Salt River unearths additional 300K/year Class F ash processing potential

Sources: Salt River Materials Group, Phoenix; CP staff

One of the West’s principal Class F fly ash sources continues to build out processing and blending capacity in response to diminished supplies of the material stemming from coal-fired power generating station retirements. 

Salt River Materials Group’s (SRMG) latest beneficiation equipment outlay will enable finishing up to 300,000 tons per year of ASTM C618-grade product from material landfilled at the Coronado Generating Station. The producer holds a marketing contract for the Arizona facility’s concrete-grade Class C fly ash. An extended agreement with Salt River Project, owner, includes extracted-ash processing and sales, with initial output projected in spring 2021. 

SRMG is leveraging years of years of experience classifying, beneficiating and blending fly ash and other pozzolanic materials to increase Class F-grade material supplies for Southwest and West Coast markets. Coronado Station is the fourth site where it is deploying technology to convert otherwise unusable raw feeds to performance fly ash. Located seven miles from the central eastern Arizona city of St. John’s, the BNSF Railway-served station is 75 miles from SRMG’s Cholla facility in Joseph City, and join the producer’s extensive cementitious materials distribution network.


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