【摘要】 分析了粗骨料的最大粒径、颗粒级配对混凝土强度的影响,并从理论上分析了其表面特征和颗粒形状、强度对混凝土性能的影响.经分析得知,粗集料各方面的性能对混凝土的性能有较大的影响,其中以最大粒径和颗粒级配对混凝土性能的影响最为显著,高性能混凝土对粗集料的各方面性能均有较高的要求.更多还原

【Abstract】 This article chiefly analyses the influence of the biggest grain size and the grain gradation of coarse aggregate on concrete strength and the influence of the surface character, shape of grain and strength on concrete performance is theoretically analyzed. According to the analysis, it is considered that the performances of coarse aggregate, especially the biggest grain size and the grain gradation, have great influence on concrete performance. High-performance concrete has a higher request for all its performances.更多还原