石灰石SMA-13沥青混合料的路用性能研究

Study oflimestone SMA-13 asphalt mixture pavement performance

为缓解城市SMA道路建设对硬质石料的需求压力,通过优化SMA级配,对石灰石作为粗集料在SMA路面的应用进行试验研究,结果表明:石灰石SMA沥青混合料的高、低温性能及抗水损害性能均满足规范要求。同时,研究成果在郑州丰庆路工程中得到成功应用。

To alleviate the pressure on urban SMA road construction for hard stone,an experiment has been made to study the performance of limestone as coarse aggregate used in SMA pavement by optimizing the SMA gradation.The results show that both the high and low temperature performance and water-resistant performance of SMA asphalt mixture with limestone can meet the requirements of specification.At the same time,the study results have been successfully applied in the project of Zhengzhou Fengqing Road.