Ground glass performance pozzolan enters commercial production

Sources: Urban Mining Northeast, New Rochelle, N.Y.; CP staff Urban Mining CT is approaching large scale processing of Pozzotive, a concrete-grade pozzolan derived from glass raw feeds regardless of color, size, presence of ceramics or cleanliness. A charter facility in Beacon Falls, Conn. is equipped for 50,000 tons’ annual output. 

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Natural pozzolan exhibits potential as fly ash substitute

Sources: Sunrise Resources Plc, Cheshire, U.K.; CP staff

Sunrise Resources 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. 

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Charah slag, pozzolan finishing technology debuts in the Empire State

Charah ii

Fly ash processor Charah Solutions Inc. has sited its first facility with patented granulated blast furnace slag grinding technology at the Port of Coeymans, 100 miles up the Hudson River from New York City. With barge, rail and truck access, it will finish MultiCem-branded slag cement to be distributed through the company’s MultiSource materials network.

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Pozzolan deposit positions Boral to step up Western state ash volume

Sources: Boral Resources, Atlanta; CP staff

Boral Resources has acquired 4.5 million tons of natural pozzolan contained in surface piles at a central Utah mine. “Extensive testing and characterization of the materials shows that they can be blended with several Western fly ash sources to extend the volume of concrete-quality pozzolans available in Western states markets,” says Boral CM Services Vice President, Technology Rafic Minkara, Ph.D., P.E. “This material can deliver enhanced ASR mitigation when blended with some fly ashes. Furthermore, the material’s location at an active and fully permitted site greatly reduces development costs and timelines.”

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