摘要
多应力重复蠕变试验能够充分考虑到胶浆的延迟弹性,因此用试验所得的不可恢复蠕变柔量Jnr和不可回复蠕变柔量差值Jnr-diff来评价沥青胶浆的高温性能。结果表明矿粉的加入使不可恢复蠕变柔量减小,提高基质沥青胶浆和高黏沥青胶浆的高温性能。试验还发现可用不可恢复蠕变柔量差为0来判断基质沥青胶浆的最大粉胶比。
Multiple Stress Creep Recovery （MSCR） reflected the delayed elasticity, so the high temperature performance of asphalt mortar can be evaluated by unrecoverable creep compliance Jnr and unrecoverable creep compliance difference Jnr-diff- The results indicated that adding mineral powder decreased unrecoverable creep compliance, and improved the high temperature performance of matrix asphalt mortar and high viscosity asphalt mortar. The results also showed that unrecoverable creep compliance difference is set to 0 to estimate the maximum filler - asphalt ratio of the matrix asphalt mortar.
出处
《石油沥青》
2016年第5期49-52,共4页
Petroleum Asphalt
关键词
沥青胶浆
多应力重复蠕变试验
蠕变柔量
asphalt mortar
Multiple Stress Creep Recovery
creep compliance
