布敦岩沥青改性沥青胶浆高温动态流变性能的试验研究  

Test of Dynamic Rheology Properties of Buton Rock Asphalt Modified Asphalt Cement at High-temperature

作　　者：王恒斌[1] 葛折圣[2] 

机构地区：[1]长安大学公路学院 [2]华南理工大学道路研究所

出　　处：《公路交通科技》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)

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.

关 键 词：道路工程 岩沥青 试验 动态流变性能 高级流变仪 

分 类 号：U416.03[交通运输工程—道路与铁道工程] U416.217