基于加速加载试验的湖沥青微表处路用性能研究  

Research on Road Performance of TLA Micro-surfacing Based on Accelerated Loading Test

作　　者：顾建军 虞将苗 杨震[2] 王金辉 

机构地区：[1]安徽省交通控股集团有限公司,合肥市230088 [2]华南理工大学土木与交通学院,广州市510640 [3]浙江大象交通科技有限公司,杭州市310000

出　　处：《公路》2017年第5期221-226,共6页Highway

基　　金：国家自然科学基金;项目编号51678251;广州市科技计划项目;项目编号2014Y2-00205;安徽省交通控股集团有限公司项目;项目编号YHZX-GC/(2013)009

摘　　要：为研究湖沥青(TLA)对微表处路用性能的影响,本文采用拌和试验、黏聚力试验以及室内加速加载试验,研究不同TLA掺配比例下微表处混合料的拌和时间、30min与60min黏聚力、抗滑性能以及抗剥落性能等。试验结果表明,随着TLA掺配比例的提高,微表处的拌和时间、黏聚力、抗滑性能以及抗剥落性能均得到有效提高;但过多的TLA掺量不利于交通的快速开放,同时TLA掺配比例的增加对黏聚力、抗滑性能以及抗剥落性能的提高具有边际递减效应。综合试验分析结果并考虑造价因素,推荐微表处混合料的TLA适宜掺配比例为改性乳化沥青质量的2%~3%。In order to study the effect of TLA on micro-surfacing pavement performance, mixing time, cohesion in 30min and 60min, anti skid properties and anti peeling performance of micro-surfacing with different TLA blending ratios are investigated by utilized mixing test, cohesion test and indoor accelerated loading test respectively. The results indicate that the mixing time, cohesion, anti skid properties and anti peeling performance increase significantly with the increase of TLA blending ratio. However excessive TLA content is not conductive to the rapid opening of traffic, and the increase of TLA blending ratio has a marginal decreasing effect on the improvement of cohesion, anti skid properties and anti peeling performance. Integrating the analysis of test results and considering the cost factor, in this article it is recommended that the best TLA blending ratio of micro-surfacing is 20%-3 % of the weight of modified asphalt emulsion.

关 键 词：湖沥青 微表处 加速加载试验 抗滑性能 抗剥落性能 

分 类 号：U416.03[交通运输工程—道路与铁道工程]