Evaluation of mechanical parameters of an asphalt mixture under the environmental conditions of Bogotá D.C.

Authors

  • Hugo Alexander Rondón Quintana Universidad Distrital Francisco José de Caldas (Colombia)
  • Fredy Alberto Reyes Lizcano Pontificia Universidad Javeriana (Colombia)

DOI:

https://doi.org/10.4067/S0718-50732012000100004

Keywords:

Resilient modulus, fatigue law, aging, hot asphalt mixture, asphalt cement

Abstract

The present paper introduces the evolution of resilient modulus, permanent strain and fatigue life of an asphaltic concrete mixture exposed under weather conditions in Bogota D.C. (Colombia) during 47-48 months. Mixtures were elaborated by using two asphaltic cements (CA) made in Colombia: CA 80100 and CA 60-70. Mixtures generally tend to increase their stiffness values after an exposure period, mainly due to hardening and ageing processes undergone by asphaltic binder.  A stiffness gain leads to increase endurance against rutting phenomenon and fatigue life of the analyzed mixture employed to lay thick asphaltic layers on the pavement. Based on the resilient modulus evolution due to exposure under environmental conditions, an equation is proposed to approximately predict the evolution of fatigue life endured by a mixture.

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Published

2020-06-30

How to Cite

Rondón Quintana, H. A., & Reyes Lizcano, F. A. (2020). Evaluation of mechanical parameters of an asphalt mixture under the environmental conditions of Bogotá D.C. Revista Ingeniería De Construcción, 27(1), 57–74. https://doi.org/10.4067/S0718-50732012000100004

Issue

Vol. 27 No. 1 (2012)

Section

Original Research

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