ASTM Committee C01 on Cement is developing proposed standard ASTM WK42602, Test Method for Compressive Strength of Alkali Activated Coal Fly Ash and Raw or Calcined Natural Pozzolan Cement Mortars. Once approved, standard may be applied to compare different lots or sources or to monitor changes in strength given by single source of fly ash or natural pozzolan. Primary users will be producers of construction materials, independent testing laboratories, and academic research groups.
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