonton, AB • Concrete Supplier: Rolling Mix, Calgary, AB • Equipment: Schwing SP 4800 line pump, S 31 XT, S 32 X, S 36 X, S 38 SX, S 40 SX, S 42 SX, S 47 SX, S 55 SX, and S 61 SX truck-mounted concrete pumps with placing boom. 

Given that the LRT expansion is one of the largest and highest-profile infrastructure projects currently taking place in Alberta, the pressure has been great for Noremac to consistently meet TransEd’s needs. That can include anything from ensuring minimum pump requirements (five at all times) to guaranteeing specific pump availability. “During some particularly busy periods, for example, TransEd wanted us to make certain that the 31-metre pump was available for several months at a time,” said Currah. “That took some doing; we

Specifications

Canadian Concrete Pumper 2021

Lafarge Canada takes on remote wind farms – with sustainable solutions

s the need for reliable energy to our cities grows, providers are considering new technologies, including wind farms – massive projects with complex technical specifications. Building on Lafarge Canada technical experts’ knowledge of the complicated design involved with these huge turbines, our construction managers bring in the right combination of schedule management, risk mitigation, safety policies, and custom-blended performance products

to ensure that these projects are executed properly, on time, and on budget. Lafarge’s ability to provide onsite materials generation, along with dedicated managers from the design phase through to completion, puts them at the forefront of demanding wind energy projects across southern Alberta and Saskatchewan. The Whitla Wind Project, located in the County of Forty Mile, Alberta, has a planned capacity of 298.8MW and is

The Whitla Wind Project, located in the County of Forty Mile, Alberta, has a planned capacity of 298.8MW and is located on 33,000 acres of land.

located on 33,000 acres of land. The turbines – 56 of them – are each 105 metres tall, with blade rotor diametre of 136 metres. Each turbine weighs more than 250 tons, and requires a specially engineered and installed concrete base to support its massive structure and pressure. The turbines required highly engineered and massive supports in a demanding and remote location. As part of making sure the custom concrete blend for this unique project met the demanding specifications, Lafarge Canada’s quality control team gathered local aggregate from the Lafarge facility closest to the project site. This material was then shipped to the company’s Innovation Lab, located in Edmonton, to establish mix designs. As part of the design process, Lafarge engineers utilize proprietary software to enter material data that was tested and validated in the lab. Once designs

As part of making sure the custom concrete blend for this unique project met the demanding specifications, Lafarge Canada’s quality control team gathered local aggregate from the Lafarge facility closest to the project site.

Canadian Concrete Pumper 2021

Left: Ice was added to mix trucks prior to batching to ensure that performance and timing worked with the massive foundations’ timelines. Centre: As part of the proof of concept, the Lafarge Technical Centre ran comparisons to validate the use of GUL as compared to GU cement for mass foundation heat generation potential. Right: In the spring of 2020, the Lafarge Canada portable operations team were approached to supply concrete to the Golden South Wind Facility in Assiniboia, Saskatchewan.

were established, the engineering team conducted concrete trials to ensure the designed mixes would meet the required flow and pumping characteristics needed to meet the high-temperature parametres experienced on site. “Heat and concrete can sometimes have trouble working together,” explains Piero Nanfara, director, QA/QC and new products. “The trials we do in the lab are critical to ensure that we allow for the impact of the high temps out there.” With approved mix designs in hand, the portables team jumped into action, armed with even more innovative solutions to manage the site’s demanding conditions. Due to the extreme weather in the region – where days heat up a lot, and quickly – teams began work between 2:00 and 5:00 each morning to make sure that performance and safety weren’t impacted by the intense temperatures. In fact, ice was added to mix trucks prior to batching to ensure that performance and timing worked with the massive foundations’ timelines. Concurrently, the site teams had to time batching, transport, and pumping to allow for temperature fluctuations – carefully managing pumpability with tight timelines. In the spring of 2020, the Lafarge Canada portable operations team were approached to supply concrete to the Golden South Wind Facility in Assiniboia, Saskatchewan. By maximizing Lafarge’s massive resource network, paired with the on-staff technical experts, the team found a solution that met not only a remote location, but provided an opportunity for a reduced concrete mix.

