PURPOSE: A crushing agent, prepared by incorporating a quick setting material consisting of amorphous calcium aluminate and an inorganic sulfate and cement as a principal component, and capable of crushing a brittle material in a short time even in a cold district.
CONSTITUTION: A crushing agent prepared by incorporating 100pts.wt. principal component containing (A) a mixture containing amorphous calcium aluminate with an inorganic sulfate, e.g. anhydrous gypsum or sodium sulfate, at preferably 1.5W2 weight ratio and a cement, usually portland cement, at (50W80):(50W 20) weight ratio with (B) 3pts.wt. or less dispersing agent, e.g. lignin sulfonate or water-soluble melamine resin, and (C) 5pts.wt. or less setting retarder, e.g. sodium carbonate.
YAGI ISAO
NAKATANI SEIICHI
| JPS4878748A | 1973-10-22 | |||
| JPS57119850A | 1982-07-26 | |||
| JPS57187044A | 1982-11-17 |