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

Sources: 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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