Chapter
Jun 1, 2015
Anti-Oxidants’ Effect on Bitumen Rheology and Mixes’ Mechanical Performance
Authors: Samer Dessouky, Ph.D., M.ASCE [email protected], David Contreras [email protected], Jeremy Sanchez [email protected], and Daewook Park, Ph.D. [email protected]Author Affiliations
Publication: Innovative Materials and Design for Sustainable Transportation Infrastructure
Abstract
The oxidation mechanism in polymer-modified bitumen tends to alter physical and chemical properties. In this study five anti-oxidants are evaluated to examine their potential to mitigate polymer-modified bitumen oxidation. Styrene copolymers and hindered phenol additives are evaluated at low, intermediate and high temperature using aging indices. The styrene copolymers were effective at high temperature while the hindered phenols were effective at low and intermediate temperature. Two blends of both additives were introduced to cover a wide spectrum of temperature. Frequency and temperature sweep testing suggested that the blend improved the recoverable imposed energy at wide range of temperature/frequency. The blends have also improved resistance to rutting and moisture susceptibility for the asphalt mixes.
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Published In
Innovative Materials and Design for Sustainable Transportation Infrastructure
Pages: 8 - 18
Copyright
© 2015 American Society of Civil Engineers.
History
Published online: Jun 1, 2015
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Affiliations
One UTSA Circle, Department of Civil and Environmental Engineering, University of Texas at San Antonio, TX. E-mail: [email protected]
Department of Civil Engineering, Kunsan National University, San 68 Miryong-dong, Kunsan, Chellabuk-do 573-701, South Korea. E-mail: [email protected]
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.