Each of the project’s 50 wind tower turbines are founded on a 420 m3 base to support the 110-metre (360-foot) tower structure. Concrete specifications established by the project engineers required a mix that would achieve 35MPa and 45MPa strengths in 28-days – without the concrete exceeding a core temperature of 70°C. The challenge of developing mixes to achieve consistent high strengths while meeting a tight “heat of hydration” specification was taken on by Lafarge’s quality engineers, while focusing on opportunities to reduce the carbon footprint of the concrete supply portion of the project. Existing mixes used in previous wind power facilities had a very narrow range of cementing materials able to achieve the strength requirements without exceeding the temperature limits. Using that experience, a comparison between the heat generated by ordinary GU cement and a lower-carbon GUL cement was established to provide a baseline. As part of the proof of concept, the Lafarge Technical Centre ran comparisons to validate the use of GUL as compared to GU cement for mass foundation heat generation potential. GUL’s lowered specific heat signature proved to be advantageous and allowed for better control of the heat generation and improved pumping characteristics. In addition, new admixtures which helped achieve the strengths became available, and were used in the testing and trials for the revised mixes. Between the change in cement and the new admixtures, the project mixes realized a significant reduction of 41.4 kg/m3 of CO2

emissions from the mixes produced for the project. Over the length of the Golden South project, this amounts to 1,035 tonnes of CO2 reduction. “We see how the Canadian energy marketplace is evolving,” says Trevor Joyce, general manager RMX portables for Lafarge Canada. “We know that we can be a part of the change by including these sustainable options in the mixes, and contribute to reducing CO2 right from the start.” The entire organization is founded on a culture of both innovation and performance. Teams are continually challenged to meet demanding performance and conditions, and with the right mix, the right pumping partner, and the right project management, they continue to succeed. The combination of innovative materials and admixture technology further complement the company’s goal to help ensure that future projects start with a solid base of environmentally-conscious concrete materials, providing energy and reducing pollution as these projects are built. At the same time, there’s a team of innovative and skilled engineers who can assess every aspect of the performance and unique requirements. With an unparalleled resource network – spreading across some of Western Canada’s most remote areas, and supported by a fleet of high-performing portable concrete plants – and an onstaff team of innovative and driven performance experts, Lafarge Canada has become the foremost supplier for wind farm projects in the prairie provinces. Learn more at www.lafarge.ca.  Canadian Concrete Pumper 2021

TURE A E F T C PROJE L A ATION INTERN

The Chicago skyline was in clear view from the jobsite deck.

Limited setup for a large expansion Illinois hospital expands ICU in the midst of the pandemic

orthShore Skokie Hospital is a specialty hospital in Illinois dedicated to spine and orthopedic care, as well as emergency and outpatient services. To further meet the needs of the local Skokie community, the NorthShore University Health System developed a

plan to reconstruct the intensive care unit (ICU) and emergency receiving area. This enhanced emergency facility, set to be completed in 2021, will be four storeys. The expanded emergency room (ER) and intensive care unit centre is expected to generate more space for incoming emer-

gencies and transfers, as well as a leaner transitioning process between departments and floors. General contractor Pepper Construction staged the concrete portion of the project in three pour phases. Phase 1 consisted of interior work which involved expanding the existing storage in the basement, moving the existing bathrooms and locker rooms, and creating a space for the sterile processing centre. They also added an additional elevator shaft to eliminate the wait time for the high-use elevators. Phase 2 consists of iron work and pouring the main slabs. Phase 3 will be the final building out of the units on the third and fourth floors. The fourth floor addition was constructed and poured in segments. Beginning with the 6,600-square-foot first pour The Sany SY 38-metre pump handled the lightweight mix easily.

Canadian Concrete Pumper 2021

The jobsite proximity to the active ER and receiving area required a minimal set up space for the crew. Inset: A vibra-screed was used to strike the concrete.

of the west section, Patriot Conveying and Pumping selected their new Sany SY 38-metre concrete pump as the perfect pump for the job and its required reach. Patriot purchased their first Sany boom pump through Putzmeister America in 2020 after operating a Sany demo pump. The SY 38 model was the first of four Sany product launches in 2020. It is joined by the SY 47, SY 56, and SY 66.

