Chapter
Apr 26, 2012
The Influence of Mineral Fillers on Mastic Aging Properties
Publication: ICCTP 2011: Towards Sustainable Transportation Systems
Abstract
Previous studies have shown that, except for absorbing oily components from bitumen, the petrographic nature of aggregates may have added effects on the aging of bitumen through oxidation catalysis and chemical adsorption. In addition, it is widely recognized that the fillers and fine fractions of aggregates play a dominant role in these added physical-chemical interactions between bitumen binder and aggregate as they contribute the majority of surface area. This paper investigates the influences of different fillers (acidic and basic) on the aging properties of mastics and their recovered binders. The Dynamic Shear Rheometer (DSR) tests and Fourier Transform Infrared Spectroscopy (FTIR) tests were applied to the mastics and bitumen binders at different stages of the Thin Film Oven Test (TFOT). The study results show that the acidic and basic fillers affect bitumen aging in differing ways due to their different mineral textures.
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Published In
ICCTP 2011: Towards Sustainable Transportation Systems
Pages: 3450 - 3461
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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College of Civil and Transportation Engineering, Hohai University, Nanjing, China, 210098.E-mail: [email protected]
Nottingham Transportation Engineering Centre, University Park, The University of Nottingham, Nottingham, UK, NG7 2RD.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.
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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.