FOAMING AGENT FOR CEMENT COMPOSITIONS AND CEMENT COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a foaming agent for cement compositions that can improve the expansibility of cement compositions, and provide a cement composition with high expansibility.SOLUTION: The foaming agent comprises an azo compound and a hydrazine derivative, where a mass ratio of the azo compound to a total mass of the azo compound and the hydrazine derivative is 0.35 or more and 0.65 or less.SELECTED DRAWING: None