Clark Pacific taps arrays on fast track to renewable energy-powered plants

Sources: Clark Pacific, West Sacramento, Calif.; CP staff  A top player in West Coast precast, prestressed concrete production and related design-build work, Clark Pacific has entered a partnership with NewGen Energy that will see solar array installations meeting nearly 100 percent of electricity requirements across three California concrete operations. Enlisting the Loomis, Calif. array engineer and installation services provider in…

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Blair Block moves first to commercialize CarbonBuilt technology

Sources: CarbonBuilt, Los Angeles; CP staff Alabama’s Blair Block projects an early-2023 debut for low-carbon concrete masonry units produced with the CarbonBuilt Reversa carbon dioxide capture and mineralization process. Reversa deployment stands to reduce Blair Block products’ carbon footprint upward of 80 percent with no compromise on price, performance or plant operations. A production line retrofit at the producer’s Childersburg…

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Butler Concrete optimizes diesel combustion with hydrogen, oxygen device

Sources: Empire Hydrogen Energy Systems Inc., Vancouver, B.C.  Butler Concrete and Aggregate Ltd. of Victoria, B.C. is testing a fuel enhancement system on its mixer truck fleet with an eye to improved fuel efficiency, plus lower carbon dioxide and nitrogen oxide emissions. Mounted near the mixer gear box, the Empire Hydrogen system uses electrolysis—initiated through stainless steel plate filters and…

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ACI launches Center of Excellence for Carbon Neutral Concrete

Source: American Concrete institute, Farmington Hills, Mich. The latest ACI Center for Excellence will focus on transforming the concrete industry into a proactive, unified group actively engaged in developing and employing existing or new technologies to reduce finished structures’ carbon footprint. NEU: An ACI Center for Excellence for Carbon Neutral Concrete, was launched at the Institute’s spring convention in Orlando.  …

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IW EPD: Ready mixed producers shrink carbon footprint by one fifth

Sources: National Ready Mixed Concrete Association, Alexandria, Va.; CP staff National Ready Mixed Concrete Association producers have lowered their carbon footprint by 21 percent in seven years, according to a Life Cycle Assessment (LCA) report and Industry Wide Environmental Product Declaration (IW EPD) published earlier this month. NRMCA has tracked environmental impacts—carbon dioxide emissions, energy and water use, and waste…

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Cemex ups portland limestone powder availability in the Southeast

Sources: Cemex USA, Houston; CP staff Cemex USA has increased portland limestone cement (PLC) output at its Brooksville, Fla., and Demopolis, Ala. plants for concrete customers and contractors across the southeastern United States. With finely graded limestone blended at up to 10 percent, PLC or Type IP powder has a lower carbon footprint than ordinary portland cement due to the…

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Foamed glass aggregate producer plans Florida satellite plant

Sources: AeroAggregates, Eddystone, Pa.; CP staff AeroAggregates has broken ground on a Dunnellon, Fla. production facility for ultra-lightweight foamed glass aggregate. Scheduled for October 2021 start up, the operation will turn post-consumer recycled glass into a 0.375- to 2.5-in. graded material suiting concrete block mixes, plus fill for placement over soft compressible soils or underground utilities, or along embankments. 

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Cement developer secures U.S. patent for alkaline ettringitic powder

Sources: Hoffmann Green Cement Technologies, Paris; CP staff  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…

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Chryso tempers concrete carbon factor in new admixture series

Sources: Chryso Group, Paris; CP staff The parent company of Texas-based Chryso Inc. has announced a global range of admixture products and companion services aimed at controlling the carbon footprint of ready mixed and precast concrete. Paired with supplementary cementitious materials, EnviroMix agents enable carbon dioxide emissions reduction up to 50 percent when measured against conventional concrete mix designs, while…

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