| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyolefin resin fiber for cement reinforcement to which hydrophilicity can be imparted, and which has excellent adhesive properties with a cement matrix, can reinforce a cement molding, and can improve the bending strength and impact strength of the cement molding. SOLUTION: A polypropylene fiber is subjected to surface oxidation treatment, and the wetting index of the surface is controlled to≥38 dyn/cm, so that the polyolefin resin fiber for cement reinforcement is obtained to which excellent affinity can be imparted to the interface between the polypropylene fiber and cement, and which has excellent adhesive properties with the cement matrix, can reinforce a cement molding, and can improve the bending strength and impact strength of the cement molding. COPYRIGHT: (C)2004,JPO
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