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Tag: SCM

Agency powers glass-derived pozzolan production in Pacific NW

Concrete News

Sources: Progressive Planet Solutions, Kamloops, British Columbia; CP staff A Sustainable Development Technology Canada (SDTC) commitment of up to $4.6 million, phased through 2028, positions Progressive Planet Solutions to proceed with a pilot plant for PozGlass, a supplementary cementitious material. The company’s patent-pending process entails sodium extraction from post-consumer, soda-lime glass; combining sodium and carbon dioxide to form sodium carbonate;…

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Eco Material eyes strategic initiatives after closing major loan facility

Concrete News

Sources: Eco Material Technologies Inc., South Jordan, Utah; CP staff An $800 million Green Term Loan Facility maturing in 2032 affords Eco Material Technologies enhanced financial flexibility for capacity investments extending the company’s role in North American cementitious materials and concrete production. Approximately $665 million of the proceeds were used to redeem existing 7.875 percent senior secured green notes due…

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Carbon Limit seeks to tame heat island effect with CoolCrete SCM

Concrete News

Sources: Carbon Limit, Boca Raton, Fla.; CP staff Carbon Limit, developer of the CaptureCrete admixture proven to sequester carbon dioxide in finished slabs or structures, has announced CoolCrete, a concrete additive line infused with heat-reducing capabilities. To bring this first-of-its-kind product to commercial and residential projects worldwide, Carbon Limit has tapped two licensing partners, NCP Industries and Bison Innovative Products,…

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ACI Foundation funds UHPC, SCM, concrete specimen research

Concrete News

Sources: American Concrete Institute Foundation, Farmington Hills, Mich.; CP staff Among 10 projects receiving 2022 ACI Foundation Concrete Research Council grants, two address ultra-high performance concrete: “Maximum Reinforcing Ratio for Reinforced UHPC Beams: Towards Slender Elements,” under principal investigator Yi Shao, University of California, Berkeley; and, “Shear Behavior of UHPC Considering Axial Load Effects,” under Dimitrios Kalliontzis, University of Houston.…

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Lehigh Redding mill to commercialize kiln exhaust-derived SCM production

Concrete News

Sources: Lehigh Hanson Inc., Irving, Texas; Fortera Inc., Campbell, Calif.; CP staff Teaming with Silicon Valley material technology developer Fortera Inc., Lehigh Cement plans construction of a modestly scaled plant at its Redding, Calif. mill with an eye to transforming kiln exhaust into a supplementary cementitious material. The facility will mark the commercial debut of a proprietary recarbonation process in…

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EPA revisits SCM in procurement guidelines; honors CalPortland and Cemex

Concrete News

The U.S. Environmental Protection Agency has opened a public comment period through July 6 on the Agency’s current list of 61 items that are or can be made from recovered materials in eight Comprehensive Procurement Guidelines (CPG) categories, plus recommendations to federal agencies on purchasing such items. The largest category, Construction Products, includes blended cement or concrete containing fly ash, ground granulated blast furnace slag and silica fume.

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Alternative SCM, industrial mineral blend catapults C-S-H formation

Concrete News
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California-based construction materials specialist Surface Tech is commercializing an alternative supplementary cementitious material (ASCM) whose requisite chemical profile (silicon dioxide + aluminum oxide + iron oxide content > 75 percent) belies binder-optimizing performance potential exceeding that of leading SCM. While fly ash, GGBF slag and silica fume tend toward dosages starting at 10 percent by weight of portland cement, Juno XP has exhibited marked strength development characteristics at 2.5 percent and 5 percent when measured against portland cement controls—particularly at seven- and 28-day cylinder breaks.

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FHWA assesses SCM, natural pozzolans within best pavement practices

Concrete News
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A new Federal Highway Administration Tech Brief cites benefits and drawbacks of fly ash, slag cement, silica fume and natural or alternative pozzolans for transportation structure-grade concrete. “Supplementary Cementitious Materials — Best Practices for Concrete Pavements” (FHWA-HIF-16-001) outlines how agencies overseeing road construction and maintenance confront increasing service demands on concrete structures, expectations for reduced environmental impact, plus lower initial and lifecycle costs.

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FHWA probes SCM, natural pozzolans within best pavement practices

Concrete News

Sources: Federal Highway Administration; CP staff

A new FHWA Tech Brief cites benefits and drawbacks of fly ash, slag cement, silica fume and natural or alternative pozzolans for highway-grade concrete. “Supplementary Cementitious Materials — Best Practices for Concrete Pavements” (FHWA-HIF-16-001) outlines how transportation agencies approach increasing service demands on concrete structures, along with expectations for reduced environmental impact plus lower initial and lifecycle costs.

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Australians test carbon dioxide-capturing carbonate production

Concrete News

Sources: University of Newcastle; CP staff

A new method for permanently storing carbon dioxide emissions generated from fossil fuels and other industrial processes is at the heart of a mineral carbonation pilot plant to be built at the University of Newcastle’s Institute for Energy and Resources.

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