中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2017, Vol. 36 ›› Issue (10): 31-36.DOI: 10.3969/j.issn.1674-0696.2017.10.06

• 道路与铁道工程 • 上一篇    下一篇

纳米CaCO3/TiO2/SBR复合改性沥青性能与机理研究

陈正伟1,赵士峰2,张洪亮1,王倩1   

  1. (1.长安大学 特殊地区公路工程教育部重点实验室 陕西 西安710064; 2.长春市市政工程设计研究院,吉林 长春 130033)
  • 收稿日期:2016-06-22 修回日期:2016-08-12 出版日期:2017-10-27 发布日期:2017-10-27
  • 作者简介:陈正伟(1975—),男,浙江浦江人,博士,主要从事路面材料与结构方面的研究工作。E-mail:491923501@qq.com。 通信作者:张洪亮(1974—),男,山东枣庄人,博士,教授,博士生导师,主要从事路面材料与结构方面的研究工作。E-mail:zhliang0105@163.com。
  • 基金资助:
    国家自然科学基金项目(51208043)

Performance and Mechanism of Composite Asphalt Modified by Nano-CaCO3/TiO2/SBR

CHEN Zhengwei1,ZHAO Shifeng2,ZHANG Hongliang1,WANG Qian1   

  1. (1.Key Laboratory for Special Area Highway Engineering of Ministry of Education of China, Chang’an University,Xi’an 710064 Shaanxi,P.R.China; 2.Changchun Municipal Engineering Design and Research Institute,Changchun 130033,Jilin,P.R.China)
  • Received:2016-06-22 Revised:2016-08-12 Online:2017-10-27 Published:2017-10-27

摘要: 采用硅烷偶联剂KH560对纳米CaCO3和纳米TiO2表面进行有机化改性,以改善有机物与无机物之间的相容性。采用搅拌与高速剪切的方法制备纳米CaCO3/ TiO2 /SBR复合改性沥青,采用正交实验,通过常规性能试验优选出最佳组合方案。并研究复合改性沥青常规、非常规性能。结果表明:复合改性沥青的最佳组合方案为,5% CaCO3+1% TiO2+3% SBR,该种复合改性沥青与基质沥青相比具有很强的高温抗车辙能力,在温度达到88 ℃时仍能满足规范的要求,低温性能有明显提高,抗老化性能也有显著提高。可以满足夏热冬寒地区的要求。

关键词: 道路工程, 纳米CaCO3, 纳米TiO2, SBR, 复合改性沥青, 性能

Abstract: In order to improve the compatibility between organic material and inorganic material,nano-CaCO3 and nano-TiO2was modified with silence coupling agent KH560.The nano-CaCO3/TiO2/SBR composite modified asphalt was prepared by high-speed shearing and mixing.Through orthogonal experiment,the best combination scheme was selected out by routine performance tests; the conventional and unconventional properties of composite modified asphalt were also studied.The results show that the best combination scheme of the composite modified asphalt is 5% CaCO3+1% TiO2+3% SBR.Compared with the matrix asphalt,the proposed composite modified asphalt has strong resistance to rutting at high temperature.When the temperature is 88 ℃,its performances can still satisfy the requirements of the standard.Its low temperature performances and anti-aging performances are improved obviously.The proposed composite modified asphalt can be used in the area where the temperature is high in summer and low in winter.

Key words: highway engineering, nano-CaCO3, nano-TiO2, SBR, composite modified asphalt, performance

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