基于SHB型生物沥青微观结构的改性机理研究  

RESEARCH ON THE MODIFICATION MECHANISM BASED ON THE MICROSTRUCTURE OF SHB BIOLOGICAL ASPHALT

作　　者：卢志超 张洋 刘海峰 王心 LU Zhichao;ZHANG Yang;LIU Haifeng;WANG Xin(Jilin Traffic Planning and Design Institute,Changchun 130021 China;Jinlin Provincial Expressway Group Co.,Ltd.,Changchun 130022,China)

机构地区：[1]吉林省交通规划设计院,长春130021 [2]吉林省高速公路集团有限公司,长春130022

出　　处：《低温建筑技术》2023年第12期49-53,共5页Low Temperature Architecture Technology

基　　金：吉林省交通运输科技项目“生物橡胶复合改性沥青综合技术研究”(2018-1-2)

摘　　要：为提高生物沥青替代石油沥青的利用率,以非醇类生物沥青SHB为研究对象,采用共混工艺,以SBS为改性剂生产生物改性沥青。通过高低温性能试验、微观形貌分析和改性机理研究,探讨不同添加剂对生物沥青微观形貌的影响、揭示非醇类生物沥青的物理改性机理,明确了生物沥青共混工艺最佳掺量为15%、验证了SHB替代基质石油沥青的可行性。A blending process is adopted with SBS as the modifier to produce bio modified asphalt SHB to improve the utilization rate of bio asphalt replacing petroleum asphalt.Through high and low temperature performance tests,microstructure analysis,and modification mechanism research,the influence of different additives on the microstruc⁃ture of bio asphalt is investigated,and the physical modification mechanism of non-alcohol bio asphalt is revealed.The optimal dosage of bio asphalt blending process is determined to be 15%,and the feasibility of SHB replacing the matrix petroleum asphalt is verified.

关 键 词：生物沥青 共混工艺 微观形貌 

分 类 号：TU535[建筑科学—建筑技术科学]