Study on the microstructure and properties of hot-mix epoxy asphalt

  • Guodong Zeng
  • Wei XuEmail author
  • Hongming Huang
  • Xiaoning Zhang


Epoxy asphalt concrete (EAC) has excellent high-temperature stability and fatigue durability and is extensively used as steel deck pavement. The spatial microstructure of one type of hot-mix epoxy asphalt was investigated using fluorescence microscopy and scanning electron microscopy (SEM). The properties of the epoxy asphalt (EA) and EAC with different epoxy resin to epoxy asphalt binder (epoxy to binder, ETB) ratios were investigated using tensile tests, rutting tests, Marshall tests and three-point beam bending tests. The curing process of the EAC at different temperatures was evaluated. The experimental results indicated that the asphalt phase transferred to the epoxy phase at a 37 wt% ETB ratio. When the ETB ratio was above 37 wt%, the epoxy resin began to form a continuous phase with a spatial crosslinked structure, and the asphalt acted as the disperse phase, filling the crosslinked structure of the epoxy resin and providing toughening and anticorrosion effects. The mechanical test results showed that the ETB ratio had a significant influence on the performance of the EA and EAC. The increasing strength curves during the curing process showed that the strength of the EAC increased faster at higher temperatures and during the first half of the curing process.


Epoxy asphalt Microstructure Spatial crosslinked structure Curing process 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    Q. Lu, J. Bors, Alternate uses of epoxy asphalt on bridge decks and roadways, Constr. Build. Mater. 78 (2015) 18–25.CrossRefGoogle Scholar
  2. [2]
    H. F. Xie, J. Dai, C. G. Liu, Z. R Yuan, Z. L. Wang, R. S. Cheng, Thermal analysis of epoxy asphalts, Gaofenzi Cailiao Kexue Yu Gongcheng/polymeric Materials Science & Engineering, 25 (11) (2009) 115–117.Google Scholar
  3. [3]
    X. Yu, F. Dong, G. Ding, S. Liu, S. Shen, Rheological and microstructural properties of foamed epoxy asphalt, Constr. Build. Mater. 114 (2016) 215–222.CrossRefGoogle Scholar
  4. [4]
    H. Yin, C. Wang, Y. Wang, Z. Yuan, Z. Wang, H. Xie, et al. Cure reaction and morphology of epoxy asphalts, Gaofenzi Cailiao Kexue Yu Gongcheng/polymeric Materials Science & Engineering, 28 (11) (2012) 30–33.Google Scholar
  5. [5]
    Y. Kang, Z. Chen, Z. Jiao, W. Huang, Rubber-like thermosetting epoxy asphalt composites exhibiting atypical yielding behaviors, J. Appl. Poly. Sci. 116 (3) (2010) 1678–1685.Google Scholar
  6. [6]
    H. Yin, Y. Zhang, Y. Sun, W. Xu, D. Yu, H. Xie, et al. Performance of hot mix epoxy asphalt binder and its concrete, Mater. Struct. 48 (11) (2015) 1–11.CrossRefGoogle Scholar
  7. [7]
    Y. Xiao, M. F. C. V. D. Ven, A. A. A. Molenaar, S. P. Wu, Possibility of using epoxy modified bitumen to replace tar-containing binder for pavement antiskid surfaces, Constr. Build. Mater. 48 (19) (2013) 59–66.CrossRefGoogle Scholar
  8. [8]
    R. G. Hicks, I. J. Dussek, C. Seim, Asphalt surfaces on steel bridge decks, Transp. Res. Rec. J. Transp. Res. Brd. 1740 (2000) 135–142.CrossRefGoogle Scholar
  9. [9]
    R. Gaul, A long life pavement for orthotropic bridge decks in China. In: New Technologies in construction and rehabilitation of portland cement concrete pavement and bridge deck pavement. Geotechnical Special Publications (GSP) 196 (2009) 1–8.Google Scholar
  10. [10]
    Y. Xiao, M.F.C. van de Ven, A.A.A. Molenaar, Z. Su, F. Zandvoort, Characteristics of two-component epoxy modified bitumen, Mater. Struct. 44 (2011) 611–622.CrossRefGoogle Scholar
