| 摘要 |
PURPOSE:To have ground grouting chemical having cement and alkali metal salt aluminate as effective ingredients and to obtain the ground grouting chemical excellent in durability with high strength in spite of the fact that the gel time is relatively long. CONSTITUTION:Ground grouting chemical is so constituted that it has cement and alkali metal salt aluminate as effective ingredients. Cement has fine-grain with over 5000cm<2>/g of specific surface area, and alkali metal salt aluminate has value more than 2.8 of mole percentage ([Me2O]/[Al2O3], where, Me is an alkali metal, and [Me2O] and [Al2O3] indicate molar concentration of Me2O and Al2O3 respectively. |
