Study on Interlayer Bonding Performance of Cement Concrete Bridge Deck

被引：0
|
作者：
Yan K. [1 ]
Huang S. [1 ]
Ge D. [2 ]
Hong Z. [1 ]
机构：
[1] College of Civil Engineering, Hunan University, Changsha
[2] School of Transportation Engineering, Changsha University of Science & Technology, Changsha
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2023年 / 50卷 / 07期
基金：
中国国家自然科学基金;
关键词：
adhesive layer; bonding performance; pull strength; shear strength; temperature;
D O I：
10.16339/j.cnki.hdxbzkb.2023076
中图分类号：
学科分类号：
摘要：
The variation of bonding performance between pavement layers of cement concrete bridge decks with temperature was studied，and the relationship between the temperature properties of the bonding layer and the shear strength of straight shear and oblique shear was explored. The differences in pulling and shear strength of four coating adhesive layers（SBS modified asphalt，WTR modified asphalt，WTR/APAO modified asphalt，AMP-100 second-order reactive adhesive coating）and three modified asphalt crushed stone bonding layers（SBS modified asphalt crushed stone，WTR modified asphalt crushed stone，WTR/APAO modified asphalt crushed stone）were compared and analyzed. Regression analysis was used to obtain the variation law of interlayer intensity with temperature. The study calculated the ratio of the strength between the lower layers and the strength between the lower layers at normal temperature（20 ℃），which was used for the comparative analysis of the temperature sensitivity of the shear strength and the pull strength of the bonding layer；The ratio of oblique shear strength to straight shear strength at different temperatures was also analyzed. The results show that the pull strength between layers，shear strength，and tempera⁃ ture between layers all meet the relationship of a single exponential function，with a goodness of fit R2 above 0.970. The WTR/APAO modified bitumen bond layer and WTR/APAO modified asphalt crushed stone bond layer have ex⁃ cellent mechanical properties，with higher pull and shear strength values at different temperatures than those of the same type of bonding layer. The pulling and shear strength of the AMP-100 bond layer is the least sensitive to tem⁃ perature. An interlayer strength ratio table of 20~40 ℃ was established for interlayer strength estimation. The oblique shear strength is significantly higher than the straight shear strength，and the sensitivity of the oblique shear strength to temperature is lower than that of the straight shear strength. At temperatures ranging from 20℃ to 45 ℃，the ratio of oblique shear strength to straight shear strength ranges from 1.165 to 2.990. © 2023 Hunan University. All rights reserved.
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页码：23 / 32
页数：9
相关论文
共 17 条
  • [1] HUANG X M．, Research status summary of asphalt pavement technology on cement concrete bridge deck［J］, Journal of Traffic and Transportation Engineering, 14, 1, pp. 1-10, (2014)
  • [2] ZHANG F, LI M Q, WANG T Y, Performance of composite waterproof cohesive layer on cement concrete bridge, Journal of Harbin Institute of Technology, 52, 3, pp. 26-32, (2020)
  • [3] XU O M，, HAN S, YU J T．, Effect of interlayer interface on structural performance of concrete bridge deck pavement, Journal of Chang’an University（Natural Science Edition）, 29, 5, pp. 17-20, (2009)
  • [4] GUO M, WANG L B, Study on water permeability，shear and pull-off performance of waterproof bonding layer for highway bridge, International Journal of Pavement Research and Technology, 11, 4, pp. 396-400, (2018)
  • [5] Research on failure mode and mechanism of different types of waterproof adhesive materials for bridge deck［J］, International Journal of Pavement Engineering, 16, 7, pp. 602-608, (2015)
  • [6] LIU Y, CHEN J．, Mechanical properties of a waterproofing adhesive layer used on concrete bridges under heavy traffic and temperature loading［J］, International Journal of Adhesion and Adhesives, 48, pp. 102-109, (2014)
  • [7] ZHANG Q S, Structural mechanics study of tied arch bridge deck overlays of the second Huanghe bridge［J］, China Civil Engineering Journal, 39, 7, pp. 88-93, (2006)
  • [8] LI Z D, HUANG X M, CHEN G X, On modified temperature model for synchronous chip seal waterproof binder course on the concrete bridge［J］, Journal of Chongqing Jiaotong University （Natural Science）, 30, 5, pp. 957-964, (2011)
  • [9] Specification for design of highway asphalt pavement, (2017)
  • [10] WANG H, XIONG M R，, YANG Z．, Research on performance and mechanism of crumb rubber composite modified asphalt with chemical modifier［J］, Journal of Hunan University （Natural Sciences）, 48, 6, pp. 30-37, (2021)
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