集料是混凝土的重要组成部分,粗、细集料的体积约占混凝土总体积的70～80％。对于集料在混凝土中所起的作用,长期以来传统地被认为是惰性填充材料。在一般教科书上对集料的评价也往往局限在两个方面: (1)在技术作用上,集料的存在使 Aggregate is an important part of concrete. The volume of coarse and fine aggregates accounts for about 70-80% of the total volume of concrete. The role of aggregates in concrete has long been traditionally considered as an inert filler material. The evaluation of aggregates in general textbooks is often limited to two aspects: (1) In the role of technology, the existence of aggregates makes