SBS改性沥青热储存稳定性探讨及其等级划分  

Discussion and Performance Classification on Thermal Storage Stability of SBS Modified Asphalt

作　　者：张婷婷 李进 付建村 ZHANG Ting-ting;LI Jin;FU Jian-cun(Shandong Transportation Research Institute,Jinan 250100,Shandong,China;Anhui Transportation Holding Group Co.,Ltd.,Hefei 230088,Anhui,China)

机构地区：[1]山东省交通科学研究院,山东济南250100 [2]安徽省交通控股集团有限公司,安徽合肥230088

出　　处：《合成材料老化与应用》2024年第2期57-60,共4页Synthetic Materials Aging and Application

基　　金：“海右名家”产业领军人才支持工程(项目编号:20230117)。

摘　　要：针对SBS改性沥青储存稳定性问题日益突出的现状,该文对改性沥青离析现象的本质进行了探讨,提出了离析指标等级划分建议,并对改性沥青储存稳定性快速检测新方法进行了总结。综合分析表明,改性沥青储存稳定性的优劣与体系的相容性有关,而改性沥青的离析现象是由热力学与动力学因素共同决定的;为实现对SBS改性沥青储存稳定性的精准评价,建议将离析指标划分为Ⅰ~Ⅴ五个等级;随着分析手段的不断进步,快速化、精准化、标准化已成为改性沥青储存稳定性快速检测技术的发展方向。In view of the increasingly prominent problems in the storage stability of SBS modified asphalt,the essence of the segregation phenomenon was discussed in this paper,the classification of segregation indicators was proposed,and the new method for rapid detection of storage stability of modified asphalt was summarized.Comprehensive analysis shows that the storage stability of modified asphalt is related to the compatibility of the system.The segregation of modified asphalt is determined by thermodynamic and dynamics factors.In order to evaluate the storage stability of SBS modified asphalt accurately,it is suggested to divide the segregation index into five grades:Ⅰ~Ⅴ.With the continuous development of analytical methods,rapid,accurate and standard detection technology of storage stability has become the new development direction.

关 键 词：SBS改性沥青 储存稳定性 热力学 动力学 等级划分 快速检测 

分 类 号：U414[交通运输工程—道路与铁道工程]