A light mix This job required an uncharacteristically lightweight concrete mix. Although the mix wasn’t required for the job application, the design was chosen for the minimal deflection characteristics on the composite metal deck. It consisted of a 3500-psi lightweight concrete mix with pea gravel and 10 per cent air. This moonrock-like substance is about 500 lbs. less than normal mix designs. The Patriot team was sure the 38-metre wouldn’t have an issue pumping the mix. “The mix is coming out like butter,” said Steve Cottingim, operations manager of Patriot Concrete Pumping, “This thing will pump anything, it doesn’t matter what you put in it.”

Make way Pepper Construction was challenged with completing the project while not disturbing the still open and active emergency room services. Equipment set-up space was available only on a small footprint as it abutted directly next to the ambulance and pedestrian drop off for the ER. Set up for the Sany SY 38Z-metre was particularly challenging due to the required heavy traffic of the ready-mix trucks. The pumps tight footprint aided in easing the congestion. In addition to typical ER activity, Skokie Hospital needed to be prepared for the potential elevated patient volumes due to COVID-19. Pepper Construction and Patriot Conveying and Pumping were sensitive to this situation and planned their activities with that in mind. “You have people coming in on what is presumably the worst days of their lives, and you can’t be in their way,” said Chris Hrncair, superintendent for Pepper Construction. “With the ER and pandemic, everyone is coming in for an important reason, and we needed to ensure we weren’t interfering with any of the space needed to assist them.” This small footprint allowance for setup

is one of the factors that went into choosing the equipment used on the pours. For the previous phases of the project, a Putzmeister BSF 38Z-5 was used, and on the fourth storey pour, Patriot’s Sany SY 38-metre was brought in. Both machines offer one-sided support (OSS) for compact outrigger set up which further enabled pumping capability in a small footprint. The Skokie NorthShore Hospital ICU expansion is estimated to complete in 2021. The ER has stayed active successfully and simultaneous with the project schedule, and delays are not expected for the duration of the expansion.

Specifications • Developer: NorthShore Hospital System - IL • General Contractor: Pepper Construction – Chicago, IL • Concrete Placement Contractor: Pepper Self-Perform Group (SPG) – Barrington, IL • Concrete Pumping Contractor: Patriot Conveying and Pumping, LLC - IL • Ready Mix Supplier: Prairie Ready-Mix - IL • Equipment: Sany SY 38 Truck-Mounted Concrete Boom Pump, Putzmeister BSF 47-Metre Truck Mounted Boom Pump  Canadian Concrete Pumper 2021

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Canadian Concrete Pumper 2021

Comprehensive pump and boom inspections will pave the way toward safer workplaces

Regular inspections and maintenance of concrete pumps and booms helps ensure the safety of workers who are working with, and around, this equipment.

n January 1 2021, amendments to British Columbia’s Occupational Health & Safety (OHS) Regulation came into effect— requiring annual concrete pump inspections to confirm a comprehensive review of the structural, mechanical, and control system components of the pump and placing boom. WorkSafeBC says all Canadian employers should adopt the Canadian Standards Association’s (CSA) Z151 requirement— whether their jurisdiction requires them to or not. Regular inspections and maintenance of concrete pumps and booms helps ensure the safety of workers who are working with, and around, this equipment. That’s why WorkSafeBC—BC’s workplace health and safety regulator—made amendments to BC’s Occupational Health & Safety Regulation (OHS) that came into effect this January. Under the new regulation, annual inspections must include a detailed examination of all the machine’s critical components, and be done by qualified people in accordance with the manufacturer and CSA standard requirements. The inspection is only complete when all the critical components have been inspected,

Canadian Concrete Pumper 2021

Above: Under the new regulation, annual inspections must include a detailed examination of all the machine’s critical components, and be done by qualified people in accordance with the manufacturer and CSA standard requirements.

repaired (if required), and the machine is certified as ‘safe for use’ by a professional engineer. These OHS regulations amendments are based on “best practices in engineering,” defined by the 2020 Engineers and Geoscientists of BC (EGBC) Professional Practice Guideline on the “Annual Equipment Inspection and Certification in British Columbia.” In the past, most annual equipment inspections in BC only included a structural component review. “Limiting inspections to structural components no longer reflects best practices in engineering or industry,” says Doug Younger, occupational safety officer at WorkSafeBC, who has expertise in heavy construction equipment and helped drive the amendments to the BC’s OHS Regulation. “These pieces of equipment have the potential to cause serious injuries, or even death, in the event of a catastrophic equipment failure.” Between 2015 and 2019, there were 45 serious injuries and one work-related death involving concrete pumps. AJ’s Concrete Pump in Coquitlam, BC implemented the new inspection and maintenance reviews months ago—well before the 2021 requirement came into place.

