Preparation method of ultrahigh-strength steel fiber reinforced concrete

The invention relates to the field of concrete, and in particular, relates to a preparation method of ultrahigh-strength steel fiber reinforced concrete. The concrete is prepared from the following raw materials in parts by weight: 100 to 150 parts of Portland cement, 300 to 500 parts of quartz sand, 40 to 50 parts of copper-plated steel fibers, 5 to 10 parts of high-activity fluorine titanium substance-basalt fiber bead strings, 20 to 30 parts of an acrylic emulsion, 10 to 15 parts of silica fume, 1 to 3 parts of an SF-4000 series polycarboxylic acid high-performance water reducing agent, 1 to 2 parts of polyol, 5 to 8 parts of nano crystalline cellulose, 0.5 to 1.5 parts of polydimethylsiloxane and 50 to 80 parts of water. By optimizing the formula and adjusting the process, the breaking strength and compressive strength of the concrete are greatly improved, and the 28 d compressive strength reaches the C150 strength grade. 本发明涉及混凝土领域，具体涉及一种超高强钢纤维混凝土的制备方法，该混凝土由以下重量份的原料制备所得：硅酸盐水泥100～150份、石英砂300～500份、镀铜钢纤维40～