期刊论文

Laboratory investigation on effects of organic montmorillonite on performance of crumb rubber modified asphalt

Wang, Ji-jing

英文

中南大学学报(英文版)

2095-2899

2020

27

12

3888-3898

10.1007/s11771-020-4578-5

Projects（51838001, 51878070, 51908069） supported by the National Natural Science Foundation of China；

本校为第一且通讯机构

In this paper, organic montmorillonite (OMMT) was added into crumb rubber modified asphalt (CRMA) to improve its high temperature performance, anti-aging performance and storage stability. The effects of different OMMT content on properties of CRMA were studied. The rutting factor obtained by dynamic shear rheological (DSR) test was adopted to evaluate the high-temperature performance. The creep stiffness and m value determined by the bending beam rheometer (BBR) test were employed to evaluate the low-temperature performance. The softening poin...

本文将有机蒙脱土掺入胶粉改性沥青中,以期提高沥青的高温性能、抗老化性能及储存稳定性能,并研究不同有机蒙脱土掺量对胶粉改性沥青性能的影响。通过开展动态剪切流变试验测车辙因子、弯梁流变仪试验测劲度模量及蠕变速率、长期及短期老化前后3个指标的变化情况,来研究不同有机蒙脱土掺量对胶粉改性沥青高温性能的影响,48 h 及7 d 离析试验来综合评价有机蒙脱土及其掺量对路用性能及储存稳定性能的影响。试验结果表明:有机蒙脱土的掺入提高了胶粉改性沥青的高温性能与抗老化性能,且随着有机蒙脱土掺量的增加,改善效果也越明显。但有机蒙脱土的掺入降低了胶粉改性沥青的低温性能。当有机蒙脱土掺...