Laboratory Assessment of Epoxy Asphalt Mixture Incorporating Tire Rubber Waste
Keywords:TRW ; epoxy asphalt; improved epoxy asphalt; novolac.
The use of epoxy asphalt in road paving is one of the promising solutions for long-life road pavements in service with minimal maintenance. However, the high cost still stands as an obstacle to the widespread use of this high-performance material. The use of tire rubber waste (TRW) is one of the solutions in order to reduce costs, improve the environment, and improve the performance of epoxy asphalt mixtures, in addition to alleviating the brittle behaviour that epoxy asphalt tends to. This study proposes to add TRW in improving epoxy asphalt produced in local laboratories by using phenol Novolac resin as an epoxy curing agent of the epoxy base inside asphalt binder to produce and evaluate improved epoxy asphalt. The percentage of epoxy base used was 25% of the asphalt binder mixed with a 1:1 ratio of epoxy to Novolac using potassium hydroxide (KOH) as a catalyst. Whereas the proportions of added TRW were (1%, 2%, and 3%) of the total mixture weight by using the dry mixing method. The results showed, at its best values at 2% of TRW, that there was an increase in Marshall stability by 10%, and Marshall flow remained within specification limits with a decrease in the value of air voids at the highest bulk density, and a slight decrease in indirect tensile strength by 2%, with remaining excellent resistance to moisture sensitivity at 94%, and improvement in resistance to permanent deformation (rutting) by 14%. This indicates an improvement in the improved epoxy asphalt mixtures by the addition of TRW compared to the reference epoxy asphalt mixtures.
Kang Y, Song M, Pu L, Liu T (2015) Rheological behaviors of epoxy asphalt binder in comparison of base asphalt binder and SBS modified asphalt binder. Construction and Building Materials, 76: 343-350. DOI: https://doi.org/10.1016/j.conbuildmat.2014.12.020
Garber NJ, Hoel LA Hoel (2009) Traffic & Highway Engineering-SI Version. Cengage Learning.
Vyrozhemskyi y, Kopynets I, Kischynskyi S, and Bidnenko N (2017) Epoxy asphalt concrete is a perspective material for the construction of roads. IOP Conference Series: Materials Science and Engineering, 236(1): 0-6. DOI: https://doi.org/10.1088/1757-899X/236/1/012022
Apostolidis P., Liu X, deVen MV, Erkens S, Scarpas T (2020) Control the crosslinking of epoxy-asphalt via induction heating. International Journal of Pavement Engineering,21(8): 956-965. DOI: https://doi.org/10.1080/10298436.2019.1652741
Wang Y, Ye J, Liu Y, Qiang X, Feng L (2013) Influence of freeze-thaw cycles on properties of asphalt-modified epoxy repair materials. Construction and Building Materials, 41: 580-585. DOI: https://doi.org/10.1016/j.conbuildmat.2012.12.056
Apostolidis P, Liu X, Kasbergen C, deVen MFC, Pipintakos G, Scarpas A (2018) Chemo-rheological study of hardening of epoxy modified bituminous binders with the finite element method. Transportation Research Record, 2672(28): 190-199. DOI: https://doi.org/10.1177/0361198118781377
Wang Z, Zhang S (2018) Fatigue endurance limit of epoxy asphalt concrete pavement on the deck of long-span steel bridge. International Journal of Pavement Research and Technology, 11(4): 408-415. DOI: https://doi.org/10.1016/j.ijprt.2017.12.004
Lu Q, Bors J (2015) Alternate uses of epoxy asphalt on bridge decks and roadways. Construction and Building Materials, 78: 18-25. DOI: https://doi.org/10.1016/j.conbuildmat.2014.12.125
Liu Y, Xi Z, Cai J, Xie H (2017) Laboratory investigation of the properties of epoxy asphalt rubber (EAR). Materials and Structures, 50(5), 219. DOI: https://doi.org/10.1617/s11527-017-1089-4
Presti DL (2013) Recycled tyre rubber modified bitumens for road asphalt mixtures: A literature review. Construction and Building Materials, 49: 863-881. DOI: https://doi.org/10.1016/j.conbuildmat.2013.09.007
Gong J, Liu Y, Wang Q, Xi Z, Cai J, Ding G, Xie H (2019) Performance evaluation of warm mix asphalt additive modified epoxy asphalt rubbers. Construction and Building Materials, 204: 288-295. DOI: https://doi.org/10.1016/j.conbuildmat.2019.01.197
Takeichi T, Furukawa N (2012) Epoxy resins and phenol-formaldehyde resins. DOI: https://doi.org/10.1016/B978-0-444-53349-4.00157-6
Curt A (2004) NM Epoxy Handbook. Nils Malmgren AB.
Ratna D (2009) General Introduction to Thermoset Networks 1.1. Handbook of thermoset resins, p. 1-59. DOI: https://doi.org/10.3139/9783446433458.001
SCRB RE (2003) Standard Specifications for Roads and Bridges. Iraqi Roads and Bridges Directorate: Iraq.
Albayati AH, Al-Azawee ET (2018) Properties of epoxy-asphalt pavement mixture for bridge decks. Al-Nahrain Journal for Engineering Sciences, 21(1): 20-27. DOI: https://doi.org/10.29194/NJES21010020
Gaul RW (1996) Epoxy Asphalt Concrete--a Polymer Concrete with 25 years' Experience. Special Publication, 166: 233-252.
Tsai B-W, Coleri E, Harvey JT, Monismith CL (2016) Evaluation of AASHTO T 324 hamburg-wheel track device test. Construction and Building Materials, 114: 248-260. DOI: https://doi.org/10.1016/j.conbuildmat.2016.03.171
Wang X, Wu R, Zhang L (2019) Development and performance evaluation of epoxy asphalt concrete modified with glass fibre. Road Materials and Pavement Design, 20(3): 715-726. DOI: https://doi.org/10.1080/14680629.2017.1413006
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