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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (5): 791-797    DOI: 10.3785/j.issn.1008-973X.2012.05.003
土木工程     
微表处混合料室内加速加载试验
蔡旭,王端宜,张吉庆，张顺先
华南理工大学 土木与交通学院, 广东 广州 510640
Indoor accelerated loading test on micro-surfacing coating
CAI Xu, WANG Duan-yi, ZHANG Ji-qing, ZHANG Shun-xian
School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640,China
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摘要：

针对现有微表处性能实验评价方法的不足,提出基于“轮胎驱动式路面功能加速加载试验系统”的材料性能评价方法,对掺加不同改性乳化沥青的微表处混合料进行室内加速加载试验.结果表明,改性乳化沥青残留物性质对微表处混合料性能有直接影响,适宜的沥青能够延长使用年限73%,提升长期效益60%;摆值、构造深度指标与宽度变形率间相关系数为0.74与0.77;“微表处混合料蠕变度”K指标反映材料抗滑性能变化的敏感度,可用以描述混合料蠕变与矿料重分布.试验也表明“轮胎驱动式路面功能加速加载试验系统”可真实模拟轮胎与路面间的相互作用．
Abstract:

In view of the shortcomings of the former test methods for Micro-Surfacing, an assessment method based on “Driving Wheel Pavement Analyzer” is proposed to carry out an indoor accelerated looding test on Micro-Surfacing added with different kinds of modified emulsified asphalt. Results show that the properties of modified emulsified asphalt residue directly influence the performance of Micro-Surfacing, and application of suitable asphalt can prolongs the service life by 73% and long-term benefit by 60%; the correlation coefficients between British Pendulum Number(BPN), Texture Depth(TD) indexes and width deformation rate are 0.74 and 0.77; the “Micro-Surfacing mixture creep index” K reflects the anti-slide sensitivity of mixture, which represents describes the creep and aggregates redistribution of the material. Tests also show that the “Driving Wheel Pavement Analyzer” can simulate the interaction between tires and pavement.
出版日期: 2012-05-01
:  U 418.6  
基金资助:

广东省交通运输厅科技资助项目(201002008,201002007).
通讯作者: 王端宜, 男, 教授, 博导.     E-mail: tcdywang@scut.edu.cn
作者简介: 蔡旭（1985-）, 男, 博士生, 主要从事路面养护技术以及路面结构研究. E-mail: xu.cai@mail.scut.edu.cn
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引用本文:

蔡旭,王端宜,张吉庆，张顺先. 微表处混合料室内加速加载试验[J]. J4, 2012, 46(5): 791-797.

CAI Xu, WANG Duan-yi, ZHANG Ji-qing, ZHANG Shun-xian. Indoor accelerated loading test on micro-surfacing coating. J4, 2012, 46(5): 791-797.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.05.003    或    http://www.zjujournals.com/eng/CN/Y2012/V46/I5/791

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