“Our annual inspection used to consist of an engineer examining only the machine’s structural components and then signing off,” says Tony Sutherland, managing partner at AJ’s. “Now, I’ve selected the most detail-oriented pump operators and mechanics to perform and document their monthly machine inspections. The machine’s annual mechanical and control inspection is done by our head mechanic who has been confirmed competent by the professional engineer.” These comprehensive inspections—and attention to detail— have benefited Sutherland’s company beyond improved health and safety for his workers. “There have been occasions where we’ve identified issues with the equipment early on that would have cost us a lot of money if we didn’t catch it,” he says. “And reliable equipment also improves customer satisfaction. It’s not good service when your machinery

is breaking down on the site and jobs have to be delayed. You don’t want your customers to go elsewhere to get a job done.” Younger believes all operators and employers across Canada should adopt this comprehensive inspection approach as best practice—even if their local provincial regulations don’t require it. “Employers need to change the way they think about inspections,” he says. “The cost to do an annual structural, mechanical, and control inspection may be higher up front, but the cost of equipment failure can include injuries, loss of life, lost workhours, equipment costs, and even administrative penalties or increased insurance premiums.” The updated guidelines from the Engineers and Geoscientists of BC —Annual Equipment Inspection and Certification in British Columbia—is available online. 

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Canadian Concrete Pumper 2021

The cement and concrete industry targets a carbon-neutral future By Dinah McLeod, CEO of the Global Cement and Concrete Association

here’s no doubt that the greatest single challenge facing our world today is climate change. The degradation of our environment is inextricably linked to other critical economic, social, and political issues, and addressing them will require a collaborative effort across governments, industries, businesses, and communities in order to create a better world. The cement and concrete industry isn’t immune to the impacts of climate change, however, we can play a significant role in minimizing its impact and building a more sustainable future. The steps we take now – at this critical time – will affect our planet for generations to come. The motivation to tackle this has guided the cement and concrete industry for more than 30 years, as we’ve endeavoured to create a more carbon-neutral world. The Global Cement and Concrete Association (GCCA) believes that the challenge of climate change offers a significant opportunity to drive responsible leadership in the manufacture and use of this fundamental building block. The GCCA currently represents around 40 of the world’s leading companies in the global cement and concrete industry, including virtually all Canadian cement manufacturers. Our mission is to foster innovation through the construction val-

Canadian Concrete Pumper 2021

ue chain in collaboration with industry associations, architects, engineers, and innovators. Our association continues to demonstrate how concrete solutions can meet global construction challenges and sustainable development goals. We build on the positive work of many regional and national associations from around the world, including the Cement Association of Canada, which is an influential affiliate across our work programme. The world’s population is expected to reach 9.8 billion people by 2050 and more than two-thirds of inhabitants are expected to live in cities. This exponential growth requires infrastructure that supports crucial amenities such as clean water, sanitation, and buildings. Now and in the future, the world needs strong and adaptable construction solutions that also protect our world from changing climate conditions. We believe that, as an industry, our sustainability ambitions must match the growing demand for our products. Which is why this past September we took the important step in launching our 2050 Climate Ambition on behalf of our member companies. This was a critical milestone for the industry, marking the first time we have come together globally to state our collective ambition to drive down the CO2 footprint of the world’s most-used man-made product,

and deliver society with carbon-neutral concrete by 2050 This statement identifies the key levers that are required to achieve carbon-neutral concrete, including: reducing and eliminating energy-related emissions, reducing process emissions through new technologies and deployment of carbon capture, more efficient use of concrete, reuse, and recycling of concrete and buildings, and harnessing concrete’s ability to absorb and store carbon from the atmosphere. The 2050 Climate Ambition also builds on the longstanding climate commitments and sustainability progress of GCCA member companies and affiliate associations all over the world. It sets out a global vision for the long-term sustainability of concrete as a vital building material that has shaped our modern world. The 2050 Climate Ambition is supported by the Cement Association of Canada and its members who are developing a roadmap adapted to Canada’s operating environment. Our industry’s vision is even more critical as the COVID-19 pandemic continues to impact on our world and countries’ work to “build back better” in order to create a more sustainable future. The GCCA believes that the cement and concrete industry can be a catalyst for the economic and social recovery of our lo-

