Method for rapid evaluation of cement containing coal ash and method for producing cement containing coal ash

摘要

PROBLEM TO BE SOLVED: To provide a method for promptly and quantitatively evaluating an alkali silica reaction suppressing effect which coal ash containing cement has.SOLUTION: The method for promptly evaluating coal ash containing cement includes evaluating the alkali silica reaction suppressing effect of the coal ash containing cement on the basis of an alkali silica reaction suppressing effect index value calculated using the following formula (1). [An alkali silica reaction suppressing effect index value]=[a Blaine specific surface area of coal ash]×[a mullite content in the coal ash]×[a SiOcontent in the amorphous phase of the coal ash]×[a mixing ratio of the coal ash in the cement] ... (1) (where, the unit of the Blaine specific surface area in the formula is cm/g, and the units of the content and the mixing ratio are mass%)SELECTED DRAWING: Figure 1