Report gauges building codes’ impact on embodied carbon in project specs

来源: New Buildings Institute, Portland, Ore.; CP staff The most recent New Buildings Institute (NBI) report offers language to incorporate embodied carbon requirements in codes, and explains the need for jurisdictions to address such criteria for materials or products with the highest carbon dioxide emissions factors. “Lifecycle GHG Impacts in Building Codes” presents potential CO2 benchmarks or thresholds for ready mixed…

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Aggregate Industries Pacific Northwest adds Cowden operations

来源: LafargeHolcim, Chicago; CP staff LafargeHolcim has acquired the ready mixed concrete and aggregate assets of Cowden Inc. in Bellingham, Wash., consummating the transaction through its Aggregate Industries subsidiary. “The acquisition strengthens our presence in this strong growth market while contributing to Aggregate Industries’ overall strategy to expand our range of sustainable construction materials,” says René Thibault, head of North…

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Asset gains and carbon cuts equal an extraordinary year

By Don Marsh The close of any other calendar might confine this column to revisiting a merger and acquisition wave across ready mixed and manufactured concrete, but 2021 could be remembered as much for carbon dioxide emissions action as cement, aggregate and concrete production investment. On the latter front, stock prices for public companies and high valuations for private peers…

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Astec and CarbonCure Technologies enter sales, service partnership

Tennessee-based plant equipment leader Astec Industries has become exclusive ready mixed concrete market channel partner in the U.S. and Canada for CarbonCure Technologies. Collaboration with the Halifax, Nova Scotia developer of namesake carbon dioxide injection and mineralization technology for fresh concrete supports sustainability measures under the OneAstec business model. Astec’s BMH, Con-E-Co and RexCon concrete batch plant brands will offer…

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Holcim to cut water consumption 
in concrete, upstream operations

豪瑞公司aims to reduce cement, aggregates and ready mixed concrete operations’ respective water intensities by 33 percent, 20 percent and 15 percent through 2030. Applicable to namesake, Lafarge, Aggregate Industries, Lattimore Materials and other North America or overseas brands, the targets are part of a global strategy to become nature-positive by restoring and preserving water and biodiversity, while bringing…

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Cement developer Hoffmann lands U.S. patent for alkaline powder

After nearly three years of examination, the United States Patent Office has validated the Hoffman Green Cement Technologies H-EVA patent (US 2021/0179492 A1). Promoted as an alternative to portland cement for ready mixed concrete, mortars and plaster, H-EVA encompasses flashed clay sludge, natural or synthetic (flue gas desulphurization) gypsum, plus proprietary chemical “activators and superactivators.” The mineral processing and chemistry…

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Brooklyn Belts

By Don Marsh New ready mixed concrete plants bordering the top two U.S. population centers’ urban cores have common threads: Remediated brownfield siting; twin alley, transit mixed design; 350-450 yd./hour, new capacity ratings absent their city limits for generations; and, proximity (< 5 miles) to new reinforced concrete buildings reaching local- or national-record heights thanks to mixes in the 10,000-plus…

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Value Tested

RMC Research & Education Foundation books 30 years of cutting-edge programs to advance the concrete industry BY JULIE GARBINI In 1991, the RMC Research & Education Foundation was founded with a modest ambition: To fund the purchase of a million-pound testing machine at the National Ready Mixed Concrete Association’s (NRMCA) A.H. Smith Research Laboratory in College Park, Md. Industry leaders…

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4K video rewrites site delivery tracking from crane, aerial perches

来源: Quartz Systems, San Francisco; CP staff Construction technology services provider Quartz demonstrated the quality control and productivity gauging potential of its new Concrete Deck Analysis program at World of Concrete 2021. The integrated hardware and software platform uses ultra-high resolution 4K video streams, machine learning, plus a web and mobile app to enable project principals to track and understand…

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PRODUCERS – June 2021

Anderson Concrete Corp., one of Ohio’s oldest and largest ready mixed concrete producers, has named Rod Jenkins as vice president of Production, following nine years as quality control manager. He has worn many hats within the organization, beginning as a driver in 1998 and soon moving to the plant department, where he climbed the ranks from laborer and operator to…

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