Shear Performance of Waterproof Cohesive Layer of Rubber Epoxy Asphalt Stone

QIAN Zhen-dong, XUE Yong-chao, SUN Jian


This paper studied the shear performance of waterproof cohesive layer of a rubber epoxy asphalt stone (REAS)on steel deck pavement, and examined the relationships between the shear performance and the frequent change of bridge slope and environment temperature. Firstly, the oblique shear tests were conducted under different shear angles and freeze-thaw cycle times. Considering the linear relationship between normal stress and shear strength, the cohesive force and the internal friction angle of REAS waterproof cohesive layer were calculated. According to the energy method, shear dissipated energy was analyzed. The test results showed that new chemical cross linking and physical entanglement occurred in the epoxy asphalt binder with rubber power, which exhibits better bonding performance, anti-deforming capability and cryogenic flexibility. Under different shear angles and freeze-thaw cycle times, the shear strength and shear displacement of REAS waterproof cohesive layer were greater than those of EA waterproof cohesive layer. It is demonstrated that the REAS waterproof cohesive layer has better shear performance. On the other hand, the shear strength of the REAS waterproof cohesive layer decreased as a power function with the increase of the shear angle, while it decreased as a parabolic curve with the increase of freeze-thaw cycle times. After five freeze-thaws cycle times, the shear dissipated energy of REAS waterproof cohesive layer decreased by 46.0%, which indicates that the freeze-thaw cycles significantly influenced the shear performance of REAS waterproof cohesive layer.


Keywords: rubber epoxy asphalt stone (REAS),  waterproof cohesive layer,  shear strength,  cohesive force,  freeze-thaw cycles,  shear dissipated energy

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MARTI NELLI P. Bridge deck waterproof membrane evaluation [J]. Journal of Material Science. 1996. 9: 281 — 289.

UZAN J. MOTOLA Y. Damage evaluation in simple shear tests with and without stress reversal of asphalt concrete [J], Road Materials and Pavement Design. 2006. 7( 1): 71—86.

LI Jia. FENG Xiao-tian. SHAO Xu-dong. et al. Research on composite paving system with orthotropic steel bridge deck and thin RFC layer [J]. Journal of Hunan University: Natural Sciences. 2012. 39(12): 7—12. (In Chinese)

POTG1ETER С J. Bitumen rubber chip and spray seals in South Africa[C]//Proceedings of the 3rd Eurasphalt and Eurobitume Congress Vienna. Vienna;Transport Research Labo-ratory, 2004; 713 — 722.

MIN Zhao-hui, KONG Dong lei. HUANG Wei. Fracture characteristic of epoxy resin asphalt mixes for steel deck pavement at low temperatures [J]. Journal of Building Materials, 2012. 15(1); 91 — 95. (In Chinese)

НЕ Li-ping. SHEN Ai-qin. Х1Е Cheng, el al. Orthogonal test for rubber asphalt properties[J]. Journal of Chang’an U-niversity: Natural Sciences. 2014. 34( 1 ): 7 — 12. (In Chinese)

HE Liang. MA Yu. MA Tao. Research on asphalt rubber and its aging performance [J]. Journal of Building Materials. 2013. 16(2): 370-374. (In Chinese)

QIAN Zhen-dong. WANG Rui. CHEN Tuan-jie. Performance of epoxy asphalt and its mixture under different rubber powder dosages[J]. Journal of Building Materials. 2014. 17(2): 331 — 335. (In Chinese)

KONG Qing-lei, WANG Shuai. WANG Gui-zhen, et al. Preparation and mechanism of crumb rubber toughened epoxy asphalt [J]. Chemical Industry Times, 2013, 27(12): 4 — 7. (In Chinese)

CHEN Lei-lei. Qian Zhen-dong. Study on dynamic modulus of epoxy asphalt mixture based on simple perfoemance test [J]. Journal of Building Materials. 2013, 16(2): 341 — 344. (In Chinese)

FAN Ye-hua. HUANG Wei. WANG Jing-min, et al. Research on interface cohesiveness of the waterproofing system for Jiangyin Bridge [J]. Journal of Highway and Transportation Research and Development. 2007, 24 (6): 33 — 36. (In Chinese)

HU С H. QIAN J. Shear stress analysis of long-span steel bridge deck asphalt pavement using FEM [J]. Advanced Materials Research. 2011. 304: 12—17.


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