METHOD FOR PRODUCING BURSTING RESISTANT HIGH STRENGTH CEMENT HARDENED BODY

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a bursting resistant high strength cement hardened body, in which the bursting of a hardened body can be prevented.;SOLUTION: In the method for producing the high strength cement hardened body exhibiting a compressive strength of ≥150 MPa and a bending strength of ≥30 MPa, a kneaded material obtained by blending metallic fibers (e.g. steel fibers having a length of ≥2 mm, and in which the ratio of the length/ diameter is ≥20) in an internal content ratio of 0.5 to 4.0 vol.%, organic short fibers having a diameter of 0.08 to 0.12 mm, and a length of 0.5 to 4.0 mm in an external content ratio of 2.0 to 4.0 vol.%, and organic long fibers having a diameter of 0.03 to 0.05 mm, and a length of 6.0 to 12.0 mm in an external ratio of 0.5 to 1.0 vol.%, and whose flow value is controlled to ≥240 mm is formed, cured, and hardened. As the organic short-long fibers, vinylon fibers, polypropylene fibers, or the like, are used.;COPYRIGHT: (C)2003,JPO