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

• 论文 • 上一篇    下一篇

火山灰-SBS、胶粉-SBS和SBS改性沥青压缩变形行为及机理

刘耀辉1, 陈乔旭1, 宋雨来1, 沈艳东2   

  1. 1.吉林大学 材料科学与工程学院,长春130022;
    2.吉林交通职业学院 道桥工程学院,长春130012
  • 收稿日期:2016-10-28 出版日期:2017-11-20 发布日期:2017-11-20
  • 通讯作者: 宋雨来(1974-),男,副教授,博士.研究方向:金属腐蚀,堆焊修复.E-mail:songyulai2005@163.com
  • 作者简介:刘耀辉(1955-),男,教授,博士生导师.研究方向:金属基复合材料.E-mail:lyh@jlu.edu.cn
  • 基金资助:
    吉林省交通运输科技计划科研项目(2012-4-1-10)

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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摘要： 对火山灰-SBS(苯乙烯丁二烯苯乙烯嵌段共聚物)复合改性沥青混合料,橡胶粉-SBS复合改性沥青混合料和SBS改性沥青混合料在不同温度条件下的压缩变形行为进行了系统研究,揭示了上述3种沥青压缩变形的微观机制。分别在40、25、20、0、-20 和-40 ℃,采用压缩试验测试沥青混合料样品在静压力作用下的力学性能。研究结果表明:在20 ℃以上时,添加火山灰和橡胶粉可以明显提高SBS改性沥青的压缩性能,其中添加火山灰样品的压缩强度提升了30%。在0、-20 ℃时,SBS在提高压缩强度中起主导作用,SBS改性沥青混合料样品的压缩强度则优于复合改性样品,但在-40 ℃时,火山灰颗粒改善了沥青胶浆的收缩性能,显著提高了复合改性沥青混合料的压缩性能。

关键词: 复合材料, 路面工程, 改性沥青, 火山灰, 橡胶粉, 苯乙烯丁二烯乙烯嵌段共聚物, 压缩性能, 变形机制

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

中图分类号: 

  • U416.217
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