嘉安高速回收沥青混合料改性技术试验分析  被引量:1

Experimental Analysis of RAP Modification for Jiayuguan-Anxi Expressway

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作  者:魏强 商博明 蔡乾东 徐培华[3] 

机构地区:[1]甘肃省酒泉公路管理局,甘肃酒泉735000 [2]陕西长大博源公路养护科技有限公司,陕西西安710075 [3]长安大学公路学院,陕西西安710064

出  处:《筑路机械与施工机械化》2017年第7期50-53,共4页Road Machinery & Construction Mechanization

基  金:甘肃省科技厅科技项目(2016Y0316)

摘  要:为了研究自主开发的回收沥青混合料改性剂MaR的性能,对嘉安高速铣刨回收料沥青混合料进行了热再生改性试验研究。将添加改性剂的回收料制备成试件,并进行车辙试验、浸水马歇尔试验、低温劈裂强度试验以及冻融劈裂强度试验。试验结果表明:回收沥青混合料改性剂MaR使用方便,且使用改性剂的再生沥青混合料各项指标较未改性的混合料均有一定程度的改善,即MaR改性剂能够有效提升回收沥青混合料的综合性能。In order to study the performance of MaR, a self-developed modifier for reclaimed asphalt pavement (also known as RAP), experimental study on the hot recycling and modification of RAP was conducted on the materials reclaimed from the milling of Jiayuguan-Anxi Expressway. The recovered material to which the modifier was added was prepared as a specimen, and the rutting test, Marshall stability test, low-temperature splitting strength test and freeze-thaw cycles were carried out. The results indicate that the MaR is easy to use, and the indicators of the asphalt mixture modified with MaR has a certain degree of improvement compared with that of the original mixture, which means the MaR modifier can effectively improve the comprehensive performance of the reclaimed asphalt pavement.

关 键 词:热再生 混合料改性 试验研究 MAR 

分 类 号:U418.6[交通运输工程—道路与铁道工程]

 

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