| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete repairing agent having larger repair effect than that of a conventional repairing agent.SOLUTION: A concrete protective material comprises an alkali metal-containing silicate and alkaline electrolytic water. Alternatively, a concrete protective material c comprises an alkali metal-containing silicate and a silicon dioxide. As the alkali metal-containing silicate, for example, a sodium silicate, a potassium silicate, a lithium silicate, or the like may be used. A concrete structure can be repaired by providing the concrete protective material thereto.SELECTED DRAWING: None |
