随着建设事业的发展,混凝土的需要量将与日俱增。如以每亿基建投资需10万立方米混凝土计,现在全国混凝土量将达5千万立方米。建筑工业化是建筑业的发展方向,对混凝土生产来说其发展方向是逐步实现工厂化和机械化。混凝土工程包括预制混凝土和现浇混凝土。在工业建设中,现浇混凝土量大于预制混凝土量,如冶金工厂建设的现浇混凝土量约占混凝土总量的80～90%。 With the development of construction, the demand for concrete will increase day by day. If 100,000 cubic meters of concrete are needed for a capital investment of 100 million, the total amount of concrete in the country will reach 50 million cubic meters. The industrialization of buildings is the development direction of the construction industry. The direction of development for concrete production is to gradually realize industrialization and mechanization. Concrete works include precast concrete and cast-in-place concrete. In industrial construction, the amount of cast-in-place concrete is greater than the amount of precast concrete. For example, the amount of cast-in-place concrete for metallurgical plants accounts for 80 to 90% of the total amount of concrete.