| 摘要 |
PROBLEM TO BE SOLVED: To thoroughly inject a repairing agent into cracks spread complicatedly in the interior of concrete without an expensive injector by an unskilled worker. SOLUTION: A temporarily stopping seal 3 is applied to a portion to be repaired of the concrete building 1 at need, an injection base 10 is fitted to open a filler hole to cracks in the portion to be repaired, and a repairing agent storing container 20 having a designated capacity is installed in a position higher than the filler hole of the base 10. A repairing agent discharge port 23 of the storing container 20 is connected to a mouth ring 13 communicating with the filler hole of the injection base 10, and after a designated quantity of a repairing agent is injected into the storing container 20, it is left as it is for a designated time. Whereupon, the repairing agent in the storing container 20 is slowly injected into the cracks of the portion to be repaired by gravity and capillary phenomenon.
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