Performance Evaluation of BRA Modified Asphalt Mastic Based on Analysis of Microstructure and Rheological Mechanics Property

Long Wen; Xiao Jiang Wang; Hao Liu; Hao Xiang Wu; Bao Lin Cui; Xiao Yi Cui

doi:10.4028/www.scientific.net/AMR.243-249.4119

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249Performance Evaluation of BRA Modified Asphalt...

Performance Evaluation of BRA Modified Asphalt Mastic Based on Analysis of Microstructure and Rheological Mechanics Property

Abstract:

Buton rock asphalt (BRA) is possessed of both performance and economic advantages. In order to reveal the modification mechanism, X-ray diffraction experiment (XRD), X-ray fluorescence spectrum analysis and environmental scanning electron microscopy experiment (ESEM) are used to study on microstructure of BRA in this paper. It demonstrates that BRA can extremely adsorb free bitumen due to abundant microscopic pores, which consists of 70~80 percent Buton rock (BR) minerals and 20~30 percent pure rock asphalt (RA). RA with high viscosity is strongly adsorbed internal and outer of the surface of BR, which has high alkaline pH, high crystallization and strong surface activity. Then a special microstructure named “RA~BR” blend with stable property and strong spalling-resistance capability develops. Meanwhile, dynamic stability rheology test (DSR) is employed to study on the rheological mechanics property of BRA modified asphalt mastic. The high temperature performance grade (PG) level of BRA modified asphalt mastic with different mixing content is determined. The reasonable mixing content of BRA in matrix asphalt is 20~30 percent. The research proves that BRA modified asphalt possesses wonderful high temperature stability and has broad prospects for pavement application.

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Periodical:

Advanced Materials Research (Volumes 243-249)

Pages:

4119-4124

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.243-249.4119

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Online since:

May 2011

Authors:

Long Wen, Xiao Jiang Wang, Hao Liu, Hao Xiang Wu, Bao Lin Cui, Xiao Yi Cui

Keywords:

BR~RA Blend, BRA, Microstructure, Modification Mechanism, PG, Rheological Mechanics Property

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References

[1] Malaysia South Perimeter Sdn Bhd: Lawele Buton Mastic Asphalt For Better Road (2005).

Google Scholar

[2] Long Wen: Study on Pavement Performance of Natural Rock Asphalt in Chinese (China 2010).

Google Scholar

[3] Jin'an Shen, Fupu Li and Jing Chen: Technical Specifications for Construction of Highway Asphalt Pavements in Chinese. Communications Press of China, China, Beijing (2004), in press.

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[4] Product Specification for Buton Rock Asphalt for Use Pavement NO.P-2612, Indonesia, (2000).

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[5] Information on http://www.southperimeter.com.

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