| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a composition having excellent controllability of hardening rate and thixotropic properties by including water glass, blast furnace water- granulated slag, a starch and an alkali hydroxide. SOLUTION: This composition comprises 100 pts.wt. of water glass, 30-150 pts.wt. of blast furnace having 3,800-8,500 m2/g Blaine value, 2-12 pts.wt. of a starch such as corn starch, etc., a fixed amount of an alkali hydroxide such as sodium hydroxide, etc., and optionally 2-25 pts.wt. of a clay such as kaolin, etc., for adjusting a viscosity. The viscosity of the composition at 25 deg.C is 1,000-20,000 cps. Since the hardened material has resistance to most substances in a hardening process, defective hardening, etc., will not occur. The material has a function of sticking to most substances after hardening and is useful as a solidifying material for waste. Since the hardened material contains water glass, it has excellent adhesiveness to a nonpolar substance such as a plastic, etc., and is useful as an extender for a polystyrene foam.</p> |
