| 摘要 |
PURPOSE:To give high fluidity and hardenability, and facilitate on-site construction by adding a prescribed quantity of silica aqueous jelly or sol as an additional component when lightweight soil is composed. CONSTITUTION:A soil composition is formed of uniform mixture of soil, a foaming body, a hydraulic setting material, water and a particulates of silica aqueous jelly having SiO2 concentration of 1-60 weight %. Here, for example, a granular foaming body of synthetic resin is used as the foaming body, and for example, Portland cement or the like is used generally as the hydraulic setting material, and for example, aqueous sol or the like of colloidal silica having a proper particle diameter and high surface activity is used as the silica aqueous jelly. These various materials, for example, the soil of 100 pts.wt., the foaming body of 0.01-90 pts.wt., the hydraulic setting material of not less than 5 pts.wt., the silica aqueous jelly of 2-1500 pts.wt. and water of 5-2000 pts.wt. are mixed uniformly together. Thereby, since viscosity and affinity can be maintained for many hours, ununiformization is not caused before these are hardened. |
