泡沫沥青及其温拌混合料高温性能分析  

Analysis of Road Performance of the Asphalt-foam and Foaming Asphalt Warm Mixture

作　　者：王枫成 南雪峰 朱建平 WANG Feng-cheng;NAN Xue-feng;ZHU Jian-ping(Liaoning Provincial Communications Sciences Institute Co.Ltd.,Shenyang 110015,China;Key Laboratory of Transport Industry of Liaoning Provincial Communications Sciences Institute Co.Ltd.,Shenyang 110015,China;Liaoning New Development Transportation Group Highway Technology Maintenance Co.Ltd.,Shenyang 110000,China)

机构地区：[1]辽宁省交通科学研究院有限责任公司,沈阳110015 [2]辽宁省交通科学研究院有限责任公司交通运输行业重点实验室,沈阳110015 [3]辽宁新发展公路科技养护有限公司,沈阳110000

出　　处：《科学技术与工程》2019年第23期228-233,共6页Science Technology and Engineering

基　　金：辽宁省交通厅重点科研项目(201308)资助

摘　　要：为研究泡沫沥青及其温拌混合料高温性能,采用动态剪切试验(DSR)分析沥青样品发泡前后在原样及短期老化(RTFOT)条件下的高温性能及沥青在经历发泡过程后的性能变化;通过动稳定度和动态模量试验评价泡沫沥青温拌混合料及热拌沥青混合料的高温性能,基于动态模量试验数据拟合得到沥青混合料动态模量主曲线及位移因子,并与热拌沥青混合料的高温性能进行对比。结果表明:采用动态剪切试验(DSR)得到沥青抗车辙因子结果与其混合料高温性能有良好的相关性;基于动态模量主曲线方法可以更全面的评价沥青混合料的高温性能。Studying on high-temperature performance of asphalt-foam and foaming asphalt warm mixture,the foaming asphalt and asphalt high-temperature index in original and rolling thin film oven test were analyzed by dynamic shear rheometer(DSR)tests,and the change high-temperature performance of asphalt having been foamed was investigated.The dynamic stability tests and dynamic modulus tests were carried on evaluating the warm mixture asphalt-foam and hot mixture asphalt high-temperature performance,and the dynamic modulus master curve and displacement factor of asphalt mixture basing on the dynamic modulus tests result were determined by using regression analysis.The trial results show that high-temperature performance of difference asphalt mixtures is relation to asphalt anti-rutting factor by DSR tests.The high-temperature performance of difference asphalt mixtures is dramatically assessed by using the dynamic modulus master curve.

关 键 词：道路工程 泡沫沥青温拌混合料 黏弹性原理 动态模量主曲线 动稳定度 高温性能 

分 类 号：U414[交通运输工程—道路与铁道工程]