论文部分内容阅读
通过对石灰岩和玄式岩机制砂基本性质的介绍及相关试验,比较两种机制砂配置以玄武岩碎石为粗骨料的SBS改性沥青混凝土中的适应性。本文汇集了两种机制砂配置于改性沥青混合料中的关键数据,从而证实石灰岩机制砂可以替代玄武岩机制砂。进一步的经济性分析表明,石灰岩机制砂价格明显低于玄武岩机制砂,可以缓解本地区玄武岩矿源稀少,玄武岩机制砂加工、运输成本高的现状。
Based on the introduction of the basic properties of limestone and sands, and the related experiments, the suitability of SBS modified asphalt concrete with basalt gravel as coarse aggregate was compared. This article brings together key data on the two types of mechanism sand placed in a modified bituminous mixture to confirm that limestone mechanism sand can replace basalt mechanism sand. Further economic analysis shows that the price of limestone mechanism sand is significantly lower than that of basaltic mechanism sand, which can alleviate the current situation of scarce basalt source, basaltic mechanism sand processing and high transportation cost in this area.