摘要
利用室内试验和现场钻芯检测相结合的方法,对厂拌冷再生马歇尔试件的击实与养生方法进行了研究.试验结果表明,厂拌冷再生马歇尔试件二次击实的时间间隔设为4 h的试件,其稳定度与室内长期养生的试验结果相差不大,与现场钻芯检测的结果更为接近.研究结果说明,提出的厂拌冷再生马歇尔试件击实与养生方法,比较符合厂拌冷再生路面的实际成型过程,按此方法制备的马歇尔试件,能较为准确地反映出厂拌冷再生路面的后期路用性能.
Combining lab experiment with sampling test by corebit in-situ, the compacting and curing of Marshall specimen for cold recycled plant-mixed asphalt pavements were studied. The results showed that if the time interval between two compacting operation was 4hr, the stability of Marshall specimen is close to the results of the sampling testing especially the lab experimental of curing for long. If the specimen was cured for 24hr in lab, the stability changes slightly and is closer to the result of sampling test by corebit in-situ. The proposed compacting/curing method of Marshall specimen conforms comparatively to the actual formation process of cold recycled asphalt pavements and the Marshall specimen thus prepared can reflect the pavement performance more accurately in near future.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第5期737-740,共4页
Journal of Northeastern University(Natural Science)
基金
交通部西部交通建设科技项目(200431877352)
关键词
道路工程
厂拌冷再生
马歇尔试件
击实
养生
road engineering
cold asphalt pavements
Marshall specimen
compacting
curing
