针片状集料含量对道路水泥混凝土性能的影响

Influence of the content of the needle sheet on the performance of road cement concrete

水泥混凝土作为一种复合材料,含有水泥、砂砾、粗细集料和碎石等,其中集料是其重要的组成部分,集料的自身特性会对水泥混凝土的性能产生一定的影响。特别是针片状集料对混凝土的物理性能和力学性能都有着直接的影响,并根据针片状集料含量的不同产生不同的影响。文章主要根据室内试验结果,对不同针片状集料含量对道路水泥混凝土性能的影响进行总结,提出针片状集料含量在不同道路等级中的参考范围。

As a kind of composite material cement concrete, includes cement, gravel, coarse and fine aggregate and crushed stone, etc., and aggregates are an important part. The characteristics of aggregate have a certain effect on the performance of cement concrete. In particular, the needle sheet aggregate has a direct influence on the physical and mechanical properties of the concrete, and the influence is different because of on different contents of needle sheet aggregates. Based on the results of the laboratory test, the impacts of different aggregate contensts on the performance of road cement concrete are summed up, so as to propose the reference range of aggregate in different grade roads.