沥青胶浆的多应力重复蠕变回复试验  

Asphalt Mortar's Multiple Stress Repeated Creep Recovery Test

作　　者：王树杰[1] 朱辉[2] 李永振[3] 樊亮[3] 

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]山东建筑大学交通工程学院,济南250031 [3]山东省交通科学研究所,济南250031

出　　处：《石油沥青》2015年第2期53-57,共5页Petroleum Asphalt

基　　金：山东省自然科学基金(ZR2009FL020);山东省交通科技创新项目(2012Y01)

摘　　要：重复蠕变试验能够很好地考虑到延迟弹性和模拟实际承载、卸栽,因此用该试验所得的不可恢复的蠕变柔量Jnr来评价沥青胶浆高温性能。选用6种矿粉和5种粉胶比,试验结果表明矿粉的加入使不可恢复蠕变柔量减小,提高沥青胶浆的高温性能。但当粉胶比大于1.2后,蠕变柔量变化幅度减小,建议粉胶比不大于1.2。Multiple stress repeated creep recovery （MSCR） test considered the delayed elasticity and simulated the actual loading and unloading, so the high temperature performance of asphalt mortar was evalua- ted with unrecoverable creep compliance Jnr. In this paper , six kinds of mineral fillers and five ratios of fill- er bitumen were choieed. The test results showed that adding mineral fillers reduced unrecoverable creep com- pliance, and improved the high temperature performance of asphalt mortar. But when the ratio of filler bitumen was more than 1.2, the changeable amplitude of unrecoverable creep compliance decreased, so the ratio of filler bitumen was not more than 1.2 best.

关 键 词：高温性能 蠕变柔量 沥青胶浆 

分 类 号：TE626.86[石油与天然气工程—油气加工工程]