摘要
为了评价不同掺量的布敦岩沥青对基质沥青的改性效果,采用先进的动态剪切流变仪Advanced Rheometer(AR)对岩沥青改性沥青胶浆的高温动态流变性能进行了试验研究,主要评价指标有相位角、储能模量、车辙因子和动粘度等。研究发现岩沥青改性沥青胶浆的高温性能明显优于基质沥青;车辙因子和动粘度指标显示岩沥青改性沥青胶浆具有与SBS改性沥青胶浆相当的抗车辙性能,但是,其温度敏感性高于SBS改性沥青胶浆;岩沥青掺量对胶浆性能影响较明显,岩沥青与基质沥青质量比达到1∶1时,沥青胶浆的高温性能已经得到明显改善,可以满足路面使用性能要求。
To evaluate properties of asphalt cement modified by different contents of Buton rock asphalt, dynamic theology properties at high-temperature such as phase-angle, storage module, rutting parameter and dynamic viscosity of modified asphalt cement were investigated by Advanced Rheometer （AR） . It is found that （1） high-temperature performance of rock asphalt modified asphalt cement is much better than that of base asphalt; （2） its rutting factor and dynamic viscosity are equivalent to those of SBS modified asphalt, but the former＇ s temperature susceptibility is worse than the latter＇s . Consequently, the results show that the effect of content of rock asphalt on modified asphalt cement performance is remarkable. When mass ratio reaches 1 ： 1, high-temperature performance of rock asphalt modified cement can be improved evidently and can satisfy pavement performance requirement.
出处
《公路交通科技》
CAS
CSCD
北大核心
2008年第9期63-66,共4页
Journal of Highway and Transportation Research and Development
基金
安徽省交通科技进步计划资助项目(2006012)
关键词
道路工程
岩沥青
试验
动态流变性能
高级流变仪
road engineering
rock asphalt
test
dynamic theology property
advanced rheometer