Now and in the future, the world needs strong and adaptable construction solutions that also protect our world from changing climate conditions. We believe that, as an industry, our sustainability ambitions must match the growing demand for our products. cal communities and the global economy, a position espoused and steadfastly advocated by the Cement Association of Canada to all levels of government in Canada. The cement and concrete industry provides an essential and widely used material to the construction field, which currently represents 13 per cent of global GDP. Within Canada, the construction sector is expected to contribute $304.6 billion by 2023. The cement and concrete industry, which produced around 13.5 million metric tons of cement in Canada in 2018, is a key part of this, contributing 158,000 jobs and $76 billion to

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Canadaâ&#x20AC;&#x2122;s economy. Therefore, as we face the current pandemic, our sector offers an opportunity to put words into actions to build better and support a low-carbon transition towards a more sustainable future that benefits communities of all kinds. As part of this, cities and enterprises can play a consequential role in demanding greener infrastructure. Governments can also support these demands with green stimulus measures that rebalance dependency on non-renewable and carbon-intensive resources. At the same time, cement and concrete manufacturers can be drivers for further respon-

sible industry leadership by rolling out innovative products or processes or collaborating with associations, architects, engineers, and researchers across the full scope of the built environment value chain. All of this is an important first step in laying the future foundation of our industry. Yet there is still much more to be done. The pandemic has created a period of self-analysis and reflection. The world will not just to return to normal and there is a much-needed opportunity for a green recovery, as we seek to refocus and build back better to create a sustainable and prosperous future. ď Ž

6/20/19 9:44 AM

Canadian Concrete Pumper 2021

The World of Concrete (WOC) will move their show and education dates this year due to COVID-19. Seen here is from the 2020 WOC event in Las Vegas. Photo courtesy of the World of Concrete.

World of Concrete 2021 announces new show dates: June 8-10, 2021; Education June 7-10 22

Canadian Concrete Pumper 2021

fter discussions with key stakeholders and feedback from industry-leading concrete and masonry associations, World of Concrete (WOC) made the proactive decision to reschedule WOC 2021 from January to June. The decision to move the dates back several months was not easily reached; however, we felt it was the right choice for all involved. WOC will now take place June 8-10, 2021 and the educational offerings from June 7-10, 2021 at the Las Vegas Convention Center. “We have a commitment to our exhibitors and attendees to provide a valuable and productive face-to-face experience at WOC each year,” said Jackie James, group director, World of Concrete. “This is the first time in our 46-year history we have been faced with circumstances that have caused us to reschedule the event. We feel the new June dates will provide everyone with the necessary time to plan effectively, and allows us to reimagine WOC for a different time of the year. Moving the event from winter to late spring this year will allow for additional outdoor activities everyone can enjoy in the great city of Las Vegas, including top-notch exhibits, new product demos, and exciting spectator events.”

The Las Vegas Convention Center (LVCC) has been awarded the Global Biorisk Advisory Council (GBAC) STAR facility accreditation by ISSA, the Worldwide Cleaning Industry Association. The GBAC program is considered the gold standard for safe facilities, and was designed to control the risks associated with infectious agents, including COVID-19. World of Concrete is also one of the first largescale events to occupy the Las Vegas Convention Center’s $980 million West Hall expansion in June, which will add 1.4 million square feet of space to the existing 3.2 million-square-foot campus. In addition to the exhibit hall, the expansion will feature a striking outdoor plaza, a grand atrium, and state-of-the-art design and technology. We look forward to continuing our role in driving the industry forward, connecting communities and supporting businesses. We look forward to seeing you in

Las Vegas in June 2021. We will also continue to post updates on our website as soon as they become available.

Registration for WOC 2021 will open online in early 2021. 

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Working in the construction industry looks very different today than it did just 11 months ago. Photos courtesy of PCL.

