耐火混凝土是一种长期经受200～900℃以上高温作用，并在高温下保持所需要的物理力学性能的特种7昆凝土。它由适当的胶结料、耐热粗细骨料(有时也掺入一定量磨细的矿物掺量)和水，按一定比例配制而成。通常使用较多的有硅酸盐水泥耐火混凝土、水玻璃耐火混
Refractory concrete is a long-term stand for more than 200 ~ 900 ℃ high temperature and high temperature to maintain the required physical and mechanical properties of the special 7 Kun concrete. It consists of an appropriate binder, heat-weight aggregate (sometimes mixed with a certain amount of finely ground mineral content) and water, made by a certain percentage of preparation. Typically use more fire-resistant concrete with Portland cement, water glass mixed with fire