摘要
为了研究煤基清洁超硬质沥青对复合改性沥青的性能影响,本文在成品SBS改性沥青中加入不同掺量的煤基清洁超硬质沥青进行复合改性,基于针入度分级体系及SHRP PG分级体系表征复合改性沥青的性能。结果表明:煤基清洁超硬质沥青的加入可以明显改善沥青的高温性能、抗老化性,但对低温性能产生不利影响。在实际生产过程中,应依据改性沥青应用地域特点,兼顾其高温、低温性能,合理控制煤基清洁超硬质沥青掺量。
In order to study the influence of coal-based clean super hard asphalt on the performance of composite modified asphalt,this paper added different contents of coal-based clean super-hard asphalt to the finished SBS modified asphalt for composite modification.The performance of the composite modified asphalt is characterized by the penetration grading system and SHRP PG grading system.The results show that:the addition of coal-based clean super hard asphalt can significantly improve the high temperature performance and aging resistance of the asphalt,but it has adverse influence on the low temperature performance.In the practical production process,the amount of coal-based clean super hard asphalt should be reasonably controlled.It based on the regional characteristics of modified asphalt application,both the high temperature and low temperature performance should be taking into account.
作者
申全军
魏慧
杨耀辉
樊亮
SHEN Quanjun;WEI Hui;YANG Yaohui;FAN Liang(Innovation Research Institute of Shandong Hi-Speed Group,Jinan Shandong 250000,China;Shandong Transportation Institute,Jinan Shandong 250102,China;Shandong New Road Materials and Technology Engineering Laboratory,Jinan Shandong 250102,China;Shandong key Laboratory of Road structure and Materials,Jinan Shandong 250102,China)
出处
《交通节能与环保》
2021年第6期77-81,共5页
Transport Energy Conservation & Environmental Protection
基金
山东省交通厅科研项目(2020B34)
山东省地方路网交通建设标准化、品质提升示范项目(C1916)。
关键词
道路材料
煤基清洁超硬质沥青
复合改性沥青
针入度分级
PG分级
road material
coal-based clean super-hard as phalt
composite modified
penetration grading system
SHAP PG grading system
