吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (6): 1861-1867.doi: 10.13229/j.cnki.jdxbgxb201706026

• Orginal Article • Previous Articles     Next Articles

Compressive behavior and mechanism of volcanic ash-SBS, rubber powder-SBS and SBS modified asphalt

LIU Yao-hui1, CHEN Qiao-xu1, SONG Yu-lai1, SHEN Yan-dong2   

  1. 1.College of Materials Science and Engineering, Jilin University, Changchun 130022 China;
    2.College of Road and Bridge Engineering,Jilin Transportation Vocational College, Changchun 130012 China
  • Received:2016-10-28 Online:2017-11-20 Published:2017-11-20

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Abstract: Compressive behavior of volcanic ash-Styrene-Butadiene-Styrene (SBS), rubber powder-SBS and SBS modified asphalt mixtures at different temperatures were investigated. Then the deformation mechanism in the compression process of the three kinds of asphalts were revealed. The compressive properties of the asphalt mixture samples were tested at temperatures of 40, 25, 20, 0, -20 and -40 ℃ by static compressive tests. Experiment results show that the compressive properties of the asphalts were significantly promoted above the temperature of 20 ℃ by adding the volcanic ash and the rubber into the SBS modified asphalt mixture, respectively, the compressive strength was increased by 30% by adding volcanic ash. SBS plays a dominant role at the temperatures of 0 ℃ and -20 ℃ in the asphalts, and the compressive strength of SBS modified asphalt mixture is higher than that of the ash-SBS and rubber powder-SBS modified asphalt mixtures. The volcanic ash improves the shrinkage performance of the asphalt mortar when the temperature descends to -40 ℃, and thus the compressive property of the volcanic ash-SBS modified asphalt mixture is better than that of the others.

Key words: compound materials, road project, asphalt, volcanic ash, rubber powder, SBS, compression behavior, deformation mechanism

CLC Number: 

  • U416.217
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