期刊论文

Properties of graphene oxide modified asphalt binder

中文

中国粉体技术

1008-5548

2018

24

4

70-76

10.13732/j.issn.1008-5548.2018.04.014

湖南省自然科学基金项目（常德市联合基金项目）,编号:2016JJ5009； 中国博士后科学基金资助项目,编号:2018M633003； 湖南省交通运输厅科技进步与创新计划项目,编号:201731；

本校为第一机构

为了研究氧化石墨烯(GO)改性沥青结合料的性能,分别利用质量分数为0%、0.02%、0.05%和0.08%的GO掺加到AH- 70#沥青和SBS改性沥青结合料中进行黏度实验,以及针入度、软化点和延度等3大指标实验和动态剪切流变(DSR)、多应力恢复蠕变(MSCR)、弯曲梁流变测试(BBR)等实验。结果表明:加入GO可显著提高沥青结合料的黏度、高温稳定性和抗车辙能力,但对低温抗裂性影响并不显著;明显降低沥青结合料的针入度,提高其软化点,但对延度的影响不大;不会明显改变沥青结合料的玻璃化转变温度,但可显著提高其交联密度;对基质沥青的改性效果优于SBS改性沥青,最佳掺量分别为0.05%和0.2%。

In order to obtain the performance of the graphene oxide（GO） modified asphalt binder, the viscosity test, traditional indicators test and SHRP test were carried out on the AH-70# asphalt binder and SBS modified asphalt binder with different GO dosages. The results show that the addition of GO can significantly improve the viscosity, high temperature stability and anti-rutting ability of asphalt binder, but it has no obvious effect on low temperature crack resistance. GO can obviously reduce the penetration of asphalt binder and improve its so...