The American Cement Association (ACA) has partnered with the Slag Cement Association, the Natural Pozzolan Association and the American Coal Ash Association, to develop new, consolidated Product Category Rules (PCR) for cementitious materials. Officially known as SMART EPD, Part B Product Category Rules for Cementitious Materials, Standard 1000-017, version 1, this effort entailed merging three different PCRs — for cement,…
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