| 摘要 |
PROBLEM TO BE SOLVED: To provide a road repairing material which gives excellent construction workability suitable for the work for repairing and reinforcing, particularly in road repairing, gives a high strength at an initial stage, leading to the shortening of the construction period, a high strength over a long period and an excellent durability as well.SOLUTION: The road repairing material is a polymer cement composition for repairing which contains 12-35 pts.mass of a clinker powder comprising at least 65 mass% of calcium aluminate composed of crystalline calcium aluminate and noncrystalline calcium aluminate and an interstitial material for the remainder, 100 pts.mass of normal portland cement, various types of gypsum of the amount equivalent to 0.5-2 times of the amount of the clinker powder contained and 9-30 pts.mass of a polymer for cement. |