  11. [11]
    H. Yin, C. Wang, Y. Wang, Z. Yuan, Z. Wang, H. Xie, et al. Cure reaction and morphology of epoxy asphalts, Gaofenzi Cailiao Kexue Yu Gongcheng, polymeric Materials Science & Engineering 28 (11) (2012) 30–33. (in Chinese)Google Scholar
  12. [12]
    D. Zhe, L.P. Li, Study on Dynamic Mechanical Properties and Microstructure of Epoxy Asphalt, Proceedings of International Conference on Applied Science and Engineering Innovation, 2015 516–523.Google Scholar
  13. [13]
    Y. Liu, J. Zhang, R. Chen, J. Cai, Z. Xi, H. Xie, (2017). Ethylene vinyl acetate copolymer modified epoxy asphalt binders: phase separation evolution and mechanical properties, Constr. Build. Mater. 137, 55–65.CrossRefGoogle Scholar
  14. [14]
    J. Yu, P. Cong, S. Wu, Laboratory investigation of the properties of asphalt modified with epoxy resin, J. Appl. Poly. Sci. 113 (6) (2010) 3557–3563.CrossRefGoogle Scholar
  15. [15]
    J. Hu, Z. Qian, Y. Xue, Y. Yang, Investigation on fracture performance of lightweight epoxy asphalt concrete based on microstructure characteristics, J. Mater. Civil Eng. 289 (2016) 04016084.CrossRefGoogle Scholar
  16. [16]
    W. Zhou, X. Yue, F.C. Tsai, T. Jiang, H. Zhao, J. Wen, Effects of compound curing agent on the thermo-mechanical properties and structure of epoxy asphalt, Inter. J. Pave. Eng. 18 (10) (2017) 928–936.CrossRefGoogle Scholar
  17. [17]
    Ministry of Transport of P.R. China. Highway engineering asphalt and asphalt mixture testing procedures. JTG E20-2011. China Communications Press, Beijing, 2011 (in Chinese).Google Scholar
  18. [18]
    C. N. Chiangmai, Fatigue-Fracture Relation on Asphalt Concrete Mixture (Master thesis), University of Illinois at Urbana-Champaign, Urbana, 2010.Google Scholar
  19. [19]
    T. Yuksel, High temperature properties of wax modified binders and asphalt mixtures, Constr. Build. Mater. 23 (2009) 3220–3224.CrossRefGoogle Scholar
  20. [20]
    R. Thomas, S. Durix, C. Sinturel, T. Omonov, S. Goossens, G. Groeninckx, P. Moldenaers, S. Thomas, Cure kinetics, morphology and miscibility of modified DGEBA-based epoxy resin: Effects of a liquid rubber inclusion, Polymer 48 (2007) 1695–1710.CrossRefGoogle Scholar
  21. [21]
    J.C. Cabanelas, B. Serrano, M.G. Gonzalez, J. Baselga, Confocal microscopy study of phasemorphology evolution in epoxy/polysiloxane thermosets, Polymer 46 (2005) 6633–6639.CrossRefGoogle Scholar
  22. [22]
    B. Mobasher, M.S. Mamlouk, H.M. Lin, Evaluation of crack propagation properties of asphalt mixtures, J Transp. Eng. ASCE 123(1997) 405–13.CrossRefGoogle Scholar
  23. [23]
    M.A. Mull, K. Stuart, A. Fracture resistance characterization of chemically Yehia, modified crumb rubber asphalt pavement, J. Mater. Sci. 37 (3) (2002) 557–566.CrossRefGoogle Scholar
  24. [24]
    W. Q. Wang, H. Y. He, Study on performance of epoxy asphalt concrete applied in the deck pavement of pingsheng steel bridge, Adv. Mater. Res. 150–151 (2010) 470–474.Google Scholar
  25. [25]
    W. Xu, X. Zhang, T.U. Changwei, Study of the Repair Scheme and Engineering Implementation of Humen Bridge Steel Deck Pavement, HIGHWAY 5 (2010) 67–71. (in Chinese).Google Scholar

Copyright information

© Higher Education Press Limited Company 2019

Authors and Affiliations

  • Guodong Zeng
    • 1
    • 2
  • Wei Xu
    • 1
    Email author
  • Hongming Huang
    • 2
  • Xiaoning Zhang
    • 1
  1. 1.School of Civil Engineering and TransportationSouth China University of TechnologyGuangzhouChina
  2. 2.Foshan City Monitoring Station of Road and Bridge EngineeringFoshanChina

Personalised recommendations