Materials Reports  2021, Vol. 35 Issue (Z1): 269-273 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Characterization of Recovery Properties of Steel Bridge Pavement Asphalt Materials on Non-destructive Test |
| WANG Min1,2, FAN Xiangyang3,4, WANG Tao1, LUO Rong3,4, HU Deyong1, SHI Chenguang3,4
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1 Chongqing Zhixiang Paving Technology Engineering Co., Ltd., Chongqing 401336, China
2 China Merchants Chongqing Communications Research and Design Institute Co., Ltd., Chongqing 400067, China
3 School of Transportation, Wuhan University of Technology, Wuhan 430063, China
4 Hubei Highway Engineering Research Center, Wuhan 430063, China |
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Abstract The composition and properties of high performance materials for steel bridge deck pavement are quite different, the research of perfor-mance of steel deck pavement material is mainly focused on the strength rule and damage behavior of the loading stage, and less research has been done on the deformation recovery characteristics of the material in the unloading phase. To evaluate the deformation recovery capacity of steel deck surfacing material during the unloading phase, repeated creep and step-loading recovery test was proposed to overcome the shortcomings of creep and step-loading recovery test. It was used to measure the internal stress and residual strain at different time of unloading phase of three typical steel bridge deck paving materials including gussasphalt, epoxy asphalt mixture and stone mastic asphalt. According to the definition of recovery modulus, the recovery modulus at three different creep stress levels was calculated, and the drive deformation recovery ability of the three materials was evaluated in turn. At the same time, based on the viscoelastic theory, the fitting parameters of creep flexibility were determined, and the strain recovery rate of three materials at different intervals were calculated, in order to evaluating the rate of deformation recovery. The results show that the recovery modulus of the materials in a non-destructive state are different from the internal stress, and do not change with the size of the creep load. The epoxy asphalt mixture has the largest recovery modulus, which is about 7 times and 4 times that of the stone mastic asphalt and gussasphalt, and the drive deformation recovery ability of epoxy asphalt mixture is better than gussasphalt and stone mastic asphalt. But at the same interval, the strain recovery rate of gussasphalt is the fastest, and can reach 82% within 3.6 s.
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Published: 16 July 2021
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| Fund:Chongqing Science and Technology Innovation Leading Talents Support Program (CSTCCXLJRC201902), the Chongqing Science and Technology Plan Project (Science and Technology Innovation Special Project for Social Undertaking and People's Livelihood Guarantee) (cstc2015shmszx30027), the Transportation Science and Technology Project of Hubei Province (2016-600-2-2). |
| About author:: Min Wang, doctor of engineering, researcher, chief expert of Chongqing Zhixiang Pudao Technology Engineering Co., Ltd., deputy director of Chongqing Bridge Deck Pavement Engineering Technology Research Center, leading talent of Chongqing's science and technology innovation, part-time master tutor of Chongqing Jiaotong University. For more than ten years, he has been engaged in structural design, material research and development, construction consulting and other aspects of steel bridge deck pavement. He has supported and completed more than 30 research and consulting projects of bridge deck pavement. He has written 3 industrial norms, edited 2 monographs, published more than 70 scientific papers, obtained more than 20 authorized patents, and won 9 provincial and ministerial scientific progress awards. The research results have been applied to more than 40 long-span bridges, such as Hong Kong-Zhuhai-Macao Bridge, Mozambique Maputo Bridge, Anhui Maanshan Yangtze River Highway Bridge, Wuhan Dunkou Yangtze River Bridge, Chongqing Chaotianmen Yangtze River Bridge, etc., which have comprehensively supported the construction and development of long-span bridges.Xiangyang Fan is a doctoral candidate at Wuhan University of Technology. His research fields include constitutive relations of civil engineering materials, viscoelastic fracture mechanics, viscoplastic mechanics, damage mechanics, mechanical analysis of road structure and materials, analysis and prediction of pavement perfor-mance of asphalt mixture, micro-mechanical analysis of composite materials, finite element simulation and calculation, design and method of material performance test. |
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1 Luo S, Qian Z, Yang X, et al.Construction & Building Materials, 2017, 156,131.
2 Yang Y, Qian Z, Song X.Construction & Building Materials, 2015, 94,299.
3 Liu Y, Yao B, Yu C, et al.International Journal of Adhesion & Adhesives, DOI:10.1016/j.ijadhadh.2018.04.011.
4 Zhang H, Zhang G, Han F, et al.Construction & Building Materials, 2018, 159,83.
5 Jia Xiaoyang, Huang Baoshan, Chen Shangjiang,et al. KSCE Journal of Civil Engineering, 2016, 20(7),2755.
6 黄卫东,李本亮,黄明.建筑材料学报,2015,18(4),572.
7 黄卫东,林鹏,郑茂,等.建筑材料学报,2016,19(5),950.
8 杨军,王昊鹏,廖辉. 东南大学学报:自然科学版,2016,46(1),511.
9 Zhang J, Simate G S, Sang I L, et al.Construction & Building Mate-rials, 2016, 111,644.
10 Zhang J, Faruk A N M, Karki P, et al.Construction & Building Mate-rials, 2016, 121,236.
11 Luo Xue, Luo Rong, Robert L Lytton. International Journal of Solids and Structures,2015, 60-61,35.
12 Luo Xue, Luo Rong, Robert L Lytton.Construction and Building Mate-rials, 2013, 48,610. |
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