| 摘要 |
PURPOSE:To obtain the subject composition capable of giving a pavement having sufficiently high strength, water-permeability, etc., and effective in keeping the natural beauty by compounding sandy clay, cement and a curing agent composed of AlCl3, calcium acetate and Fe2O3 at specific ratios. CONSTITUTION:The objective composition contains (A) 100 pts.wt. of sandy clay composed of MASATSUCHI, shirasu, pit sand, granite sand, etc., (B) 5-15 pts.wt. of cement composed of Portland cement, fly ash cement, blast furnace cement, etc., and (C) a curing agent composed of (i) 0.025-0.25 pts.wt. of AlCl3, (ii) 0.05-0.375 pts.wt. of calcium acetate and (iii) 0.00025-0.005 pts.wt. of Fe2O3. |
