| 摘要 |
PROBLEM TO BE SOLVED: To provide a fundamental repairing method for a cold joint. SOLUTION: A cut groove 24 is first formed along a cold joint section 12 by a water jet in this repairing method. After the prescribed cut groove 24 is formed, a hardening repairing material 30 is filled in the cut groove 24, and the filled repairing material 30 is hardened as time elapses. The repairing material 30 has little shrinkage, a good filling property, and the same shearing strength as that of concrete, and it can be selected from nonshrinkage mortar, fiber-reinforced mortar, and pea gravel high-fluidity concrete. When the hardening repairing material 30 is filled and hardened in the cut groove 24, healthy portions on both sides of the cold joint section 12 removed for forming the cut groove 24 are integrated together by the hardened repairing material 30.
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