- 目录
- 混凝土与制品
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相变骨料及硅粉掺量对混凝土抗冲击性能的影响
作者：朱晓娥
（九江学院 土木工程与城市建设学院，江西 九江 332005）
摘要：以石灰石粉、硬脂酸丁酯和膨胀珍珠岩为原料制备相变骨料，将相变骨料等体积替代砂，硅粉等质量代替水泥进行试验，研究了相变骨料及硅粉掺量对混凝土抗冲击性能的影响。结果表明：相变骨料掺量对混凝土的抗冲击性能有一定影响，但并无规律可寻，相变骨料最佳掺量应为6%～12%；当硅粉掺量为6%~18%时，硅粉代替水泥能够有效改善混凝土的抗冲击性能。
关键词：硅粉；相变骨料；混凝土；抗冲击性能
中图分类号：TU528 文献标识码：A 文章编号：1001-702X（2019）02-0036-04
Effect of silica fume content and phase change aggregate content on impact resistance of concrete
ZHU Xiaoe
（College of Civil Engineering and Urban Construction，Jiujiang University，Jiujiang 332005，China）
Abstract：Phase change aggregate was prepared by using limestone powder，butyl stearate and expanded perlite as raw materials. The effect of different volume of phase change aggregate and silica powder on the impact resistance of concrete is studied by replacing the sand with the same volume of the phase change aggregate and the cement with same mass of silica powder. The results show that the amount of phase change aggregate has a certain effect on the impact resistance of concrete，but there is no law to find，the optimal dosage of the phase change aggregate should be 6%~12%. When silica powder content is 6%~18%，silica powder can effectively improve the impact resistance of concrete.
Key words：silica powder，phase change aggregate，concrete，impact resistance