[1] Zheng Dong, Qian Zhendong, Wang Rui, Liu Yang, et al. Design and laboratory evaluation of fog-sealed chip sealon epoxy asphalt pavement for steel bridge deck [J]. Journal of Southeast University (English Edition), 2017, 33 (1): 101-105. [doi:10.3969/j.issn.1003-7985.2017.01.017]
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Design and laboratory evaluation of fog-sealed chip sealon epoxy asphalt pavement for steel bridge deck(
)
钢桥面环氧沥青铺装用雾封层加碎石封层的设计与试验评估
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 33
- Issue:
- 2017 1
- Page:
- 101-105
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2017-03-30
Info
- Title:
- Design and laboratory evaluation of fog-sealed chip sealon epoxy asphalt pavement for steel bridge deck
- 钢桥面环氧沥青铺装用雾封层加碎石封层的设计与试验评估
- Author(s):
- Zheng Dong1,Qian Zhendong1,Wang Rui2,Liu Yang1
-
1Intelligent Transportation System Research Center, Southeast University, Nanjing 210096, China
2Administrant Department of Suzhou Highway, Suzhou 215007, China
- Keywords:
- pavement maintenance; composite seal; epoxy asphalt; laboratory evaluation; pavement condition simulation; steel bridge deck pavement
- PACS:
- U418.6
- DOI:
- 10.3969/j.issn.1003-7985.2017.01.017
- Abstract:
- In order to improve the surface performance of epoxy asphalt pavement(EAP)for steel bridge deck, an epoxy asphalt chip seal(ECS)covered by a cationic emulsified asphalt fog seal(i.e., fog-sealed chip seal)is proposed and a laboratory study is conducted to design and evaluate the fog-sealed chip seal. First, the evaluation indices and methods of the chip seal on steel bridge deck pavement were proposed. Secondly, the worst pavement conditions during the maintenance time were simulated by the small traffic load simulation system MMLS3 and the short-term aging test for minimizing the failure probability of chip seal. Finally, the design parameters of fog-sealed chip seal were determined by the experimental analysis and the performance of the designed fog-sealed chip seal was evaluated in the laboratory. Results indicate that the proposed simulation method of pavement conditions is effective and the maximal load repetitions on the EAP slab specimen are approximately 925 300 times. Moreover, the designed fog-sealed chip seal can provide a dense surface with sufficient skid resistance, aggregate-asphalt adhesive performance and interlayer shearing resistance.
- 为了改善钢桥面环氧沥青铺装层(EAP)的表面性能,提出了一种阳离子乳化沥青雾封层与环氧沥青碎石封层(ECS)复合的封层结构,并结合室内试验对复合封层结构进行设计和性能评价.首先,提出了钢桥面环氧沥青铺装层用碎石封层的评价指标与相应研究方法.其次,为了最小化封层结构的失效概率,采用小型加速加载设备MMLS3和短期老化试验对养护期内最坏路面状况进行模拟.最后,通过试验分析确定复合封层结构的设计参数,并对所设计的复合封层结构进行性能评价.结果表明:所提出的路面状况模拟方法是有效的,且作用在EAP车辙板上最大的荷载重复次数约为925 300次.此外,复合封层结构可以提供一个密实表面,并且具有足够的抗滑性能、集料沥青间的黏结性能及层间抗剪切性能.
References:
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Memo
- Memo:
-
Biographies: Zheng dong(1990—), male, graduate; Qian Zhendong(corresponding author), female, doctor, professor, qianzd@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51378122).
Citation: Zheng Dong, Qian Zhendong, Wang Rui, et al. Design and laboratory evaluation of fog-sealed chip seal on epoxy asphalt pavement for steel bridge deck[J].Journal of Southeast University(English Edition), 2017, 33(1):101-105.DOI:10.3969/j.issn.1003-7985.2017.01.017.