ATB-30沥青混合料垂直振动成型方法及评价  

Evaluation on Vertical Vibration Compaction Method of ATB-30 Asphalt Mixture

作　　者：蒋应军[1] 陈浙江 徐晓和 梁慧[3] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]金华市公路管理局,浙江金华321000 [3]长安大学材料科学与工程学院,陕西西安710064

出　　处：《建筑材料学报》2014年第4期638-643,共6页Journal of Building Materials

基　　金：交通运输部行业联合科技攻关项目(2010 353 361 300);浙江交通科技项目(2011H25)

摘　　要：用垂直振动成型方法(VVCM)压实ATB-30沥青混合料来模拟现场压实工况,验证了此法的可靠性,同时对比研究了VVCM和马歇尔法对ATB-30沥青混合料物理和力学特性的影响.结果表明:VVCM试件力学强度与现场芯样的相关性高达94.2%,马歇尔试件的相关性不足70.0%;VVCM试件密度较马歇尔试件密度提高约2%,压实度提高1%,力学性能至少提高8.2%.证明VVCM比马歇尔法更适合评价ATB-30沥青混合料力学性能.A vertical vibration compaction method（VVCM） was proposed to simulate the practical compaction loading condition for ATB-30 physical and mechanical properties evaluation. The mechanical properties of ATB-30 by Marshall compaction（MC） method and VVCM are compared. It is obtained that the strength of the specimen by VVCM can reach 94.2 % of that of the ATB-30 collected from a road construction site, while the strength of the specimen by MC method is lower than 70% of that of ATB-30 collected from a road construction site. The density of VVCM specimen is about 2 % larger than that of Marshall specimen. Moreover, 1% compaction increase of ATB-30 results in at least 8.2% mechanical behavior increase. The results show that VVCM is a more reliable method for the ATB-30 mechanical properties evaluation.

关 键 词：沥青混合料 垂直振动成型方法 马歇尔法 抗压强度 劈裂强度 

分 类 号：U416.223[交通运输工程—道路与铁道工程]