Sources: Ash Grove Cement, Overland Park, Kan.; CP staff Ash Grove Cement has acquired Geofortis LLC, operator of a Toole, Utah raw natural pozzolan milling and classifying line and nearby deposit. Since starting production in 2021, Geofortis has obtained approvals for its supplementary cementitious material from agencies in California, Colorado, Nevada and Utah. They are among Western states where public…
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Drake Cement outlines Arizona natural pozzolan deposit mining plan
Sources: U.S. Department of Agriculture, Forest Service; CP staff The USDA Forest Service has opened to public comment a 20-year Mining and Reclamation Plan of Operations that Phoenix-based Drake Cement LLC penned with an eye to extracting 300,000 to 500,000 tons of concrete-grade, natural pozzolan from a Kaibab National Forest parcel. The deposit is part of the existing Williams Quarry,…
Read MoreDesert-derived natural pozzolan tests favorably as fly ash alternative
Sunrise Resources Plc of Cheshire, U.K., reports successful demonstration of a material, mined at the CS Pozzolan-Perlite Project in Nevada, as a substitute for fly ash in concrete. Prior observation of the natural pozzolan entailed mortar specimens, while more recent tests have been conducted on concrete samples and involved a major integrated cement and ready mixed producer.
Read MoreNatural pozzolan exhibits cement-optimizing capacity in block and paver mixes
In a follow up to a November 2013 report on Active Minerals’ Acti-Gel 208, “Rheology modifer, anti-settling agent suits zero slump to SCC mixes,” Concrete Products examines the natural mineral additive’s latest application: Replacement of up to 30 percent of cement in concrete block and paver mixes, netting potential cost savings up to $0.02/unit.
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