基于纤维微表处摊铺机的加铺层效益分析

Benefits analysis of overlay based on fiber micro-surfacing paver

纤维微表处加铺层具有优越的路用性能,根据复合式沥青路面使用性能衰变规律建立加铺层的性能衰变方程,并结合等效年度费用法对比分析普通微表处、聚丙烯纤维微表处、玄武岩纤维微表处3种混合料的使用寿命和经济效益.研究发现,3种微表处混合料中,聚丙烯纤维微表处加铺层具有更长的使用寿命,且经济效益最好.

Fiber micro-surfacing overlay has excellent pavement performance.The performance decay equations of overlay are established according to service performance decay law of composite asphalt pavement.And combining with equivalent annual cost method,service life and economic benefits of three kinds of mixtures are comparatively analyzed,which including micro-surfacing,polypropylene fiber micro-surfacing and basalt fiber micro-surfacing.The study results show that as far as the selected micro-surfacing mixtures,the polypropylene fiber micro-surfacing overlay has a longer service life and best economic benefit.