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Tag: pozzolan

Circular Silicon

Don Marsh

Riccelli-Northern Ready Mix, Klaw Industries prove Performance of recycled glass-derived pozzolan A carbon management-minded approach to infrastructure specifications has compelled the City of Syracuse, N.Y. to adopt Pantheon, a recycled glass-derived supplementary cementitious material, as a 20-30 percent replacement for portland cement in concrete. Officials have observed the pozzolan’s performance in flatwork projects involving North Syracuse-based Riccelli-Northern Ready Mix; Pantheon…

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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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NYSDOT gives Klaw Pantheon glass pozzolan the green light

Concrete News

Sources: Clarkson University, Potsdam, N.Y.; CP staff The New York State Department of Transportation is the first agency to approve the use of Pantheon, a waste glass-derived pozzolan with demonstrated potential for portland cement substitution, in concrete mix designs. Klaw Industries LLC of Binghamton, N.Y. processes the silicon dioxide-rich (> 70 percent) agent to a reactivity level yielding additional calcium…

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Eco Material sees 600K tpy of fly ash from second Georgia Power harvest contract

Concrete News

Sources: Eco Material Technologies, South Jordan, Utah; CP staff Eco Material Technologies will add up to 600,000 tons to its annual concrete-grade fly ash shipments with construction of a facility for processing and beneficiating coal combustion material impounded at Georgia Power’s Plant Branch, a Putnam County, Ga. generating station the Atlanta-based utility retired in 2015. Using its ES EcoSystem Efficient…

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Purebase ramps up calciner for commercial scale metakaolin output

Concrete News

Purebase Corp. anticipates a Q3 start up for a calciner engineered to process reactive, concrete-grade metakaolin from an Ione, Calif. kaolin clay deposit. An ASTM C618-designated natural pozzolan, metakaolin presents a reduced carbon alternative to portland cement, owing to the lower calcination phase heat, < 700°C versus 1,400°C+, required to drive off CO2 from calcium and other minerals. It can…

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Lafarge Canada secures full output of recycled glass pozzolan plant

Concrete News

Sources: Progressive Planet, Kamloops, British Columbia; CP staff  Under a new purchase agreement, Lafarge Canada Inc. will assume the entire run of PozGlass 100G ground glass pozzolan—upward of 3,500 metric tons—from a pilot Progressive Planet facility in British Columbia, scheduled for 2024 start up. PozGlass 100G technology centers on a reactor equipped to transform the sodium in finely ground, post-consumer…

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CR Minerals pozzolan supports GCC Type IP powder offering

Concrete News

Sources: CR Minerals Company LLC, Fort Worth, Texas; CP staff CR Minerals has entered an extended agreement to supply natural pozzolan as a source feed for an ASTM C595 Type IP cement, finished at the GCC Tijeras mill near Albuquerque, N.M. The GCC product has demonstrated capacity to mitigate against chemical attack on concrete, augmenting structures’ service life, and holds…

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Ground glass performance pozzolan enters commercial production

Concrete News

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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