Ultra-fast hard plastic injection material and injection method of ultra-fast hard plastic injection material

摘要

PROBLEM TO BE SOLVED: To maintain fluidity for a long time, to exhibit plasticity instantly after mixing liquid A and liquid B, and to quickly solidify after the end of pot life, at a short age. It is an object of the present invention to provide an ultrafast hard plastic injection material exhibiting excellent strength and an injection method of the ultrafast hard plastic injection material. In the ultrafast hard plastic injection material according to the present invention, liquid A containing ultrafast hard cement, a setting retarder and water, and liquid B containing a plasticizer, an admixture and water are mixed. It is an ultrafast hard plastic injection material to be formed, and the mineral composition of the ultrafast hard cement is CA: 9.0% by mass or more and 25.0% by mass or less, C2AS: 3.0% by mass or more and 20.0% by mass or less. The content of the setting retarder is 0.1% by mass or more and 1.0% by mass or less with respect to the ultrafast-hardened cement. [Selection diagram] None