| abstract |
PROBLEM TO BE SOLVED: To provide a hydraulic composition having a self-leveling property with a small change in length at the time of curing, in particular, a small change in expansion and shrinkage at the time of curing, and a floor construction method and a repair method using the hydraulic composition. Is to propose. SOLUTION: Alumina cement 30-70 parts by mass, Portland cement 0-45 parts by mass (excluding 0 parts by mass) and gypsum 15-50 parts by mass (the total of alumina cement, Portland cement and gypsum is 100 parts by mass) A self-flowing hydraulic composition comprising a hydraulic component, a setting modifier, a fluidizing agent, and a thickener. The setting modifier is a self-flowing hydraulic composition characterized by comprising a lithium salt, a tartrate salt and a bicarbonate salt. [Selection figure] None |