Construction’s response to COVID-19 The COVID-19 pandemic has impacted virtually every aspect of daily life in Canada but has also showcased the resiliency and tenacity of the Canadian construction industry By Paul Adair

Canadian Concrete Pumper 2021

rior to the arrival of the novel Coronavirus (2019-nCoV) in March last year, the Canadian construction and industrial sectors were generally viewed as being strong performers and saw approximately 11 per cent of growth in commercial investment between 2018 and 2019. Once the seriousness of COVID-19 became apparent, however, a chill quickly descended on the industry as the entire country paused to see what might happen next. But then the Canadian construction industry began to do what it does best: building a path through this crisis. “The whole organization, as well as the entire industry, pulled together to start developing the processes and plans needed to help keep our front line safe, and keep construction moving forward,”

says Reg Sopka, regional HSE manager at PCL Construction. “There were some projects that stalled initially, either due to logistics or government mandates, but they have all eventually come back as we demonstrated that we could continue to operate and contain − or even eliminate − the possibility of workplace spread of the virus.” That being said, working in the construction industry looks very different today than it did just 11 months ago. The industry is much more cognizant of physical distancing (not even a phrase before COVID-19) and the number of workers allowed on the job site at any given time. There have also been a number of common industry-wide pandemic mitigation policies and procedures implemented to combat the virus, such

as sending office-based people home, learning the appropriate use of PPE, active screening questionnaires and temperature checks, establishing placing hand sanitizer or hand washing stations, making walkways directional based on flow, increased cleaning protocols with approved disinfectant in all high traffic areas, and visible signage to hammer the safety message home. Getting used to the new rules and restrictions has created challenges for some companies in the industry, particularly when it came to meeting the demand for hand sanitizer, cleaning agents, and PPE; most notably, N95 masks and respiratory protection. “It really caused some stress early on

as we were trying to predict the next shortage while aligning ourselves with the numerous health agencies,” says Sopka. “There were times when we considered shutting down operations if we couldn’t find enough supply, but our procurement group did an excellent job of making sure that our operations across North America had access to the right type of supplies to keep going.” In the long months ahead, PCL anticipates that industry will continue to perform as it has to now until the word comes from the appropriate government agencies indicating that it can relax. As the pandemic circulates across the globe, some of the long-term effects of the supply chain will remain un-

known, and what that does to any future opportunities continues to generate uncertainty in the sector. “What the whole COVID-19 experience so far has taught us is a lot about how to respond to unforeseen or extreme circumstances, as well as showcasing the resilience of our people, partners, and trades, which is remarkable,” says Sopka. Across Canada, the Canadian Construction Association endeavours to give voice to its more than 20,000 members of the construction industry working in, or with, Canada’s institutional, commercial, and industrial (ICI) space. In this role, the CCA has played an important part in the ongoing fight against COVID-19, especially in those early days of the pan-

Getting used to the new rules and restrictions has created challenges for some companies in the industry, particularly when it came to meeting the demand for hand sanitizer, cleaning agents, and PPE; most notably, N95 masks and respiratory protection

Canadian Concrete Pumper 2021

demic where little was known about the virus, and working alongside governments as a valued partner to better navigate the pandemic to ensure that the construction sector could keep working. “Almost immediately, we had multiple calls with our members, colleagues, and with public health authorities to gather the best possible information at the time so that construction could go on in spite of COVID-19,” says CCA president Mary Van Buren. “Our industry very quickly came together in the spirit of collaboration to share best practices and, because of that, in most provinces (with the exception of Québec and − for a short time – Ontario) our work was able to continue.” At the end of March 2020, the CCA released its initial draft of the COVID-19 Standardized Protocols for All Canadian Construction Sites and strongly encouraged the construction industry to implement the measures within on prevention, detection, and rapid response. The document provided best practices and offered a consistent national approach for industry to follow to protect itself and its workforce from the virus, as well as to help mitigate the spread of COVID-19. As the understanding of the pandemic has evolved over time and new best practices have emerged, the CCA has made sure the document remains current and has published updated versions as needed. While the pandemic has been difficult, there have also been some silver linings to COVID-19, such as the promotion of higher health standards and more stringent hygiene protocols at job sites across the country, as well as putting a greater focus on maintaining the mental health and wellness of construction workers. In addition, the pandemic has created an opportunity to address the looming workforce shortfall facing industry as the Baby Boomers retire and younger generations demonstrate a decreasing interest in considering construction as a career. “Many workers across Canada have become displaced because of COVID-19,

