GCC schedules Montana mill’s portland-limestone cement shift

Sources: GCC of America, Denver; CP staff

The GCC Trident Plant near Three Forks, Mont. will fully convert to portland-limestone cement (PLC) production early next year. With capacity upward of 350,000 tons, the 110-year-old operation can potentially lower its net carbon dioxide emissions by 25,000 tons annually, based on the blending of fine limestone at 5 percent to 15 percent volumes as part of the cement clinker finishing phase. PLC is a proven binder that performs similar to clinker-only portland cement with almost identical strength, workability and durability characteristics, notes GCC, which plans to expand PLC production to more of its U.S. operations in the near future. 

“We believe our industry must continue to provide the homes, roads and infrastructure that shape our world while, simultaneously, addressing climate change,” says GCC U.S. Division President Ron Henley. “PLC is one piece of the puzzle to reduce greenhouse gases. Concrete made with PLC is a resilient material that easily meets the needs of our customers for generations to come.”

“Earlier this year, GCC signed the Global Cement and Concrete Association’s net zero pledge,” he adds. “PLC will help us, and our customers, reach that goal. We are committed to building a better world.”

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