| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-flowable hydraulic composition where the main component of a hydraulic component is portland cement, which has sufficiently high workability and hardening characteristics and where high surface hardness and superior hardened surface finishing are obtained especially under a low temperature.SOLUTION: The self-flowable hydraulic composition includes the hydraulic component comprising 40-60 mass% portland cement, 15-40 mass% alumina cement and 10-30 mass% gypsum, an inorganic powder, a fine aggregate, a fluidizing agent and a setting modifying agent. In the self-flowable hydraulic composition, the fine aggregate contains a coarse particle having a particle diameter of 600 μm or more of less than 5 mass% in 100 mass% of the fine aggregate, has a water absorbing ratio of 1.6% or less and has a CA amount in the portland cement of 7 mass% or less. |
