An Experimental Study of the Impact of Aging on Gilsonite and Trinidad Epuré Modified Asphalt Binders Properties

Mieczysław Słowik, Marcin Bilski


The tests and analyses presented in the paper are related to the 20/30, 35/50 and 50/70 penetration grade road bitumens as well as the asphalt binders obtained through modification of the 35/50 and 50/70 bitumens. The latter were modified by adding to it 3%, 5% and 7% of the Gilsonite natural asphalt and 15%, 25% and 35% of the Trinidad Epuré Z 0/8 natural asphalt. The aim of the study was to assess the changes in the functional and rheological properties of the road bitumens that were modified by adding to them the Gilsonite and Trinidad Epuré natural asphalts. The modified asphalt binders were subjected to the laboratory simulated short-term and long-term aging, where two methods, designed as part of the Strategic Highway Research Program, were used, i.e. the Rolling Thin Film Oven Test and the Pressure Aging Vessel, respectively. The study of the asphalt binders both those that were subjected to aging and those unaged includes thermal susceptibility (the Penetration Index) and resistance to cracking at low temperatures by tests carried out using the Bending Beam Rheometer. The analysis of the results revealed that the unfavourable impact of the aging process on the asphalt binder properties is limited if a suitable amount of the natural asphalt is used as a modifier.


aging; low-temperature properties; modified binders; natural asphalt; temperature susceptibility; thermal cracking.

Full Text:



Aflaki, S.; Hajikarimi, P.; Fini, E.; Zada, B. 2014. Comparing Effects of Biobinder with Other Asphalt Modifiers on Low-Temperature Characteristics of Asphalt, Journal of Materials in Civil Engineering 26(3): 429–439.

Al-Mansob, R. A.; Ismail, A.; Alduri, A. N.; Azhari, C. H.; Karim, M. R.; Yusoff, N. I. M. 2014. Physical and Rheological Properties of Epoxidized Natural Rubber Modified Bitumens, Con- struction and Building Materials 63: 242–248.

Ameri, M.; Mansourian, A.; Ashani, S. S.; Yadollahi, G. 2011. Technical Study on the Iranian Gilsonite as an Additive for Modification of Asphalt Binders Used in Pavement, Construction and Building Materials 25(3): 1379–1387.

Ameri, M.; Mansourian, A.; Sheikhmotevali, A. H. 2012. Investigating Effects of Ethylene Vinyl Acetate and Gilsonite Modifiers Upon Performance of Base Bitumen Using Superpave Tests Methodology, Construction and Building Materials 36: 1001–1007.

Babagoli, R.; Hasaninia, M.; Namazi, N. M. 2015. Laboratory Evaluation of the Effect of Gilsonite on the Performance of Stone Matrix Asphalt Mixtures, Road Materials and Pavement Design 16(4): 889–906.

Boden, T.; Tripp, B. T. 2012. Gilsonite Veins of the Uinta Basin. Utah. Salt Lake City: Utah Geological Survey. 50 p.

Cholewińska, M.; Iwański, M. 2011. Modification of Petroleum Road Bitumen 50/70 with natural asphalt Gilsonite, Structure and Environment 3(2): 5–10.

Danowski, M. 2009. Nawierzchnie z dodatkiem asfaltu naturalnego Trynidad [Pavements with Addition of the Trinidad Natural Asphalt], Nawierzchnie asfaltowe 2: 7–13, in Polish.

Feng, M.; Zhen, F.; Lilong, W. 2014. Asphalt-Aggregate Adhesion Work of Natural Asphalt Modified Asphalt, International Journal of Pavement Research and Technology 7(6): 456–460.

Haritonovs, V. 2015. Evaluation of Polyaminoamide as a Surfactant Additive in Hot Mix Asphalt, Baltic Journal of Road and Bridge Engineering 10(2): 112–117.

Liao, M. C.; Chen, J. S.; Airey, G. D.; Wang, S. J. 2014. Rheological Behavior of Bitumen Mixed with Trinidad Lake Asphalt, Construction and Building Materials 66: 361–367.

Nciri, N.; Song, S.; Kim, N.; Cho, N. 2014. Chemical Characterization of Gilsonite Bitumen, Journal of Petroleum & Environmental Biotechnology 5(5): 1−10.

Nivitha, M. R.; Prasad, E.; Krishnan, J. M. 2015. Ageing in Modified Bitumen Using FTIR Spectroscopy, International Journal of Pavement Engineering 17(7): 565–577.

Słowik, M. 2010. Analiza Niepewności Pomiarowych Przy Ocenie Właściwości Asfaltów Drogowych [Analysis of Measurement Uncertainty in Assessment of Properties of Road Bitumens], Poznan University of Technology, Archives of Institute of Civil Engineering 7: 129–144, in Polish.

Słowik, M.; Grabowski, W.; Bilski, M. 2012. Road Bitumen Modified with Natural Asphalt Trinidad Epuré and Gilsonite Addition, in the 5th Eurasphalt & Eurobitume Congress. 13–15 June, 2012, Istanbul, Turkey.

Wang, C.; Wang, P.; Li, Y.; Zhao, Y. 2015a. Laboratory Investigation of Dynamic Rheological Properties of Tourmaline Modified Bitumen, Construction and Building Materials 80(1): 195–199.

Wang, Y.; Sun, L.; Qin, Y. 2015b. Aging Mechanism of SBS Modified Asphalt Based on Chemical Reaction Kinetics, Construction and Building Materials 91: 47–56.

Widyatmoko, I.; Elliott, R. 2008. Characteristics of Elastomeric and Plastomeric Binders in Contact with Natural Asphalts, Construction and Building Materials 22(3): 239–249.

Xiao, F.; Amirkhanian, S. N.; Juang C. H.; Hu, S.; Shen, J. 2012. Model Developments of Long-Term Aged Asphalt Binders, Construction and Building Materials 37: 248–256.

Yilmaz, M.; Çeloglu, M. E. 2013. Effects of SBS and Different Natural Asphalts on the Properties of Bituminous Binders and Mixtures, Construction and Building Materials 44: 533–540.

Yilmaz, M.; Kök, B. V.; Kuloğlu, N. 2013. Investigation of Mechanical Properties of Short- and Long-Term Aged Asphaltite Modified Asphalt Mixtures, Journal of Materials in Civil Engineering 25(5): 563–572.

Yilmaz, M.; Kök, B. V.; Yamaç, Ö. E. 2015. Determination of Rheological Properties of Polymer and Natural Asphalts Modified Binders After Storage Stability Test, Journal of Engineering and Natural Sciences 33: 157–165.

DOI: 10.3846/bjrbe.2017.09


  • There are currently no refbacks.

Copyright (c) 2017 Vilnius Gediminas Technical University (VGTU) Press Technika