Sources: Rock Tech Lithium Inc., Toronto; CP staff Rock Tech Lithium 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…
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Aercon, Litecrete form autoclaved aerated concrete joint venture
A new joint venture between Aercon LLC, Haines City, Fla. autoclaved aerated concrete producer, and Litecrete S.A. de C.V., Mexico-based parent of Miami steel fabricator and erector Litecrete Inc., plans to build a 120,000-sq.-ft. Kerrville, Texas plant dedicated to thin, reinforced AAC panels for buildings of wood or light gauge metal construction. Scheduled for 2025 start up, the $40 million…
Read MoreCarbonCure brings home Heirloom Direct Air Capture carbon dioxide
CarbonCure Technologies, Halifax, Nova Scotia, and its concrete producer licensees will mineralize and permanently store atmospheric carbon dioxide from Heirloom Carbon Technology Direct Air Capture (DAC) assemblies under a two-year agreement. The plan advances the DAC-to-concrete storage pathway demonstrated earlier this year at the Central Concrete Supply Co. headquarters plant in San Jose, Calif. Based in Brisbane, Calif., Heirloom Carbon…
Read MoreCemex turns page on 1990s signature
Sources: Cemex S.A.B. de C.V., Monterrey, Mexico; CP staff Cemex has unveiled an updated brand consistent with a corporate goal of helping the world reach the next frontier of sustainable living by becoming a more agile, innovative, and approachable company. The global cement, aggregate and concrete producer is changing its logo for the first time in more than 30 years,…
Read MoreA new portal for Buy Clean era
We are into a second decade of covering ready mixed and manufactured concrete producer response to construction market catalysts driving Environmental Product Declaration preparation and submittals: The Architecture 2030 Challenge (2012), compelling proof of lower embodied carbon materials or products in project specifications, and the U.S. Green Building Council LEED v4 standard (2014-16), the first broad-based mechanism incentivizing suppliers, producers…
Read MoreHeidelberg Materials picks up where Lehigh Hanson left off
Sources: Heidelberg Materials, Irving, Texas; CP staff Consistent with a global rebranding its German parent company announced last fall, Lehigh Hanson Inc. enters 2023 as Heidelberg Materials, a new identity for the cement, aggregate and ready mixed concrete producer’s corporate office and core Lehigh Cement and Hanson Aggregates businesses. A majority of the company’s other subsidiaries in the U.S. and Canada…
Read MoreThe Employment Pendulum Is Swinging The Other Way
Just a couple of months ago, I wrote about the ever-challenging employment picture; next to managing material costs and fuel prices, this is by far the biggest issue of daily operation that continues to be a thorn in the side of every concrete producer and contractor. But now, I am starting to see a swing back the other way. Even…
Read MoreCalPortland appeals to Supreme Court in Teamsters case decision
Sources: CP Staff; U.S. Supreme Court; Coalition for a Democratic Workplace CalPortland Co. has petitioned the U.S. Supreme Court to reverse the Washington State Supreme Court’s dismissal of a suit in which the cement, aggregate and concrete producer seeks restitution for property damage that International Brotherhood of Teamsters Local 174 officers and members caused during commencement of a strike. Court…
Read MoreRMC Foundation strength predictor model picks up where Duff Abrams left off
The latest RMC Research & Education Foundation report, “A Concrete Strength Model to Optimize Concrete Mixtures,” and companion Excel tool equip producers and practitioners to pinpoint appropriate binder dosages and limit potential overdesign as measured in 28-day concrete specimen compressive strengths exceeding psi targets. Report author and Florida consultant Edwin J. Dunstan Jr. refined his model based on observations from…
Read MoreOSHA rules on fatality involving powered mixer drum work
Sources: Occupational Safety and Health Administration; CP staff OSHA has proposed $43,500 in penalties after determining that a Northeast ready mixed concrete producer could have prevented a worker from suffering fatal injuries during an October 2021 mixer truck repair. As the worker attempted to secure a fabricated plate near the discharge chute, the mixer drum began to turn and the…
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