High-strength concrete and preparation method thereof

The invention relates to the technical field of concrete, and provides high-strength concrete and a preparation method thereof.The high-strength concrete is prepared from, by weight, 40-60 parts of ordinary Portland cement, 50-70 parts of dolomite coarse aggregate, 60-80 parts of diabase fine aggregate, 40-60 parts of granite powder admixture, 20-30 parts of lime, 2-4 parts of water reducing agent and 3-5 parts of antifreezing agent. By means of the technical scheme, the problem that in the prior art, concrete is low in strength is solved. 本发明涉及混凝土技术领域，提出了一种高强度混凝土及其制备方法，原料包括以下重量份的组分：普通硅酸盐水泥40-60份、白云岩粗集料50-70份、辉绿岩细集料60-80份、花岗岩石粉掺合料40-60份、石灰20-30份、减水剂2-4份、防冻剂3-5份。通过上述技术方案，解决了现有技术中的混凝土强度较低的问题。