Curing behavior of epoxy asphalt

Abstract

The curing process of epoxy asphalt was analyzed by Fourier transform infrared (FT-IR) spectroscopy. Effect of curing temperature on viscosity of epoxy asphalt, and changes of mechanical properties with curing time were investigated. The evolution of concentration of epoxy band was followed as a function of the applied curing process. The experimental results indicate that the curing reaction rate of epoxy asphalt is invariable before 70 min at 120 °C, and it decreases when curing time exceeds 70 min. The viscosity of epoxy asphalt increases slowly with curing time at initial curing stage. But it increases quickly after initial curing stage and the initial curing time decreases as the curing temperature increases. The tensile strength increases slowly at incipient curing stage and increases rapidly when curing time is form 20 min to 70 min. The elongation at break shows a decrease with curing time, but it exceeds 200% after cured.

Keywords

epoxy asphalt / curing behavior / FT-IR / viscosity / mechanical property

References

[1] Medani T, Sc M. Asphalt Surfacing Applied to Orthotropic Steel Bridge Decks[R]. In commission of the Dutch Ministry of Transport, Public Works and Water Management, 1999, 7-01-127-1

[2] Zhou W., Hu S. Research of Paving Type for Orthotropic Steel Decks[J]. J. Chin. Forei. Highway, 2006, 26(5): 62-64.

[3] Ronaldo C., Michele S., Eliane M., . Fatigue Life Estimates for a Slender Orthotropic Steel Deck[J]. J. Constr. Steel Res., 2008, 64: 134-143.

[4] Pfeil M.S., Battista R.C., Mergulhao A.J.R. Stress Concentration in Steel Bridge Orthotropic Decks[J]. J. Constr. Steel Res., 2005, 61: 1 172-1 184.

[5] Maria C. Structural Design of Asphalt Pavement on Concrete Bridge[J]. Can. J. Civil Eng., 2004, 31: 695-702.

[6] Polacco G., Stastna J., Biondi D., . Relation between Polymer Architecture and Nonlinear Viscoelastic Behavior of Modified Asphalts[J]. Curr. Opin. Colloid Interface Sci., 2006, 11(4): 230-245.

[7] Yildirim Y. Polymer Modified Asphalt Binders[J]. Constr. Build Mater., 2007, 21(1): 66-72.

[8] Polacco G., Berlincioni S., Biondi D., . Asphalt Modification with Different Polyethylene-based Polymers[J]. Eu. Polym. J., 2005, 41(12): 2 831-2 844.

[9] Wen G., Zhang Y., Yinxi Z., . Rheological Characterization of Storage-stable SBS Modified Asphalts[J]. Polym. Test, 2002, 21(3): 295-302.

[10] Kevin P Gallagher, Donn R Vermilion. Thermosetting Asphalt Having Continuous Phase Polymer[P]. US 5604274, 1997

[11] Qian Z., Luo S., Wang J. Laboratory Evaluation of Epoxy Resin Modified Asphalt Mixture[J]. J. Southeast Univ., 2007, 23(1): 117-121.

[12] Zong H., Wang J., Lu B. Analysis of Time and Temperature Influence on Epoxy Asphalt Mixture[J]. Highway, 2006, 11: 135-138.

[13] Lamontagne J., Dumas P., Mouillet V., . Comparisons by Fourier Transform Infrared (FTIR) Spectroscopy of Different Ageing Techniques: Application to Road Bitumen[J]. Fuel, 2001, 80(4): 483-488.

[14] Sanchez-Soto M., Pages P., Lacorte T., . Curing FTIR Study and Mechanical Characterization of Glass Bead Filled Trifunctional Epoxy Composites[J]. Composite. Sci. Technol., 2007, 67(9): 1 974-1 985.

[15] Evrikleia G., Dimitris S., Irini D. Cure Kinetics of Epoxy-amine Resins Used in the Restoration of Works of Art from Glass or Ceramic[J]. Eu. Polym. J., 2006, 42(12): 3 311-3 323.