| 摘要 |
PROBLEM TO BE SOLVED: To provide an instant stripping porous concrete compact having a large coefficient of water permeability and strength, easy to work such as forming. SOLUTION: The instant stripping porous concrete compact is obtained in such a way that kneaded matter of a coarse aggregate and a composition of 10-80% paste or mortar in terms of vol.% to the coarse aggregate is cast into a form and formed therein, the obtained compact is instant stripped, after that, it is subjected to curing. Wherein, the paste or the mortar contains the 100 pts.wt. cement or powder mixture containing cement, the 0-200 pts.wt. fine aggregate, the 0.1-3.0 pts.wt. gypsum, the 0.1-3.0 pts.wt. water reducing agent and the 15-25 pts.wt. water. |
