UHMWPE/Nanoclay对改性沥青流变性能的影响  

Effect of UHMWPE/Nanoclay on rheological properties of asphalt binder

作　　者：孙大勇 赵子雪 王亚平 SUN Dayong;ZHAO Zixue;WANG Yaping(Jinan Transportation Development Center,Shandong Jinan 250001 China;Shandong Transportation Institute,Shandong Jinan 250031 China;Hunan Huacheng Testing Technology Co.,Ltd.,Hunan Changsha 410017 China)

机构地区：[1]济南市交通运输事业发展中心,山东济南250001 [2]山东省交通科学研究院,山东济南250031 [3]湖南华城检测技术有限公司,湖南长沙410017

出　　处：《山东交通科技》2022年第3期119-121,共3页

摘　　要：探讨由超高分子量聚乙烯和纳米黏土组成的聚合物纳米复合材料对沥青流变性能的影响。采用动态剪切流变仪和弯曲梁流变仪分别测定了中、高温和低温条件下纳米复合材料对沥青的改性效果。结果表明,纳米复合材料的使用,特别是4%的用量(按沥青的重量计算),提高了抗车辙疲劳开裂的能力,改性沥青的低温抗裂性能优于基质沥青。The aim of this study was to investigate the effect of polymer nanocomposites composed of UHMWPE and Nanoclay on the rheological properties of asphalt binder.Dynamic shear rheometer and bending beam rheometer were used to measure the modification effect of nano-composites on asphalt binder under medium,high and low temperature conditions respectively.The results show that the use of nano-composite materials,especially 4%(calculated by the weight of asphalt binder),can improve the anti-rutting fatigue cracking ability.In addition,the low temperature crack resistance of modified asphalt binder is better than that of matrix asphalt binder.

关 键 词：沥青 疲劳 低温 车辙 UHMWPE/Nanoclay 

分 类 号：U416[交通运输工程—道路与铁道工程]