| 摘要 |
PROBLEM TO BE SOLVED: To provide a capsule for anchor element fixation of a bolt used as an anchor element in a rock bolt method and a slope face anchor construction method executed in civil engineering and construction fields of roads and railroads, etc., capable of obtaining the effects of excellent quick-hardening property, durability and manual workability in a cold district, and an anchor element fixation method using it.SOLUTION: An easy-to-destroy and water-absorptive capsule for the anchor element fixation is formed by encapsulating a quick-hardening cement composition containing cement, calcium aluminosilicate glass, gypsum, a coagulation retarder, hollow resin microspheres whose surface is coated with calcium carbonate, and a water reducing agent. In the anchor element fixation method, the capsule for the anchor element fixation is immersed in water for 2 to 7 minutes, then filled inside a bore hole, and destroyed, and the quick-hardening cement composition inside the capsule for the anchor element fixation is mixed. |
