| abstract |
(57) [Abstract] [Problem] Used in the civil engineering and construction industries, does not cause material separation or bleeding, ensures sufficient working time from kneading to the end of pouring, and is sufficient the next morning even at night Provided is a grout material that can be opened, particularly a cement admixture, a cement composition, and a grout material used for repairing concrete paving slabs such as airports, ports, and roads. SOLUTION: A cement admixture containing calcium aluminosilicate glass, gypsum and a clay mineral, a cement, a fine aggregate, a cement composition containing the cement admixture, and the cement composition The grout material is contained. |