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《材料导报》期刊社  2017, Vol. 31 Issue (24): 79-85    https://doi.org/10.11896/j.issn.1005-023X.2017.024.016
  第一届先进胶凝材料研究与应用学术会议 |
老化SBS改性沥青二次改性再生工艺及机理研究
姚晓光1, 2,张万磊2, 张争奇3,栗培龙3
1 滁州学院地理信息与旅游学院,滁州 239000;
2 江苏中路工程技术研究院,南京 211800;
3 长安大学特殊地区公路工程教育部重点实验室,西安 710064
Re-modification Recycling Process and Mechanism of Aged SBS Modified Asphalt
YAO Xiaoguang1, 2, ZHANG Wanlei2, ZHANG Zhengqi3, LI Peilong3
1 School of Geographic Information and Tourism, Chuzhou University, Chuzhou 239000;
2 Jiangsu Sinoroad Engineering Research Institute, Nanjing 211800;
3 Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an University,Xi’an 710064
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摘要 为研究老化SBS改性沥青的二次改性再生效果,比较不同工艺对再生效果的影响,首先通过常规试验、SHRP试验选择恰当的SBS改性沥青老化模拟方式,然后对添加SBS改性剂、新沥青进行再生的3种工艺展开研究,并借助红外光谱试验分析不同掺加顺序对老化SBS改性沥青再生效果的影响,确定了改性剂及新、旧沥青的最佳比例和最佳工艺。结果表明:采用RTFOT试验进行老化模拟更加方便、科学,RTFOT试验5 h获得的改性沥青指标与服务年龄为7年的SBS改性沥青一致;SBS改性剂、新沥青添加顺序与老化沥青再生效果关系密切,先将SBS改性剂和新沥青混合制备改性沥青,再将改性沥青与老化沥青混合的工艺可使再生沥青性能最佳,其中SBS最佳掺量为4%,新、旧沥青质量比为2。
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姚晓光
张万磊
张争奇
栗培龙
关键词:  道路工程  SBS改性沥青  二次改性再生  最佳工艺  最佳掺量    
Abstract: To study the re-modified recycling effect of SBS modified asphalt and compare the influence of different recycling process, the SBS modified asphalt aging simulation method was selected by the routine test and the SHRP test firstly in this paper. Then three kinds of processes were researched about recycling method that adding SBS modifier and new asphalt. On the basis of infrared spectrum test, the influence of different processes on recycling effect of aging SBS modified asphalt were analyzed. Finally, the optimal ratio and best process were determined, which including the content of SBS modifier, the ratio of new to old asphalt. The results showed that using RTFOT experiment in aging simulation is more convenient and scientific. The indicators of SBS modified asphalt after five hours RTFOT experiment accords with the asphalts applied for seven years. And the addition order between the SBS modifier and the new asphalt is closely related to the recycling effect of aging asphalt. The best process is that preparing modified asphalt with SBS modifier and new asphalt firstly, then mixing the modified asphalt and aging asphalt, with 4% SBS modifier and the ratio of new and old asphalt of 2.
Key words:  road engineering    SBS modified asphalt    re-modified recycling    best process    optimal content
出版日期:  2017-12-25      发布日期:  2018-05-08
ZTFLH:  U416  
基金资助: 安徽省教育厅自然科学研究项目(KJ2016B02);国家自然科学基金(51008031);交通运输部应用基础研究项目(2014 319 812 151)
作者简介:  姚晓光:男,1991年生, 硕士,助教,主要从事高性能沥青路面材料及道路养护技术研究 E-mail:yxg19910815@126.com
引用本文:    
姚晓光,张万磊, 张争奇,栗培龙. 老化SBS改性沥青二次改性再生工艺及机理研究[J]. 《材料导报》期刊社, 2017, 31(24): 79-85.
YAO Xiaoguang, ZHANG Wanlei, ZHANG Zhengqi, LI Peilong. Re-modification Recycling Process and Mechanism of Aged SBS Modified Asphalt. Materials Reports, 2017, 31(24): 79-85.
链接本文:  
https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.024.016  或          https://www.mater-rep.com/CN/Y2017/V31/I24/79
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