沥青基纤维复合材料界面变温微力学实验平台设计  

Design of Micromechanics Experimental Platform with Variable Temperature at the Interface of Asphalt-based Fiber Composites

作　　者：娄可可 贾思林 康爱红[1] 吴正光[1] 张垚 LOU Keke;JIA Silin;KANG Aihong;WU Zhengguang;ZHANG Yao(College of Civil Science and Engineering,Yangzhou University,Yangzhou 225127,Jiangsu,China)

机构地区：[1]扬州大学建筑科学与工程学院,江苏扬州225127

出　　处：《实验室研究与探索》2025年第3期57-60,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(52408498,52178439);教育部产学合作协同育人项目(231105407203331);江苏省学位与研究生教育教学改革课题项目(JGKT23_C088)。

摘　　要：为了探究不同条件下纤维与沥青基材料界面传荷行为,设计了沥青基纤维复合材料界面变温微力学实验平台。该实验平台由微拉伸系统、数据采集系统、控温系统和显微系统组成,能结合道路实际服役条件,开展不同温度下纤维-沥青胶浆界面微力学实验。实验结果表明,纤维类型、沥青种类和实验温度对界面剪切强度影响显著。相比于玻璃纤维、聚酯纤维,玄武岩纤维与沥青胶浆界面剪切强度最大,改性沥青胶浆与纤维界面剪切强度优于基质沥青胶浆;随着实验温度的升高,界面剪切强度逐渐降低。该实验平台可为沥青基纤维复合材料界面优化设计提供支撑。In order to investigate the load transfer behavior between fiber and asphalt base materials under different conditions,an experimental platform of interfacial variable temperature micromechanics of asphalt-based fiber composites was designed.The platform is composed of micro-drawing system,data acquisition system,temperature control system and microscopic system.According to the actual service conditions of the road,the micromechanical experiments of the fiber-asphalt mastic interface at different temperatures were carried out.The results show that the interfacial shear strength is significantly affected by fiber type,asphalt type and experimental temperature.Compared with glass fiber and polyester fiber,the interfacial shear strength between basalt fiber and asphalt mastic is the largest,and the shear strength between modified asphalt mastic and fiber is better than that of matrix asphalt.The interfacial shear strength decreases gradually with the increase of experimental temperature.The experimental platform provides support for the optimal design of the interfacial interface of asphalt-based fiber composites.

关 键 词：沥青基纤维复合材料 微力学行为 单纤维拔出实验 剪切强度 实验平台 

分 类 号：G642[文化科学—高等教育学]