从本世纪初期混凝土作为重要的建筑材料以来,随着科学和技术的发展,目前全世界混凝土的使用量达20亿立方米。特别是最近十年来,混凝土的品种大有增加,混凝土的施工技术更加完善。预测学家认为到本世纪末期,非金属材料将成为主要的建筑材料,而混凝土及其制品无论在数量上、质量上和使用范围上都将有更大的发展。 Since concrete was used as an important building material at the beginning of this century, with the development of science and technology, the use of concrete in the world has reached 2 billion cubic meters. Especially in the last ten years, the variety of concrete has greatly increased, and the construction technology of concrete has improved. Predictors believe that by the end of this century, non-metallic materials will become the main building materials, and concrete and its products will have greater development in terms of quantity, quality, and scope of use.