一、国外混凝土研究的现状与发展混凝土是一种有广阔发展前途的重要建筑材料,其使用量每年达50～60亿吨,是目前世界上用量最大的人造建筑材料。混凝土不仅原料易得、成本较低、施工适应性强、耐久性好,而且能耗较低。现在是世界能源日益紧张的时代,连工业先进的国家,在选用建筑材料时也要权衡能源的消耗。混凝土与钢和砖相比,能源消耗要低得多。按制备同样体积的材料比较,普通混凝土的能耗为60CE/米~3,砖为245CE/米~3,钢 First, the status quo and development of foreign concrete research and development Concrete is an important building material with a promising future. Its use volume is 5 to 6 billion tons per year. It is the world’s largest artificial building material. Concrete not only has easy availability of raw materials, low cost, strong construction adaptability, good durability, but also low energy consumption. Now is the era of increasingly intense world energy. Even advanced industrial countries must weigh energy consumption when choosing construction materials. Compared to steel and brick, concrete consumes much less energy. According to the same volume of material prepared, the energy consumption of ordinary concrete is 60CE/m~3, the brick is 245CE/m~3, steel