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MA Feng, SHA Ai-min. Property analysis of Tahe road asphalt using simultaneous thermog-ravimetry-differential scanning calorimetry-mass spectrometry[J]. Journal of Traffic and Transportation Engineering, 2008, 8(6): 29-33.
Citation: MA Feng, SHA Ai-min. Property analysis of Tahe road asphalt using simultaneous thermog-ravimetry-differential scanning calorimetry-mass spectrometry[J]. Journal of Traffic and Transportation Engineering, 2008, 8(6): 29-33.
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Property analysis of Tahe road asphalt using simultaneous thermog-ravimetry-differential scanning calorimetry-mass spectrometry

  • Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China

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  • Author Bio:

    MA Feng (1978-), male, lecturer, PhD, +86-29-82334826, mafeng@chd.edu.cn

  • Received Date: 2008-06-11
  • Publish Date: 2008-12-25
    Abstract
  • In order to investigate the relation among the microstructure, thermal property and road performance of asphalt, three asphalts refined from Tahe rude oil were studied by using simultaneous thermogravimetry-differential scanning calorimetry-mass spectrometry(TG-DSC-MS), the volatilizations, pyrolysis behaviors and thermal properties of three asphalts were studied from 30 ℃ to 550 ℃, and the relation between asphalt microstructure and road performance was analyzed. Analysis result indicates that asphalt productions in volatilization and thermal decomposition courses are mainly H2O、H2、C2H4(or CO)and ionic groupion(OH) when its mass-to-charge ratio is below 60, there is an obvious trend of weight loss from 240 ℃ in Tahe asphalt's thermogravimetric curve, and the improvement of asphalt performance is related to the increase of pyrolysis caloric and the decrease of residue mass.

     

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