| 摘要 |
PROBLEM TO BE SOLVED: To easily repair a concrete block by applying resin reacting/hardening even in the presence of moisture to a part or the whole of a concrete block surface. SOLUTION: Resin 3 reacting even in the presence of moisture, for example, a polysulfide modified resin is thinly applied as a primer to a damaged part of a repairing object concrete block 2 of a concrete block used for a revetment, wave dissipation, a retaining wall and a wall surface of a road, and is then smoothly applied in a thickness of a certain degree. The polysulfide modified resin is applied. The polysulfide modified resin is excellent in an adhesive property and chemical resistance, and is also excellent in flexibility and impact resistance, and exhibits strong adhesive strength to a wetting surface. Since the resin 3 itself hardens even in the presence of water, drying work is obviated, the concrete block can be easily repaired, and the concrete block 1 after repairing becomes excellent in abrasion resistance.
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