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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2021, Vol. 40 ›› Issue (08): 120-125.DOI: 10.3969-j.issn.1674-0696.2021.08.16

• 交通基础设施工程 • 上一篇    下一篇

植物油再生SBS改性沥青混合料路用性能研究

侯 芸1，2，3，董元帅1，2，3，李志豪4，胡森4，曹雪娟5   

  1. (1. 中国公路工程咨询集团有限公司，北京 100089； 2. 中国交建公路路面养护技术研发中心，北京 100083； 3. 公路建设与养护技术、材料及装备交通运输行业研发中心 ，北京 100083； 4. 重庆交通大学 土木工程学院，重庆 400074； 5. 重庆交通大学 材料科学与工程学院，重庆 400074)
  • 收稿日期:2019-11-15 修回日期:2019-11-15 出版日期:2021-08-20 发布日期:2021-08-25
  • 作者简介:侯 芸(1975—)，男，内蒙古呼和浩特人，教授级高级工程师，博士，主要从事路面养护技术与材料方面的研究。E-mail:1377692489@qq.com
  • 基金资助:
    重庆市教育委员会科学技术项目（KJZD-M201900701）

Road Performance of SBS Modified Asphalt Mixture Regenerated from Vegetable Oil

HOU Yun1, 2, 3, DONG Yuanshuai1, 2, 3, LI Zhihao4, HU Sen4, CAO Xuejuan5   

  1. (1.China Highway Engineering Consultant Group Co., Ltd., Beijing 100089, China; 2. China Communications Construction Research and Development Center on Pavement Maintenance Technology, Beijing 100083, China; 3. Highway Construction and Maintenance Technology, Materials and Equipment Transportation Industry R & D Center, Beijing 100083, China; 4.School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 5. School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China)
  • Received:2019-11-15 Revised:2019-11-15 Online:2021-08-20 Published:2021-08-25

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摘要： 旧沥青混合料（RAP）的再生利用具有较高的经济价值和环保效益，当RAP掺量较高或旧沥青老化严重时，需要掺加沥青再生剂才能保证再生沥青的路用性能。研究新鲜植物油、煎炸植物油、植物柴油3种植物油再生剂和一种传统矿物油再生剂对老化SBS改性沥青混合料路用性能的影响。RAP选择30%和50%两种掺量，在各自油石比最佳的情况下，分别以4种再生剂的最佳掺量对其进行再生，最后对其再生沥青混合料进行车辙试验、小梁弯曲试验和冻融劈裂试验。基于文中试验条件下，当RAP掺量为30%，油石比为4.8%时，以4.5%的新鲜植物油作为再生剂对老化SBS改性沥青混合料再生效果最佳。

关键词: 道路工程；植物油；再生剂；RAP；路用性能

Abstract: The recycling of old asphalt mixture (RAP) has high economic value and environmental protection benefits. When the content of RAP is high or the aging of old asphalt is serious, it is necessary to add asphalt regeneration agent to ensure the road performance of recycled asphalt. The effects of three kinds of vegetable oil regeneration agents, such as fresh vegetable oil, fried vegetable oil and vegetable diesel oil as well as a traditional mineral oil regeneration agent on the road performance of the aged SBS modified asphalt mixture were studied. Two kinds of the content such as 30% and 50% were selected by RAP, and the optimum content of four kinds of regeneration agents was used to regenerate RAP under the condition of the best ratio of oil to stone, respectively. Finally, the rutting test, trabecular bending test and freeze-thaw splitting test of recycled asphalt mixture were carried out on the recycled asphalt mixture. Based on the proposed experimental conditions, when the content of RAP is 30% and the ratio of oil to stone is 4.8%, the regeneration effect of the aged SBS modified asphalt mixture was the best by using 4.5% fresh vegetable oil as regeneration agent.

Key words: highway engineering; vegetable oil; regenerant; RAP; road performance

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