| abstract |
PROBLEM TO BE SOLVED: To provide a low-shrinkage or low-expansion, no volume change during curing, particularly improved acid resistance, and not a two-component mixed type mainly composed of alumina cement as a hydraulic inorganic binder. The purpose is to provide powder-type grout materials. SOLUTION: A hydraulic inorganic binder containing alumina cement, Portland cement, gypsum and limes, and a coagulation adjusting agent, a fluidizing agent, a thickening agent, an antifoaming agent and a swelling agent comprising a setting accelerator and a setting retarder. An acid resistant grout composition comprising An acid resistant grout composition, wherein the hydraulic inorganic binder comprises 100 parts by weight of alumina cement, 10 to 75 parts by weight of Portland cement, 5 to 80 parts by weight of gypsum and 0.05 to 10 parts by weight of lime. is there. [Selection figure] None |