Canadian Concrete Pumper 2021

and construction just might become more attractive for those looking to find new, good-paying careers,” says Van Buren. “People are beginning to see construction in a new light because it’s an essential, safe, and highly valued industry that has been able to work during this pandemic. Not every industry can say that.” Looking ahead, COVID-19 is sure to cast a long shadow over the Canadian construction sector. Although the industry has done reasonably well through the first wave of the virus as it works through its backlog of projects, now that we are in the second wave, there has been a decline in both the number and value of permits issued this year compared to last. Part of the reason for this can be potentially linked to diminishing investor confidence over the course of the pandemic, as well as that municipalities may no longer have enough money in the bank to invest on much-needed infrastructure projects after – rightly − spending so much of their annual budgets on health priorities. “The construction sector is concerned that, unless new projects start to come out faster, there will be a significant gap between the time companies wrap up current projects and take on new ones,” says Van Buren. “This will have the greatest impact on our medium-to-small trade contractors, which make up 70 per cent of the industry; those who will often take out a lot of financing in order to ramp up a project. It’s tremendously important that federal, provincial, and municipal governments all work together to get these kinds of projects out and keep them moving.” Throughout the COVID-19 pandemic, the CCA’s message has remained consistent and clear: that construction should continue as long as it is safe to do so. The construction industry has responded to this message by ensuring that its facilities and job sites are as safe as possible, and by professionally adapting to whatever the virus has thrown at them to date. “Virtually overnight, the Canadian

construction industry has had to make significant changes to their daily operations and routines, and has proven its resilience in tackling the challenges posed by COVID-19,” says Van Buren. “The construction industry can take pride in how it has come together to surmount this challenge. We’re certainly not out of the woods yet, and there will be more challenges ahead, but we have shown that we are an economic sector that can withstand difficult times and come through them stronger than ever.” As the second wave of COVID-19 has clearly demonstrated, the Canadian construction sector will need to remain vigilant against the threat of the virus until such time as a vaccine becomes readily available. To that end, the Government of Canada last April allocated approximately $1 billion to support the Plan to Mobilize Science to Fight COVID-19, which included vaccine development, treatment production, and virus tracking. The federal government has also invested an additional $1 billion to secure access to vaccine candidates, signing agreements with numerous companies to secure up to 358 million doses of their different COVID-19 vaccine candidates once they’re made available. “Access to safe and effective vaccines is critical for Canada, and the government is doing its part to help support innovative Canadian companies in performing the research needed to demonstrate that their products meet Health Canada’s high safety, efficacy, and quality standards,” said Minister of Health Patty Hajdu in a press release. Health Canada approved the Pfizer-BioNTech COVID-19 vaccine in early December and by the middle of that month the country started receiving shipments to distribute to eligible groups. Additional vaccines from Moderna and AstraZeneca are still being tested and millions of vaccines could start being deployed in Canada as soon as January 2021. These vaccines would first be assigned to select priority groups, with a full rollout throughout the spring. 

Putzmeister America, Inc. adds 33Z-meter truck-mounted concrete boom pump to product line

utzmeister America, Inc. announced the new 33Z-meter Concrete Boom Pump to enhance the Putzmeister 30-meter class portfolio this past October. The time-proven design of the 33Z features a reduced outrigger footprint and the latest Ergonic® 2.0 technology. “The 33-meter pump is the perfect addition to the 30-Meter class portfolio,” said Dave Wright, chief engineer. “With the 32-Meter no longer in our portfolio, we created an enhanced 33Z model for that market segment. It shares many of the same qualities of the BSF 36- and 39-Meter.” The 33-meter shares a pedestal with the 36-4 that is strong and stable. The pedestal is based on the one used on the 385- and 39-meter models that have high product maturity. The 33-meter gains automatic lubrication of the four-point bearing and A-hinge, so there is no need to climb up onto the machine to reach lubrication points. Because the 33-, 36-, and 39-meter pumps are “cousins”, commonality of spare parts provides a significant service advantage to multiple pump fleets. However, the biggest advantage of the new 33-meter boom pump is the low unfolding height of 24.9 feet. The 33Z-meter boom pump is immediately available for purchase. For more information about the 30-meter class, visit Putmeister.com or contact your local sales representative.

