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为了分析石灰岩在SMA沥青混合料中的适用性,从岩石分类、矿物组成、抗压强度以及坚固性等微观角度对比分析了石灰岩与玄武岩特点。同时,对石灰岩和玄武岩的力学特性进行了试验研究。结果表明:石灰岩的抗压碎性能、耐磨光性能、抗冲击性能以及耐磨耗性能均满足要求,可以用于SMA沥青混合料。在此基础上,提出经济型SMA石灰岩技术标准及要求。
In order to analyze the applicability of limestone in SMA asphalt mixture, the characteristics of limestone and basalt are compared and analyzed from the perspectives of rock classification, mineral composition, compressive strength and firmness. At the same time, the mechanics characteristics of limestone and basalt are studied experimentally. The results show that the limestone can meet the requirements of anti-crushing performance, wear resistance, impact resistance and wear resistance and can be used for SMA asphalt mixture. On this basis, proposed economic SMA limestone technical standards and requirements.