A just-closed $46 million Series A funding round will support commercial scale production and further market development of Terra CO2 Technology’s OPUS SCM (Supplementary Cementitious Material) and BCM (Blended-Cementitious Material) brands, which offer alternatives to Class F fly ash (10-40% dosage rate), as regional market conditions warrant, and low-carbon substitutes (≤ 50%) for portland cement. “Our technology is unique in…
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Boral to Make Lightweight Aggregate from High Carbon Residuals
Boral, the leading marketer of ASTM C618-grade fly ash, has secured U.S. rights for processing ceramic lightweight aggregate from high carbon residuals generated at coal-fired power stations or impounded at their sites or designated landfills.
Read MoreLimestone Processor Enters Concrete Market
Huber Carbonates launched HuberCrete, a series of ground calcium carbonates for fly ash substitution and self-consolidating concrete mixes, at the 2018 Precast Show in Denver. The product is processed in Prime, Preferred and Extra Fine grades of these respective median particle size and Blaine fineness profiles: 15-24 µm, 300-500 m2/kg; 8-13 µm, 500-700 m2/kg; and 3-5 µm, 700-1,000 m2/kg.
Read MoreBoral Ltd. Acquires Headwaters Inc.
Boral Ltd. will acquire Headwaters Inc. for $24.25 per share in cash, a deal valued at $2.6 billion, according to the companies.
Read MoreAggregate Industries Products Central to Sustainable Construction Project
Aggregate Industries US made a huge contribution to the new MGM National Harbor project on the eastern shore of the Potomac River, just south of Washington, D.C. The 1 million-sq.-ft. facility – which will feature gaming, lodging, entertaining, dining, retail and parking space – is a showcase for sustainability.
Read MoreEPA Will Not Regulate Fly-Ash As Hazardous Material
The Obama administration announced the first federal regulations for disposal of fly-ash from power plants in an attempt to shield the environment from the toxic substance, however it will not define fly-ash a “hazardous material.”The new rule from the Environmental Protection Agency (EPA) sets structural integrity standards for all existing and new disposal sites to reduce the chances that they…
Read MoreLimestone Cited as Benefit to Green Concrete
By Mark S. Kuhar Adding limestone powder to “green” concrete mixtures – those containing substantial amounts of fly ash, a byproduct of coal-burning power plants – can significantly improve performance, according to researchers from the national Institute for Standards and technology (NIST) and the Federal Highway Administration (FHWA).
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