华东交通大学学报2016，Vol.33Issue(5)：12-17,6.
基于正交试验的温拌橡胶沥青稳定性研究
Study on Stability of Rubberized Warm Asphalt Based on Orthogonal Experiment
摘要
Abstract
In order to probe into the effects of four preparation parameters including rubber powder dosage, warm mix additives dosage, stirring temperature and stirring time on rubberized warm asphalt stability , this study de-signs the orthogonal experiment of 4 factors and 3 levels. By asphalt binder separation test, it obtains the differ-ence of rubberized warm asphalt softening point and compares the stability of different preparation parameters of rubberized warm asphalt. Test results show that the influence degree of preparation parameters on warm mix as-phalt rubber stability is in the following order: warm mix additives dosage > powder dosage > stirring time >stirring temperature. Warm mix asphalt rubber stability decreases with the increase of crumb rubber amount and warm mix additives amount. In the production of warm mix asphalt rubber, crumb rubber amount and warm mix additives volume should not be too large in case of causing serious segregation. It concludes also that stirring time for about 60 minutes is appropriate to ensure powder fully swelling and the stirring temperature should not be too high in case of asphalt over aging.关键词
橡胶沥青/温拌剂/稳定性/制备参数/正交试验Key words
rubberized warm asphalt/warm mix additives/stability/preparation parameter/orthogonal experiment分类
交通工程引用本文复制引用
彭刚..基于正交试验的温拌橡胶沥青稳定性研究[J].华东交通大学学报,2016,33(5):12-17,6.基金项目
国家自然科学基金项目(51308329) （51308329）
山西省青年科技研究基金项目(2015021115) （2015021115）