About Putzmeister America, Inc. Specializing in concrete and material placing equipment for the construction industry, Putzmeister America, Inc. is the North American division of one of the world’s most recognized and respected heavy equipment manufacturers, Putzmeister Concrete Pumps GmbH. Putzmeister America, Inc. manufactures a complete line of truck-mounted concrete boom pumps, separate placing booms, truck-mounted telescopic belt conveyors, and trailer-mounted concrete pumps, as well as mortar, grout, shotcrete, plaster and fireproofing pumps and mixers, industrial pumps, tunneling machinery and pipeline systems. Some of the industry’s best known brands, such as Telebelt® and Thom-Katt®, are part of the Putzmeister America family. The company’s workforce is dedicated to hands-on customer support and advancing the industry in design and technical innovation. Visit www. PutzmeisterAmerica.com for more information on the company, its products and services. 

Canadian Concrete Pumper 2021

The importance of monitoring concrete temperature differentials during cold weather

Wireless sensors, like SmartRockâ&#x201E;˘, are placed within the concrete formwork and secured on the rebar before pouring.

By Alicia Hearns

Canadian Concrete Pumper 2021

uring the winter months, when snow has taken over every inch of not only your driveway, but also your jobsite, it can be incredibly frustrating to carry on with regular construction operations. If you are working on a concrete structure, especially one with mass elements, the process of monitoring the temperature of your concrete becomes even more critical in these weather conditions. Generally speaking, the higher the cement content, the more heat will be produced. However, when the exterior of the

mass concrete is exposed to an environment that has a lower temperature, it cools down while the temperature of its core remains the same. Because the core is at a higher temperature, it expands in volume while conversely, the exterior contracts due to its cooler temperature. As a result, these opposing forces create tension. If that tension exceeds the tensile strength of the concrete, thermal cracking will occur. One activity that helps engineers, contractors, and project managers minimize

The SmartRock Wireless Maturity Sensor. Inset: Temperature data from the SmartRock is collected by the sensors and uploaded to an app on any smart device using

cracking in mass concrete is measuring its concrete temperature differential. This specification is the difference between the temperature of the core and the exterior of a mass concrete element. The higher the concrete temperature differential, the more the structural integrity and service-life of a concrete structure are jeopardized. According to ACI 30116: Specifications for Structural Concrete, the maximum concrete temperature differential should not exceed 35 °F (19 °C) during curing. By closely monitoring temperature variances in your concrete element during curing you will ensure that the strength, quality, and durability of your structure is acceptable. Dropping temperatures can therefore significantly impede the strength development and durability of your concrete structure. For this reason, accurate and

consistent readings of your concrete temperature are important so that the quality of your structure is optimized. When working in cold weather conditions, the faster you can gather concrete strength data, the better. Wireless sensors, like SmartRock™, are placed within the concrete formwork and secured on the rebar before pouring. The SmartRock sensors measure temperature at two points per sensors, located in the body of the sensor and the tip of the temperature cable. This allows for easy temperature differential analysis. Temperature data is collected by the sensors and uploaded to an app on any smart device using a wireless connection. There is no need to lift heavy heating blankets to collect data from a thermocouple. You are also notified right away if the temperature of your in-situ concrete has dropped too low.

This method not only allows for highly accurate data to be collected and reported, but it also enables project members to make timely and well-informed decisions onsite regarding the temperature of their element during the curing stages of the project. Equipped with real-time results, contractors can improve the heating process, decrease energy costs, and save time in their project schedule by knowing when to move on to subsequent construction operations, such as formwork removal or post-tensioning. Alicia Hearns is a content marketing specialist with Giatec Scientific Inc., a global company revolutionizing the construction industry by bringing smart IoT-based testing technologies and real-time data collection to the forefront of every jobsite. Learn more at www.giatec.ca.  Canadian Concrete Pumper 2021

Index to advertisers An-Mar Concrete Pumping Co. Ltd........................................................................................23 Construction Forms, Inc..........................................................................................................IFC DY Concrete Pumps Inc.............................................................................................................5 ICC Distribution Group, LLC...................................................................................................... 7 Pump Pro.....................................................................................................................................19 Putzmeister America Inc................................................................................... 6, 16 & 17, 21 Southeast Concrete Pumping Ltd..........................................................................................23 The Office of Experience / Mack Trucks........................................................................... OBC World of Concrete........................................................................................................................3

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