| 摘要 |
PROBLEM TO BE SOLVED: To obtain a zeolite-containing repairing material having excellent fluidity, a low water cement ratio and excellent workability and improved change in length of hardened material. SOLUTION: This zeolite-containing repairing material comprises a mortar composed of 100 pts.wt. of a cement material composition constituted of cement, active silica fine powder and a hydration expansion type expanding material, 1-5 pts.wt. of a water reducing agent and 100-250 pts.wt. of a fine aggregate, contains 0.1-1.0 vol.% based on the mortar of nonmetal reinforcing material having 5-20 mm fiber length, >= 80 kgf/mm2 tensile strength and >=2,500 kgf/mm2 Young's modulus and 5-20 wt.% based on the cement of the mortar of a calcium type synthetic zeolite as a fluidity improver. The content of the alkali metal component of the calcium type synthetic zeolite is <=7.0 wt.% based on Na2O equivalent calculated as anhydride. The fluidity improver is a combination of the calcium type synthetic zeolite and gypsum. The amount of the gypsum added is 1 wt.% to 10 wt.% based on the cement. |
