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高强混凝土是随着混凝土技术的迅速发展,和世界使用混凝土平均强度的不断提高而发展起来的。目前,高强混凝土在建筑结构工程中的使用,在世界各国已开始比较广泛并得到了较快的发展。 五十年代的混凝土平均强度约为200kg/cm~2,六十年代为300～400kg/cm~2。目前工业发达国家已较多的使用600kg/cm~2（58.8MPa）的混凝土,而且80MPa的高强混凝土的使用量也不断增加,超高强混凝土（100MPa以上）也开始使用于一些结构工程中。 由于各国和地区对混凝土强度的实际
High-strength concrete is developed with the rapid development of concrete technology and the continuous improvement of the average strength of concrete in the world. At present, the use of high-strength concrete in building structural engineering has begun to become more extensive and has achieved rapid development in various countries in the world. The average concrete strength in the fifties was about 200kg/cm~2, and in the 1960s it was 300~400kg/cm~2. At present, the industrial developed countries have already used 600kg/cm~2 (58.8MPa) of concrete, and the use of 80MPa high-strength concrete has also been increasing. Super-high-strength concrete (above 100MPa) has also begun to be used in some structural projects. Due to the actual strength of concrete in various countries and regions