| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain the subject composition composed of granulated slag and brackish water, having a crystal structure similar to cured cement, exhibiting excellent strength developing property and impregnating property and high durability and useful e.g. for the reinforcement and stabilization of a weak ground, etc. SOLUTION: The objective composition contains (A) 100-1,500kg of granulated slag per 1m<3> , (B) 20-250kg (in terms of the sum of potassium carbonate, sodium carbonate and secondary or tertiary alkali metal phosphate) of a solid or liquid brackish water as a curing agent and (C) water. Preferably, the component A is fine slag powder, especially granulated blast furnace slag having a Blaine value of >=8,000cm<2> /g, the component B is an aqueous solution having pH of >=11.5 and containing the metal phosphate in an amount of 0.01-5kg in terms of solid component based on 1m<3> of the total grout and the composition further contains (D) 20-250kg (in terms of solid silica component) of an aqueous solution of colloidal silica having a silica concentration of 5-50wt.% and an pH of >=8 per 1m<3> of the total grout.</p> |
