| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cementitious hardened material which contains a large amount of metal fiber and has excellent fracture mechanical properties. <P>SOLUTION: The cementitious hardened material contains a corrugated, three-dimensionally corrugated or spiral metal fiber in an amount of 10-20 vol.%. The three-dimensionally corrugated metal fiber is characterized in that the diameter is 0.1-1.0 mm, the fiber length is 10-30 mm, the period of wave is 0.2 to 1.5 times of the fiber length, and the amplitude of wave is 1.5 to 5 times of the diameter. <P>COPYRIGHT: (C)2012,JPO&INPIT |
