文献类型：期刊文献

英文题名：Influence of Aggregate and Asphalt Type on the Bond Strength between Asphalt and Aggregates and Its Self-Healing Properties

作者：Gan, Xinli Zhang, Wenli Li, Jie Tang, Hui Zhong, Peiyuan

通信作者：Gan, XL[1]

机构：[1]Guizhou Inst Technol, Sch Transportat Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Guizhou Highway Dev Co Ltd, Guiyang 550081, Guizhou, Peoples R China;[3]Guizhou Qiancheng Hongjing Engn Consulting Co Ltd, Guiyang 550018, Guizhou, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Transportat Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院;

年份：2022

卷号：2022

外文期刊名：ADVANCES IN MATERIALS SCIENCE AND ENGINEERING

收录：;EI(收录号：20224613113475);Scopus(收录号：2-s2.0-85141727611);WOS:【SCI-EXPANDED(收录号:WOS:000880429200001)】；

基金：This research was funded by the Science and Technology Support Plan of Guizhou Province, grant number (2020)2Y061, and the Growth Project of Young Scientific and Technological Talents in General Colleges and Universities in Guizhou Province, grant number (2022)351.

语种：英文

外文关键词：Adhesion - Adhesives - Asphalt - Bond strength (materials) - Lime - Self-healing materials - Sols

摘要：Determining the bond strength between asphalt and the aggregate base material is an intuitive way to ascertain the adhesion. In this study, we determined the bond strength between different types of asphalt and aggregates. First, the influence of these types of asphalt and aggregates on the bond strength was evaluated. Second, the bond strength of lime aggregate-based material and five types of asphalt in dry and immersion states was measured, and the influence of water on the bond strength was investigated. Third, the asphalt was extracted into aromatic, saturated, colloidal, and asphaltene by an asphalt component separation test, and the bond strength between each asphalt component and aggregate was tested. Finally, for the specimens with adhesive failure, the bond strength was retested to evaluate the self-healing ability of the adhesive. The results show that adhesion is influenced by asphalt and aggregate types as well as water immersion. The adhesion between asphalt and aggregate is primarily gum-based, followed by aromatics. After adhesion failure, the adhesion recovers to a certain extent (that is, it self-heals), but the healing rate decreases with the increase in test frequency; the adhesion tends to be stable after the third test.