Production mannered null 1. brain specific surface of explosion-proof fissure Characteristic

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method capable of manufacturing a high strength cement hardened body in which the construction work in placing is easily and rapidly carried out and the explosion fracture of the high strength cement hardened body caused by heat in fire is improved (prevented from the explosion fracture) in the high strength cement hardened body having a compressive strength exceeding 105 MPa.;SOLUTION: The explosion resistant high strength cement hardened body is manufactured by kneading, forming and setting a compound containing 100 pts.mass cement particle having 2,500-5,000 cm²/g Blaine specific surface area, 10-40 pts.mass fine particle having 5-25 cm²/g BET specific surface area, 10-50 pts.mass inorganic particle A having 5,000-30,000 cm²/g Blaine specific surface area, 5-35 pts.mass inorganic particle B having 2,500-5,000 cm²/g Blaine specific surface area, a water reducing agent, water and organic fibers each having different length.;COPYRIGHT: (C)2004,JPO