橡胶混凝土界面与性能改进研究进展及分析

Research Progress and Analysis of Rubberized Concrete Interface and Performance Improvement

废旧橡胶已给我国脆弱的生态环境带来严重的"黑色污染".橡胶混凝土是回收利用废旧橡胶的有效途径.近年来,橡胶与水泥基体界面性能已成为研究热点.本文总结了橡胶与水泥基体界面粘结机理的研究现状,分析了橡胶混凝土界面及性能改进的各种措施.针对目前橡胶混凝土改性方法单一、废物利用量少、界面性能表征不完善等薄弱之处,提出今后在橡胶混凝土领域需要加强研究的重点和方向.研究表明,仍需加强橡胶混凝土界面粘结性能表征、改性组合方法和成本等方面研究.

Waste rubber has brought serious "black pollution" to our fragile ecological environment. Rubberized concrete is an effective way to recycle waste rubber. In recent years, the interfacial properties between rubber and cement matrix have become a research hotspot. The research status of bonding mechanism between rubber and cement matrix is summarized, and various measures for improving the interface and performance of rubberized concrete are analyzed. In view of the weakness of single modification method, less waste utilization and imperfect characterization of interfacial properties of rubberized concrete, etc., the emphasis and direction of future research in the field of rubberized concrete are put forward. The results show that it is still necessary to strengthen the research on the following aspects of rubberized concrete: modifier concentration, dosage and economy;rubber type selection, mix ratio and preparation parameters;characterization, testing methods and influence factors of interfacial bonding performance, as well as interfacial structure, failure mechanism, interfacial and macro-performance relationship.