High-temperature-resistant high-ductility fiber-reinforced cement-base composite material and preparation method thereof

The invention provides a high-temperature-resistant high-ductility fiber-reinforced cement-base composite material which is prepared from the following raw materials in percentage by weight: 0.6-6% of reinforcing fibers, 7.5-72% of cement, 0-79% of mineral admixture, 0-40% of fine aggregate, 8-24% of water and 0.3-1.5% of additive. The reinforcing fibers at least comprise basalt fibers. The high-ductility fiber-reinforced cement-base composite material has the advantages of high strength, high elongation percentage, small fracture width, favorable high-temperature resistance and the like. The invention also provides a preparation method of the high-temperature-resistant high-ductility fiber-reinforced cement-base composite material. 本发明提供种耐高温高延性纤维增强水泥基复合材料，按重量百分比计，它由以下原料制备而成：0.6～6％的增强纤维、7.5～72％的水泥、0～79％的矿物掺合料、0～40％的细骨料、8～24％的水和0.3～1.5％的外加剂；所述的增强纤维至少包含玄武岩纤维。本发明所述的高延性纤维增强水泥基复合材料具有强度高、延伸率高、裂缝宽度小、耐高温性能好等优点。本发明还提供所述的耐高温高延性纤维增强水泥基复合材料的制备方法。