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Abstract
This paper describes a quick approach for quantification of the effects of a chemical warm named Rediset, and its interactions with temperature and aging on the rheological properties of asphalt binders using Response Surface Method. The central composite method was applied to design experimental programs for three test temperature conditions, namely; very high temperature (120–180 °C), high temperature (46–82 °C), and intermediate temperature (19–31 °C). Rotational viscosity, G*/sin δ and G*sin δ were selected as parameters to assess the effects of the chemical warm additive on the rheological properties of asphalt binders for different aging conditions. Evaluation of the effects of this additive on the transformed value of G*/sin δ at high temperatures indicates that additive content has significant effect on Ln(G*/sin δ). The results for intermediate temperatures show that this additive has a positive effect on G*sin δ of asphalt binders.
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Notes on contributors
Meor Othman Hamzah
Meor Othman HAMZAH. He is a Professor at the School of Civil Engineering, Universiti Sains Malaysia. He has been involved in several research projects and is the author of many papers in international journals and conferences and reviewer of international journals. His expertise is mainly in the field of highway materials focusing on asphalt technology.
Babak Golchin
Babak GOLCHIN. He is an Assistant Professor in Islamic Azad University, Ahar, Iran. He obtained his PhD and master degree from the Universiti Sains Malaysia, Malaysia and Iran University of Science and Technology, Iran, respectively. His research interests include asphalt technology and pavement management system.
David Woodward
David WOODWARD. He is a Reader in Infrastructure Engineering at the University of Ulster, Northern Ireland. For the last 14 years,he has been Head of the Highway Engineering Research Group that now forms a sub-group within the Centre for Sustainable Technologies. He got his PhD in Highway Engineering from the University of Ulster, Ireland in 1995. His research interests focuses on the aggregate performance, additives and modifiers for bituminous materials, interfacial stress, recycled materials, road noise, skid resistance and sustainable technologies.