摘要
聚合物纤维是一种高性能新型增强材料,对沥青胶浆的高温性能影响较大,纤维用量、粉油比及纤维种类都会对胶浆高温性能产生影响,采用动态剪切流变仪对纤维增强沥青胶浆高温性能进行拟因素、水平的正交试验研究。试验结果表明粉油比对沥青胶浆高温性能的影响最大,纤维用量的影响次之,纤维种类差异的影响最小。但在25℃时,增强纤维与木质素纤维种类差异的影响比纤维用量的影响大,表明温度较低时,纤维的增强作用更突出。
Polymer fibers that are new type reinforced materials have much effect to asphalt mortars＇ high temperature performance, yet fiber reinforced asphalt mortars were few researched in our country with limitation of test conditions. Orthogonal tests were applied with Dynamic Shear Rheometer to assess and analyze asphalt mortar＇s high temperature performance effected by fiber content, filler/asphalt ratio and fiber type. Results show that the sequence （from important to unimportant） was filler/asphalt ratio, fiber content, fiber type, but at 25 ℃, The different effect of Xiamen reinforced fiber and cellulose fiber was bigger than fiber content, and it indicate the reinforcement role was more strong at low temperature.
出处
《石油沥青》
2006年第5期64-68,共5页
Petroleum Asphalt
关键词
动态剪切流变仪
沥青胶浆
正交试验
高温性能
Polymer fiber
Dynamic Shear Rheometer （DSR）
Asphalt mortar
Orthogonal test
