| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing technique for a hydraulic hardened body such as mortar, concrete, of which the shrinkage is reduced and the crack generation is suppressed. SOLUTION: A working body that has a layer containing a shrinkage reducing agent on its surface is formed by applying a hydraulic kneaded material which is made by kneading a hydraulic composition, water, and a shrinkage reducing agent, or, after the application of a hydraulic kneaded material, a layer containing a shrinkage reducing agent is formed on the surface of the working body by coating, etc., with a shrinkage reducing agent. Thereafter, a layer of an evaporation suppressing covering-agent is formed by coating with an evaporation suppressing agent. |
