[1]朱武威,马景存,姚运仕,等.真空压实下沥青混合料压实性能评价研究[J].西安建筑科技大学学报(自然科学版),2018,50(03):368-0372,0395.[doi:10.15986/j.1006-7930.2018.03.009]
　ZHU Wuwei,MA Jingcun,YAO Yunshi,et al.Evaluation of rompaction performance of asphalt mixture under vacuum compaction[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(03):368-0372,0395.[doi:10.15986/j.1006-7930.2018.03.009]
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真空压实下沥青混合料压实性能评价研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年03期
页码:
368-0372,0395
栏目:
出版日期:
2018-06-30

文章信息/Info

Title:
Evaluation of rompaction performance of asphalt mixture under vacuum compaction
文章编号:
1006-7930(2018)03-0368-05
作者:
朱武威1; 2; 马景存1; 2; 姚运仕1; 2; 王瑞龙1; 2; 冯忠绪1; 2
（1. 长安大学 公路养护装备国家工程实验室，陕西 西安 710064；2.长安大学 道路施工技术与装备教育部重点实验室，陕西 西安 710064）
Author(s):
ZHU Wuwei1; 2;  MA Jingcun1; 2;  YAO Yunshi1; 2;  WANG Ruilong1; 2;  FENG Zhongxu1; 2
（1. National Engineering Laboratory for Highway Maintenance Equipment, Chang′an University, Xi′an 710064, China; 2. Key Laboratory of Road Construction Technology and Equipment of MOE, Chang′an University, Xi′an 710064, China）
关键词:
沥青路面; 真空压实; 沉降量; 空隙率; 劈裂强度
Keywords:
asphalt pavement;  vacuum compaction;  settlement;  porosity;  splitting strength
分类号:
U414
DOI:
10.15986/j.1006-7930.2018.03.009
文献标志码:
A
摘要:
为了改进沥青路面的压实效果，增长沥青路面的寿命，文中提出了一种真空击实的方法提高沥青混合料的压实性能.基于马歇尔击实仪制备真空压实仪并对沥青混合料进行了常规和真空压实对比试验，试验发现在对等的单次击实下和相同的累积击实次数下，真空下沥青混合料单次击实沉降量和累积沉降量都高于常规击实的沉降量；在不同真空度下对沥青混合料进行击实试验，试验结果显示真空度-0.08 MPa下击实的累积沉降量最大；通过进一步对常规击实和真空击实的空隙率和劈裂强度进行试验对比，发现在-008 MPa下的空隙率比常规击实下减小了9.8%，矿料间隙率减小了2.3%，劈裂强度提高了11.52%，试验结果与压实沉降量具有一致性，试验结果表明真空压实的微观结构更为紧密，承载力的效果更好，真空压实能够大大提高沥青路面的压实度，改进沥青路面质量.
Abstract:
In order to improve the compaction effect of asphalt pavement and its service performance, a vacuum compaction method is proposed A vacuum compactor was manufactured based on Marshall compactor and conventional and vacuum compaction tests on asphalt mixture were carried out by it. It is found that, under the equivalent single compaction times and the same cumulative compaction times, the single compaction settlement and cumulative settlement of asphalt mixture under vacuum are higher than those of conventional compaction. The compaction tests of asphalt mixture under different vacuum degrees show that the accumulative settlement of compaction at the vacuum of -0.08 MPa is the largest. By further comparing tests, it is found that, at -008 MPa the void fraction is 9.8% lower than that of conventional compaction, and voids in Mineral Aggregate decreases by 2.3% and the splitting strength increases by 11.52%, which are consistent with the compaction settlement. These test results show that the microstructure of vacuum compaction is more compact and the effect of bearing capacity is better, and vacuum compaction can greatly improve the compaction degree of asphalt pavement and the quality of asphalt pavement.

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相似文献/References:

[1]陈世斌,袁永强,姚运仕,等.沥青路面真空压实的试验研究[J].西安建筑科技大学学报(自然科学版),2018,50(06):901.[doi:10.15986/j.1006-7930.2018.06.021]
　CHEN Shibin,YUAN Yongqiang,YAO Yunshi,et al.Experimental study on vacuum compaction of asphalt pavement[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(03):901.[doi:10.15986/j.1006-7930.2018.06.021]

备注/Memo

备注/Memo:
收稿日期:2018-03-26修改稿日期:2018-05-15
基金项目:国家自然科学基金项目(51208044,51508031)；陕西省自然科学基金项目(2017JM5105)；中央高校基本科研业务费专项项目（310825163408，310825171011）
第一作者:朱武威(1979-)，男，博士生，讲师，主要从事工程机械理论及作业质量控制方面的研究．E-mail:14348201@qq.com
更新日期/Last Update: 2018-09-10