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STAIN HARDENING TYPE CEMENT BASED COMPOSITE MATERIAL HAVING SELF-COMPACTING PROPERTY AND LOW SHRINKABILITY
STAIN HARDENING TYPE CEMENT BASED COMPOSITE MATERIAL HAVING SELF-COMPACTING PROPERTY AND LOW SHRINKABILITY
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机译：具有自溶性和低收缩性的硬化硬化型水泥基复合材料
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摘要
PROBLEM TO BE SOLVED: To improve the compacting properties and low shrinkability of a strain hardening type cement based composite material.;SOLUTION: The strain hardening type cement based composite material having self-compacting properties and low shrinkability is the crack dispersion type fiber reinforced one exhibiting a tensile strain of ≥1% in a tensile test of a hardened body in an age of 28 days, and is obtained by blending a prepared matrix in the following [M1] with PVA (polyvinyl alcohol) short fiber in the following [F1] by an amount of 1 to 3 vol.%: [M1] where, in the use of normal portland cement or low heat portland cement, the weight ratio between water and a binder is ≥25%, a unit water content is 250 to 400 kg/m3, the weight ratio between a fine aggregate and the binder (S/C) is ≤1.5 (inclusive of zero), the maximum particle diameter of the fine aggregate is ≤0.8 mm, the mean particle diameter of the fine aggregate is ≤0.4 mm, the content of an expanding admixture is 100 kg/m3, and the content of welan gum is 0.05 to 1.0 kg/m3; and [F1] where the diameter of the fiber is ≤50 μm, the length of the fiber is 5 to 25 mm, and the tensile strength of the fiber is 1,500 to 2,400 MPa.;COPYRIGHT: (C)2003,JPO
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机译：解决的问题：为了提高应变硬化型水泥基复合材料的压实性能和低收缩性。在28天的老化过程中，在硬化体的拉伸试验中显示的拉伸应变为+ 1％，是通过将以下[M1]中制得的基体与以下[P1]中的PVA（聚乙烯醇）短纤维共混而获得的[F1]的量> 1-3％（体积）：[M1]其中，在使用普通硅酸盐水泥或低热硅酸盐水泥时，水与粘结剂的重量比为25％，单位含水量为250至400 kg / m 3 ，细骨料与粘合剂的重量比（S / C）为＆le; 1.5（包括零），细骨料的最大粒径为≤0.8mm，细骨料的平均粒径为≤0.4mm，含量o f，膨胀剂<100kg / m 3 ，Welan胶的含量为0.05〜1.0kg / m 3 ; [F1]，其中纤维的直径为±50μm，纤维的长度为5至25 mm，纤维的拉伸强度为1,500至2,400 MPa 。;版权：（C）2003，日本特许厅
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