微表处混合料路用性能影响因素

发布时间：2018-07-01 21:47

  本文选题：道路工程 + 微表处　； 参考：《长安大学学报(自然科学版)》2014年02期

【摘要】：微表处是一种路面维修养护技术,对缓解路面病害的发生发展、延长路面使用寿命起到了积极作用。为提高微表处混合料的抗水损性及抗车辙性能,对微表处混合料路用性能影响因素进行研究。采用湿轮磨耗试验、负荷轮粘附砂试验和轮辙变形试验方法,通过使用不同级配、不同集料以及添加纤维,分析这些因素对微表处混合料的水稳定性以及抗车辙性等路用性能的影响。试验结果表明:玄武岩无论是在水稳定性能还是抗车辙性能都优于石灰岩;对于MS-Ⅲ型级配微表处混合料考虑水稳定性时,级配选定在上限与中值之间较好;微表处混合料以抗车辙性能为主时,级配选定在中值与下限之间较好;掺加2‰聚丙烯单丝纤维的微表处混合料可提高微表处混合料的抗车辙性能。
[Abstract]:Micro-surfacing is a kind of pavement maintenance and maintenance technology, which plays an active role in alleviating the occurrence and development of pavement diseases and prolonging pavement service life. In order to improve the water loss resistance and rutting resistance of micro-surfacing mixture, the influencing factors of pavement performance of micro-surfacing mixture were studied. By using wet wheel wear test, load wheel adhesion sand test and wheel rut deformation test, by using different grades, different aggregates and adding fibers, The effects of these factors on the water stability and rutting resistance of the mixture are analyzed. The experimental results show that basalt is superior to limestone in both water stability and rutting resistance, and that when water stability is considered for MS- 鈪，

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