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在自密实混凝土中,粗骨料对自密实混凝土性能具有较大影响。本文通过研究粗骨料形状系数对自密实混凝土性能的影响,提出了评价粗骨料形状系数的方法,并测试了使用不同形状系数的粗骨料,其自密实混凝土的工作性能以及力学性能,包括坍落度、扩展度、V型槽时间和强度等。
In self-compacting concrete, the coarse aggregate has a greater impact on the performance of self-compacting concrete. In this paper, the influence of coarse aggregate shape factor on the performance of self-compacting concrete is researched. The method to evaluate the shape factor of coarse aggregate is put forward. The coarse aggregate with different form factor is tested. The workability and mechanical property of self-compacting concrete, Including slump, expansion, V-groove time and intensity.