表面预处理PVA纤维改性沥青的高温流变性能

Q4 Engineering

Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-07-01 DOI:10.3724/sp.j.1249.2022.04409

Wei Zhang, Zhao Zhang, H. Cao, Xie Junjie, Huaxin Xu, Dongyu Niu

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引用次数: 0

摘要

摘要：为了提高聚乙烯醇（PVA）纤维与沥青在沥青路面中的相容性，采用KH-570硅烷偶联剂对PVA纤维表面进行了预处理。通过接触角、旋转粘度、温度扫描、多重应力蠕变恢复（MSCR）和线性振幅扫描（LAS）等测试，研究了不同含量的原始PVA纤维（T）和表面处理PVA纤维（ST）改性沥青的相容性和高温流变性能，从而评价表面改性工艺对PVA纤维改性沥青流变性能的影响。结果表明，表面处理工艺提高了沥青与PVA纤维的相容性。与T相比，在相同含量下，ST具有更好的增粘效果、抗车辙性能和抗永久变形性能，

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High temperature rheological properties of surface pretreated PVA fiber modified asphalt

Abstract: In order to improve the compatibility of polyvinyl alcohol (PVA) fiber and asphalt in application of asphalt pavement, the surface of PVA fiber is pretreated with KH-570 silane coupling agent. The tests such as contact angle, rotational viscosity, temperature scanning, multiple stress creep and recovery (MSCR) and the linear amplitude sweep (LAS) are conducted to study the compatibility and high temperature rheological properties of original PVA fiber (T) and surface treated PVA fiber (ST) modified asphalts with different contents, so as to evaluate the effect of surface modification process on the rheological properties of PVA fiber modified asphalt. The results show that the surface treatment process improves the compatibility of asphalt and PVA fiber. Compared with T, ST has better viscosity increasing effect, rutting resistance, and permanent deformation resistance at the same content,

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来源期刊

Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Engineering-Engineering (miscellaneous)

CiteScore

0.90

自引率

0.00%

发文量