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Title: Quantitative characterisation of asphalt's composition-microstructure relationship based on atomic force microscopy, differential scanning calorimetry, and Fourier transform infrared spectroscopy tests
Authors: Gong, MH
Yang, J
Wei, JM
Pauli, T
Yu, HY 
Keywords: Asphalt
Atomic force microscopy
Bee structure
Chemical composition
Issue Date: 2017
Publisher: Routledge, Taylor & Francis Group
Source: Road materials and pavement design, 2017, v. 18, no. 3, p. 507-532 How to cite?
Journal: Road materials and pavement design 
Abstract: A challenge in asphalt research is to develop relationships between composition, microstructure, mechanical response, and pavement performance, as these properties relate to asphalt crude source. To this end, the present paper reports on a study of the interrelationships between chemical/compositional and surface microstructural properties of four asphalts and their fractions utilising atomic force microscopy, differential scanning calorimetry, and Fourier transform infrared spectroscopy. The influences of asphalt fraction chemistry on bee structures, specifically relationships between bee structures and waxes were investigated. Results demonstrate that determination of wax content is method dependent. Crystallising materials detected by differential scanning calorimetry may participate in the formation of bee structure. Regression results suggest that aromatic fraction has some influences on surface microstructures. This paper explores the effect of asphalt chemical composition on formation of bee structure which provides a basis for establishing relationship between microstructure and macro properties (e.g. healing and cracking).
ISSN: 1468-0629
EISSN: 2164-7402
DOI: 10.1080/14680629.2016.1181560
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