Evaluation of UV aging behaviors of polyphosphoric acid (PPA) modified asphalt and its asphalt mixture

Document Type : Article

Authors

1 College of Civil and Transportation Engineering, Hohai University

2 Zhejiang Scientific Research Institute of Transport, Hangzhou, Zhejiang, 310006, China.

3 Guangxi Transportation Research Institute, Nanning, Guangxi, 530007, China.

Abstract

Effects of polyphosphoric acid (PPA) on the ultraviolet (UV) aging properties of asphalt and asphalt mixture were studied. The morphologies of these binders were characterized by FTIR spectra and TG analysis, then the influence of PPA on asphalt and its mixture before and after UV aging were investigated by the physical properties and pavement performances. Results show that the mechanisms of PPA modified asphalt are physical and chemical reactions; both UV aging and PPA additive could prompted the polycondensation of light components in asphalt. Compared with control samples, the introduction of PPA enhances the asphalt properties and intensifies the asphalt mixture performances. Furthermore, the asphalt performance aging variations (penetration aging index, softening point increment, ductility aging index, G*/sinδ aging index) decrease significantly due to the introduction of PPA. This manifests that the effects of UV aging on the behaviors of asphalt and asphalt mixture are restricted by the addition of PPA through inhibiting the increase of carbonyl in the oxidation process.

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1. Yu, J.Y., Feng, P.C., Zhang, H.L., et al. E_ect of organo-montmorillonite on aging properties of asphalt", Construction & Building Materials, 23(7), pp. 2636{2640 (2009). 2. Li, Y., Moraes, R., Lyngdal, E., et al. E_ect of polymer and oil modi_cation on the aging susceptibility of asphalt binders", Transportation Research Record: Journal of the Transportation Research Board, 2574, pp. 28{37 (2016). 3. Liu, G., Nielsen, E., Komacka, J., et al. Rheological and chemical evaluation on the ageing properties of SBS polymer modi_ed bitumen: From the laboratory to the _eld", Construction & Building Materials, 51, pp. 244{248 (2014). 4. Menapace, I. and Masad, E. Evolution of the microstructure of warm mix asphalt binders with aging in an accelerated weathering tester", Journal of Materials in Civil Engineering, 29(10), 04017162 (2017). 5. Catalgol, B., Ziaja, I., Breusing, N., et al. The proteasome is an integral part of solar ultraviolet a radiation-induced gene expression", Journal of Biological Chemistry, 284(44), pp. 30076{30086 (2009). 6. Durrieu, F., Farcas, F., and Mouillet, V. The in- uence of UV aging of a Styrene/Butadiene/Styrene modi_ed bitumen: Comparison between laboratory and on site aging", Fuel, 86(s10-11), pp. 1446{1451 (2007). 7. Zhang, F., Yu, J.Y., and Han, J. E_ects of thermal oxidative ageing on dynamic viscosity, TG/DTG, DTA and FTIR of SBS- and SBS/sulfur-modi_ed asphalts", Construction & Building Materials, 25(1), pp. 129{37 (2011). 8. Naskar, M., Reddy, K.S., Chaki, T.K., Divya, M.K., and Deshpande, A.P. E_ect of ageing on di_erent modi_ed bituminous binders: comparison between RTFOT and radiation ageing", Mater Struct, 46, pp. 1227{1241(2013). 9. Zhang, F. and Yu, J. The research for highperformance SBR compound modi_ed asphalt", Construction & Building Materials, 24(3) pp. 410{418 (2010). 10. Singh, D., Ashish, P.K., Kataware, A., et al. Evaluating performance of PPA-and-Elvaloy-modi_ed binder containing WMA additives and lime using MSCR and LAS tests", Journal of Materials in Civil Engineering, 29(8), 04017064 (2017). 11. Domingos, M.D.I. and Faxina, A.L. Rheological behaviour of bitumens modi_ed with PE and PPA at di_erent MSCR creep-recovery times", International Journal of Pavement Engineering, 16(9), pp. 1{13 (2015). 12. Jafari, M., Babazadeh, A., and Rahi, M. Evaluating rutting and fatigue characteristics of binder containing SBS and PPA and their relationship with the mixture sti_ness parameter", Journal of Materials in Civil Engineering, ASCE, 29(9), 04017143 (2017). 13. Alam, S. and Hossain, Z. Changes in fractional compositions of PPA and SBS modi_ed asphalt binders", Construction & Building Materials, 152, pp. 386{393 (2017). 14. Baldino, N., Gabriele, D., Rossi, C.O., et al. Low temperature rheology of polyphosphoric acid (PPA) added bitumen", Construction & Building Materials, 36, pp. 592{596 (2012). 15. Huang, S., Turner, T.F., Miknis, M.F.P., et al. Longterm aging characteristics of polyphosphoric acidmodi _ed asphalts", Transportation Research Record: Journal of the Transportation Research Board, 2051, pp. 1{7 (2008). 16. Huang, S., Miknis, F.P., Schuster, W.C., et al. Rheological and chemical properties of hydrated lime and polyphosphoric acid-modi_ed asphalts with long-term aging", Journal of Materials in Civil Engineering, ASCE, 23(5), pp. 628{637 (2011). 17. Hu, B.,Wang, Y.S., and Liu, G.R. The characteristics of ultraviolet radiation in arid and semi-arid regions of S. Liu et al./Scientia Iranica, Transactions A: Civil Engineering 27 (2020) 2247{2257 2257 China", Journal of Atmospheric Chemistry, 67(2{3), pp. 141{155 (2010). 18. Ministry of Transport of the People's Republic of China, Technical Speci_cation for Construction of Highway Asphalt Pavement, Beijing (2004). 19. Lamontagne, J., Dumas, P., Mouillet, V., et al. Comparison by Fourier transform infrared (FTIR) spectroscopy of di_erent ageing techniques: application to road bitumens", Fuel, 80(4), pp. 483{488 (2001). 20. Ministry of Transport of the People's Republic of China, Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering, Beijing (2011).