脱油沥青复合改性沥青混合料性能评价研究

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英文篇名：Evaluation on performance of DOA compound modified asphalt mixture 作者：李璐 ; 刘攀 ; 郝增恒 ; 盛兴跃 ; 张毅 英文作者：Li Lu;Liu Pan;Hao Zengheng;Sheng Xingyue;Zhang Yi;Chongqing Zhixiang Paving Technology Engineering Co.,Ltd.;China Merchants Chongqing Communications Research & Design Institute Co.,Ltd.; 关键词：脱油沥青 ; 复合改性沥青 ; 沥青混合料 ; 路用性能 ; 道路工程 英文关键词：deoiled asphalt(DOA);;compound modified asphalt;;asphalt mixture;;pavement performance;;road engineering 中文刊名：HGXC 英文刊名：New Chemical Materials 机构：重庆市智翔铺道技术工程有限公司;招商局重庆交通科研设计院有限公司; 出版日期：2019-01-15 出版单位：化工新型材料 年：2019 期：v.47;No.556 基金：重庆市社会民生科技创新专项(cstc2015shmszx1126);; 重庆市科技创新领军人才支持计划(CSTCCXLJRC201720) 语种：中文; 页：HGXC201901059 页数：5 CN：01 ISSN：11-2357/TQ 分类号：253-257

摘要

利用脱油沥青(DOA)生产道路沥青是行之有效的技术方案。考察了制备方式对DOA/苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)复合改性沥青混合料性能的影响,评价了复合改性沥青混合料的高温稳定性、低温抗裂性、水稳定性及疲劳性能,并分析了其经济性。结果表明,掺入DOA能提高沥青混合料的高温性能,但对混合料的低温抗裂性、疲劳性能和水稳定性有消极影响;DOA改性沥青与SBS复合后,混合料的低温性能、水稳定性及疲劳性能均有所改善,高温性能更为优异。综合考虑混合料的路用性能,确定合理的DOA掺量为20%(质量分数)。DOA/SBS复合改性沥青不但保证了路用性能要求,而且还能有效地降低成本,经济效益显著,可以应用于公路工程。
        The production of modified asphalt by DOA and SBS compounding with road asphalt is an effective way that can solve DOA applications reasonably.The effect of preparation method on performance of DOA/SBS compound modified asphalt mixture was investigated.Its high temperature stability,low temperature crack resistance,water stability and fatigue performance were evaluated,and the economy was analyzed.The results showed that DOA could improve the high temperature performance of mixture,but it had a negative effect on low temperature crack resistance,fatigue performance and water stability.When DOA modified asphalt mixing with SBS,its low temperature performance and fatigue performance were improved,especially high temperature performance.Considering the pavement performance of asphalt mixture,the reasonable DOA dosage was 20%.DOA/SBS asphalt not only met the requirements of pavement performance,but also had significant economic benefits.Therefore,it can be applied to road engineering.

引文

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