A nanotechnology-driven business under Gerdau S.A., São Paulo, has a developed a line of water-based graphene nanoplate admixtures formulated to reduce portland cement requirements in mix designs and improve finished concrete mechanical performance. The premier Gerdau Graphene product, NanoCONS W104, especially suits precast production and delivers: Like other nanotechnology developers focused on carbon atoms forming 2D (plate or platelet) or…
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Webcor marks first TRUE Zero Waste job in public construction
The Contra Costa County Administration Building and Redevelopment Project in Martinez, Calif. recently became the world’s first Total Resource Use and Efficiency (TRUE) Gold for construction-certified public project, setting a new sustainability benchmark for such work the world over. The facility rose on the site of a 12-story county building and jail, demolition of which yielded materials for the new…
Read MoreEnniss Inc., Martin Marietta host Skate4Concrete campers
Skate4Concrete, backed by the Project Cornerstone organization and the Concrete Advancement Foundation, delivered its first-ever Construction Summer Camp this year. In three days, 22 students (ages 15-18) visited three San Diego County locations and explored the science of, pathway to, and job opportunities within the concrete and construction materials industry. The Associated General Contractors Apprenticeship and Training Trust in San…
Read MoreUncertainty tempers optimism in construction outlook survey
Researchers in the Construction Services Group of Marcum LLP, a leading accounting and advisory firm in New York, paint an overall positive view of current and future market trends in their just-released 2024 Marcum National Construction Survey. Key findings gleaned from responses to a 27-point survey of executives in building and nonbuilding markets include: “Despite the challenges facing the…
Read MoreFly ash-grade aluminosilicates surface in lithium processing
Toronto-based Rock Tech Lithium Inc. cites the potential to extract a supplementary cementitious material from leached spodumene concentrate (LSC), a byproduct of its lithium hydroxide processing whose typical chemical composition is primarily aluminosilicates (65 percent SiO2, 25 percent Al2O3). With an eye to electric battery markets, Rock Tech plans to commercialize the lithium hydroxide process through construction of converter facilities…
Read MoreLafarge Canada and Innocon hit community support milestone
Lafarge Canada subsidiary Innocon has been collaborating for more than a decade on the revitalization of Toronto’s Regent Park neighborhood, the oldest and largest social housing project in Canada. In addition to providing building solutions for Daniels Spectrum, Regent Park’s arts and cultural hub, the producers have also invested $800,000-plus since 2013 via the People & Planet Fund. Their contribution…
Read MoreBattery electric current reaches Far East mixer truck fleet
Pan-United Corporation Ltd. has unveiled the Singapore market’s first electric-powered concrete mixer truck. Engineered and built by China’s SANY Group, the vehicle has a sizeable 350-kWh battery, which serves up to 360 kW at peak power and takes two hours to achieve a full charge. For comparison, a typical Category A passenger EV with a battery capacity of 78 kW…
Read MoreWJE tests low-carbon, data center slab mixes for tech leaders
The Open Compute Project Foundation (OCP) has tapped construction materials testing and engineering giant Wiss, Janney, Elstner Associates Inc. (WJE) to measure a set of low embodied carbon concrete mixes for their potential in data center floors. The mixes use supplementary cementitious materials plus a portland cement alternative binder. Derived from feedstocks and commercially available processes, the latter is yet…
Read MoreCemTech 3D printing bandwidth ignites outdoor furnishings prospects
Michigan-based FlameCraft has unveiled The Reform Collection, launching this quarter for online sales and promoted as “a groundbreaking 3D-printed fire pit, combining cutting-edge design with sustainable practices” and marking “a new era in outdoor living.” The series uses advanced printing technology at a CemTech facility in Oceanside, Calif. It allows for precise and customizable designs, ensuring a unique and durable…
Read MoreMarMac admixture looks to Microban for bacteria-inhibiting performance
MarMac Applied Infrastructure Sciences has launched Admixture AMX 5500, a water-based, ultra-low VOC agent formulated with Microban International antimicrobial technology to curtail bacterial growth throughout the service life of concrete surfaces and structures. The Microban ingredient in AMX 5500 works to rupture the microbial cells and terminally disrupt the cell walls of fungi, molds and mildew without altering the visual…
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