Epithermal ageing mechanism of gussasphalt

Zengheng Hao; Yiqiu Tan; Xiaoning Zhang; Feng Zhang

doi:10.1007/s11595-009-3466-5

Journal of Wuhan University of Technology Materials Science Edition ›› 2009, Vol. 24 ›› Issue (3) : 466 -470. DOI: 10.1007/s11595-009-3466-5

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Epithermal ageing mechanism of gussasphalt

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Abstract

The normal asphalt index test, DSR test, FTIR and the GPC distribution analysis of molecular weight on the extraction and recovery of asphalt of the gussasphalt, SMA extraction and recovery of asphalt and the rotary-thin-film-oven-aged asphalt above 240 °C were introduced. The results indicate the rutting factor and fatigue factor of the extraction and recovery of asphalt of the gussasphalt are greatly improved, and an obvious absorption peak of carbonyl and a further decrease of the SBS molecular weight of the gussasphalt are found.

Keywords

gussasphalt / epithermal ageing / rheolagical performance / fourier transforms infrared spectroscopy / gel permeation chromatography

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Zengheng Hao, Yiqiu Tan, Xiaoning Zhang, Feng Zhang. Epithermal ageing mechanism of gussasphalt. Journal of Wuhan University of Technology Materials Science Edition, 2009, 24(3): 466-470 DOI:10.1007/s11595-009-3466-5

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