| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a surface coating material having, in repairing a concrete structure in a water supply facility, etc. such as an open channel, excellent workability and initial hardening property, compression strength sufficient to be integrated with the concrete structure, and other properties such as excellent resistance against abrasion wear due to water flow or sand, in good balance.SOLUTION: A surface coating material includes Portland cement, fine aggregate, resin powder, an expansive admixture, synthetic resin fibers, a setting modifier and a defoaming agent. A maximum particle diameter of the fine aggregate is less than 1700μm. A mass ratio of particles whose particle size is 1180μm or larger and smaller than 1700μm is 0.1-10 mass%. The mass ratio of particles whose particle size is 600μm or larger and smaller than 1180μm is 40-90 mass%. The mass ratio of particles whose particle size is 300μm or larger and smaller than 600μm is 5-35 mass%. The mass ratio of particles whose particle size is 150μm or larger and smaller than 300μm is 15 mass% or less.</p> |
