期刊论文

Optimum Grading and Aggregate Ratio of Ultra-Thin Overlay of Cold Asphalt Mixture

中文

武汉工程大学学报

1674-2869

2018

40

3

296-300

10.3969/j.issn.1674-2869.2018.03.013

国家自然科学基金（51408445）； 武汉建设科技计划项目（201709）；

本校为其他机构

利用标准马歇尔实验,测定SMA-10、Novachip Type B与UTAC-10三种级配的稳定度、空隙率和饱和度,确定冷拌超薄罩面沥青混合料最佳级配;利用修正马歇尔方法,确定SMA-10、Novachip Type B与UTAC-10三种级配的沥青混合料最佳油石比.研究结果表明:从稳定度方面看,SMA-10与UTAC-10级配比Novachip Type B级配高46.9% ;从空隙率方面看,SMA-10级配的沥青混合料比Novachip Type B与UTAC-10级配小32.7%,由此得出SMA-10的级配更优的结论;SMA-10、Novachip Type B与UTAC-10三种级配沥青混合料的最佳油石比分别为5.3%、4.7%和5.0%.

The stability,void ratio and saturation index of SMA-10,Novachip Type B and UTAC-10 were measured to determine optimum gradation of the ultra-thin overlay of cold asphalt mixture with standard Marshall experiment. The aggregate ratio of SMA-10,Novachip,Type B and UTAC-10 was also determined with the modified Marshall experiment. The results showed that the stabilities of SMA-10 and UTAC-10 were 46.9% higher than that of Novachip Type B;the void ratio of SMA-10 was 32.7% smaller than those of Type B and UTAC-10. Therefore,SMA-10 is the optimum asphalt aggregate gradation,the optimum bitumen agg...