| 摘要 |
PROBLEM TO BE SOLVED: To obtain a hardening inorganic-based composition capable of providing an inorganic-based hardened material excellent in waterproof and weather resistant properties. SOLUTION: This hardening inorganic-based composition consists of 100 pts.wt. SiO2 -Al2 O3 -based reactive powdery material, 0.2-450 pts.wt. alkali metal silicate, 10-1500 pts.wt. water, 0.01-75 pts.wt. alkylalkoxysilane expressed by formula I, R<1> n Si(OR<2> )4-n [R<1> is a 1-18C alkyl; R<2> is a 1-5C alkyl; (n) is a natural number of 1-3] and 0.01-30 pts.wt. alcohol expressed by formula II, R<3> OH (R<3> is a 1-5C alkyl). |
