Analysis of Activation Energy and MSCR for Oxidized Asphalts and their impact on the Rutting of Pavements

Ana-Sofia Figueroa-Infante

Abstract


There have been numerous studies focused on the effect of water on asphalt mixtures, the mineralogy of the aggregates, mastic, and voids. In this research, the effect of water on binder is evaluated in the context of chemical changes, and how such changes impact the material rheological response of asphalt mixtures. This phenomenon has impact on the durability of pavement insomuch as water affects our roads due to prolonged periods of rain and high relative humidity; a typical characteristic of tropical countries. The procedure applied in this research was to submerge 2 mm thick sheets of asphalt in water (of constant controlled properties) for twenty-one (21) months.  During that time, the progressive changes in chemical properties, physical properties, and performance of the asphalt were tracked.  The results presented in this article are focused on the analysis of the asphalts’ activation energy (and the generated change during the period of submersion) in relation to its response to the Multiple Stress Creep and Recovery (MSCR) test: one of the rheological tests that effectively represents the asphalts’ behavior under different stress and strain levels.


Keywords


Flexible Pavement; Oxidized Asphalt; Activation Energy; MSCR; Moisture Damage; Rutting.

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References


A. Figueroa, R. Velasquez, F. Reyes, and H. Bahia, “Effect of Water Conditioning for Extended Periods on the Properties of Asphalt Binders,” Transp. Res. Rec. J. Transp. Res. Board, no. 2372, pp. 34–45, 2013.

K. Kanitpong and H. Bahia, “Relating adhesion and cohesion of asphalts to the effect of moisture on laboratory performance of asphalt mixtures,” Transp. Res. Rec. J. Transp. Res. Board, no. 1901, pp. 33–43, 2005.

D. S. Coe and Z. H. Cui, “Determinación de la energ{’i}a de activación de flujo en ligantes asfálticos,” in XII Congreso Ibero-Latinoamericano del Asfalto CILA, Quito (Ecuador), Disponible en www. technopave. com/publications/CILA-2003, 2003.

H. Bahia, N. Tabatabaee, C. Clopotel, and A. Golalipour, “Evaluation of the MSCR test for modified binder specification,” in The Fifty-sixth Annual Conference of the Canadian Technical Asphalt AssociationCanadian Technical Asphalt Association, 2011.

M. D. I. Domingos and A. L. Faxina, “Susceptibility of asphalt binders to rutting: literature review,” J. Mater. Civ. Eng., vol. 28, no. 2, p. 4015134, 2015.

R. Stevens, J. Stempihar, B. S. Underwood, and P. Pal, “Evaluation of Multiple Stress Creep and Recovery (MSCR) Data for Arizona,” Int. J. Pavement Res. Technol., vol. 8, no. 5, pp. 337–345, 2015.

J. Bukowski, J. Youtcheff, and T. Harman, “THE Multiple Stress Creep Recovery (MSCR) Procedure,” Off. Pavement Technol. - FHWA‐HIF‐11‐038, no. April, pp. 1–9, 2011.


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