QUANTITY DETERMINING METHOD OF ADMIXTURE IN MIXED CEMENT

摘要

PROBLEM TO BE SOLVED: To provide a method capable of easily and accurately determining the quantity of an admixture in mixed cement.SOLUTION: The quantity determining method of an admixture in mixed cement employs an X-ray diffraction Rietveld method. In this method, an external standard method based on the X-ray diffraction Rietveld method is used, and portland cement contained in the mixed cement is used as a standard substance in the external standard method. Preferably, the quantity determining method includes a process of calculating the G factor in the portland cement, and a process of calculating the mass ratio in each of crystal phases constituting the mixed cement.SELECTED DRAWING: None