Characterizing the aging of asphaltic materials through the evolution of continuous relaxation spectrum. (17th December 2019)

• Record Type: Journal Article
• Authors: Naderi, Koorosh; Nejad, Fereidoon Moghadas; Khodaii, Ali
• Is Part Of: Petroleum science and technology. Volume 37:Number 24(2019)
• Page Start: 2404
• Page End: 2411
• Publication Date: 2019-12-17
• Subjects: aging -- asphaltic materials -- constitutive model -- relaxation spectrum -- viscoelastic properties; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2019.1581815
• Languages: English
• ISSNs: 1091-6466

Abstract

Abstract: Similar to other construction materials, asphaltic materials used for pavements are susceptible to environmental conditions. Subsequently, the environmental factors such as aging should be considered in the design process of flexible pavements. In this study, the possibility of the use of relaxation spectrum for viscoelastic materials to capture the effect of aging has been explored. Different types of asphalt binders and asphalt mixtures were tested and analyzed to ensure the validity of the results. The results indicate that through characterizing the evolution of spectrum using statistical parameters, the effect of aging on physical properties of asphaltic materials can be captured.