| 摘要 |
PROBLEM TO BE SOLVED: To provide an admixture, which is incorporated in a soil pavement and adds resistance to mud and cracking resistance to the soil pavement while maintaining sufficient strength. SOLUTION: The admixture for a soil pavement contains 100 pts.wt. of a polyvinyl alcohol polymer with the saponification degree of 80-99% and the polymerization degree of 50-4,000 and 30-240 pts.wt. of one or a plurality of plasters selected from the type II of anhydrous plasters, the type III of anhydrous plasters, dihydrate gypsum and hemihydrate gypsum. The admixture also contains 10-300 pts.wt. of a hydraulic material to 100 pts.wt. of the polyvinyl alcohol polymer, and further contains 1-20 pts.wt. of amorphous silica to 100 pts.wt. of the admixture for the soil pavement. COPYRIGHT: (C)2005,JPO&NCIPI |
