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Ingeniería e Investigación
Print version ISSN 0120-5609
Abstract
REYES ORTIZ, Oscar Javier and CAMACHO TAUTA, Javier Fernando. Effect of ultraviolet radiation on an asphalt mixtures mechanical and dynamic properties. Ing. Investig. [online]. 2008, vol.28, n.3, pp.22-27. ISSN 0120-5609.
This researchs main goal was to determine UV radiations effects on a dense asphalt mixtures mechanical and dynamic properties. Individual material components were characterised and optimum asphalt content was obtained using Marshalls methodology. Dynamic modulus, rutting and fatigue tests were carried out using specimens previously subjected to UV radiation at different exposure times by using an aging chamber. It is worth stressing that greater UV exposure led to shorter mixture life cycles. The dynamic module increased between 90% and 132% and permanent deformation decreased by 57%, making it become a more fragile structure.
Keywords : fatigue law; dynamic module; rutting; UV radiation; asphalt mixture.