An Analysis over the Correlation Between Low Temperature Rheological Properties of SBS-modified Asphalt and Raw Materials' Performance Parameters

被引：0

作者：

Ma X. ^{[1
,2
]}

Chen H. ^{[1
,2
]}

Zhang X. ^{[3
]}

Xing M. ^{[1
,2
]}

Yang P. ^{[3
]}

Wang Z. ^{[3
]}

机构：

[1] School of Material Science and Engineering, Chang'an University, Xi'an

[2] Engineering Research Center of Transportation Material of Ministry of Education, Chang'an University, Xi'an

[3] Gansu Road and Bridge Construction Group Maintenance Technology Co., Ltd., Lanzhou

来源：

Chen, Huaxin (chx92070@163.com) | 2018年 / Cailiao Daobaoshe/ Materials Review卷 / 32期

关键词：

Bending beam rheological (BBR) test; Four constituents of asphalt; Gray relational grade analysis; Modified asphalt; Performance parameters of modifier; Styrene-butadiene-styrene block copolymer (SBS);

D O I：

10.11896/j.issn.1005-023X.2018.22.009

中图分类号：

学科分类号：

摘要：

The low temperature rheological properties of SBS modified asphalt strongly depends on raw materials. This paper describes the correlation of the stiffness modulus (S) and creep rate (m) of SBS-modified asphalt with raw materials' performance parameters. Orthogonal experiment of L25(53) was designed using five types of bitumen, five kinds of SBS modifier and five different levels of modifier adding amount, and the samples were tested using bending beam rheological (BBR) to obtain the -18℃ stiffness and m value. Range analysis was used to evaluate the influence level of different raw material, gray relational grade was used to analyze the correlation between raw material performance parameters and low temperature rheological properties of SBS-modified asphalt. According to the results obtained from the experimental program, bitumen has the most significant influence on SBS modified asphalt stiffness and m value, followed by the modifier, and the effect of SBS modifier adding amount was inconspicuous. The calculation indicated that bitumen performance parameters, -18℃ stiffness modulus, m value, and the composition such as the total content of colloid and aromatic, SBS performance parameters such as tensile stress, tensile strength, elongation have obvious correlations with the low temperature rheological properties of SBS-modified asphalt. © 2018, Materials Review Magazine. All right reserved.

引用

页码：3885 / 3890

页数：5

共 13 条

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