| 摘要 |
PROBLEM TO BE SOLVED: To obtain an inexpensive mortar composition of good quality used for the repair of a disaster-stricken structure or earthquakeproof reinforcing of an already constructed structure. SOLUTION: This mortar composition is used for repairing and reinforcing an already constructed structure and is obtained by blending 260-300kg/m<3> water with 500-600kg/m<3> cement, 300-500kg/m<3> fine particle and a fine aggregate in the balance so as to provide 1m<3> and blending the resultant blend with 10-20kg/m<3> , high-performance water-reducing agent, 0.2-0.5kg/m<3> thickener, as necessary, 30-70kg/m<3> expanding additive and an aluminum fine powder in an amount of 0.001-0.01wt.% based on the total amount of cement, the fine powder and the expanding additive as an admixture. |
