Composition and Viscoelasticity of Asphalt Modified with Crumb Rubber Pre-desulfurized by Waste Cooking Oil

被引：0
|
作者：
Dong R.-K. [1 ,2 ]
Liang W.-B. [1 ,2 ]
Tang N.-P. [1 ,2 ]
Zhao M.-Z. [1 ,2 ]
机构：
[1] School of Civil Engineering, Chongqing University, Chongqing
[2] Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing
来源：
Zhongguo Gonglu Xuebao/China Journal of Highway and Transport | 2019年 / 32卷 / 04期
关键词：
Component analysis; Multiple stress creep and recovery; Pre-desulfurization crumb rubber modified asphalt; Road engineering; Viscoelasticity;
D O I：
10.19721/j.cnki.1001-7372.2019.04.020
中图分类号：
学科分类号：
摘要：
To investigate the effect of waste rubber oil (WRO), which is crumb rubber pre-desulfurized with waste cooking oil, on the composition and viscoelasticity of modified asphalt, 15 groups of specimens of WRO modified asphalt (WROMA) were prepared with different dosages, processing temperatures and processing times. The composition and viscoelasticity of WROMA were evaluated using an asphalt fraction test, a DSR time sweep test, and multiple stress creep and recovery test. The results indicate that in terms of composition, the rubber hydrocarbon in WRO mainly supplements the asphaltenes fraction; most of the oil, the saturates fraction; and a little amount of oil, the aromatics fraction. The processing conditions do not have a considerable effect on the saturates or resins fractions in the WROMA, while they have a strong linear correlation with the aromatics and asphaltenes fractions. Moreover, the aromatics and asphaltenes fractions are mainly affected by the contents of WRO. In terms of viscoelasticity, with the increase in WRO content, the high temperature viscous component of WROMA decreases and elasticity increases. To ensure that the WROMA acquires adequate high-temperature elasticity, it is recommended to produce modified asphalt with 30% WRO at a temperature of 160℃ for a processing time of 2 h. Based on the correlation analysis between the composition and viscoelastic parameters, it can be concluded that aromatics fraction accounts for the viscous behavior of WROMA, and asphaltenes fraction and rubber hydrocarbon in WRO contribute to the high-temperature elasticity of WROMA. © 2019, Editorial Department of China Journal of Highway and Transport. All right reserved.
引用
收藏
页码：226 / 234
页数：8
相关论文
共 29 条
  • [1] Dong R.-K., Zheng M., Huang W.-D., Et al., Fatigue Performance Comparison of Various Kinds of Asphalt Mixtures with Self-healing Compensation Considered, China Journal of Highway and Transportation, 28, 5, pp. 87-92, (2015)
  • [2] Huang W.-D., Li Y.-W., Du Q.-L., Et al., The Research and Application on Asphalt Rubber and Asphalt Rubber Mixture, (2013)
  • [3] Dong R.-K., Qi C.-P., Zheng K.-J., Et al., Test on Low-temperature Performance for High-temperature Pyrolytic Rubber Modified Asphalt, China Journal of Highway and Transport, 30, 10, pp. 32-38, (2017)
  • [4] Wu X., Wang S., Dong R., Lightly Pyrolyzed Tire Rubber Used as Potential Asphalt Alternative, Construction and Building Materials, 112, pp. 623-628, (2016)
  • [5] Ghorai S., Bhunia S., Roy M., Et al., Mechanochemical Devulcanization of Natural Rubber Vulcanizate by Dual Function Disulfide Chemicals, Polymer Degradation and Stability, 129, pp. 34-46, (2016)
  • [6] Liang M., Xin X., Fan W., Et al., Thermo-stability and Aging Performance of Modified Asphalt with Crumb Rubber Activated by Microwave and TOR, Materials & Design, 127, pp. 84-96, (2017)
  • [7] Rasool R.T., Wang S., Zhang Y., Et al., Improving the Aging Resistance of SBS Modified Asphalt with the Addition of Highly Reclaimed Rubber, Construction and Building Materials, 145, pp. 126-134, (2017)
  • [8] Yao C., Zhao S., Wang Y., Et al., Microbial Desulfurization of Waste Latex Rubber with Alicyclobacillus sp, Polymer Degradation and Stability, 98, 9, pp. 1724-1730, (2013)
  • [9] Lin P., Huang W., Tang N., Et al., Performance Characteristics of Terminal Blend Rubberized Asphalt with SBS and Polyphosphoric Acid, Construction and Building Materials, 141, pp. 171-182, (2017)
  • [10] Sajjadi B., Raman A.A.A., Arandiyan H., A Comprehensive Review on Properties of Edible and Non-edible Vegetable Oil-based Biodiesel: Composition, Specifications and Prediction Models, Renewable and Sustainable Energy Reviews, 63, pp. 62-92, (2016)
123