Gas tunnel concrete with high early strength and low permeability coefficient and preparation method thereof

The invention relates to C04B28, in particular to high-early-strength low-ventilation-coefficient gas tunnel concrete and a preparation method thereof.The high-early-strength low-ventilation-coefficient gas tunnel concrete is prepared from a gel material, a mineral admixture, sand, stone, a water reducing agent, an airtight agent and water. The high-early-strength low-permeability-coefficient gas tunnel concrete provided by the invention can adapt to the air temperature below the freezing point or the severe special environment in which mountain tunnel construction is carried out in the geological environment containing harmful gases such as gas, so that the secondary lining concrete has high strength and good impermeability and airtight performance. 本发明涉及C04B28，更具体地，本发明涉及一种高早强低透气系数瓦斯隧道混凝土及其制备方法，高早强低透气系数瓦斯隧道混凝土的原料包括凝胶材料、矿物掺合料、砂子、石子、减水剂、气密剂和水。本发明提供的高早强低透气系数瓦斯隧道混凝土能够适应冰点以下气温或者是在含有瓦斯等有害气体的地质环境中进行山岭隧道施工的恶劣特殊环境，使得二次衬砌混凝土具备高强度、良好的抗渗性能和气密性能。