Effects of SBS Content on the Performance of Modified Asphalt

2nd International Conference on Civil Engineering and Materials Science

Zhuang, Chuanyi^1 ; Li, Ning^1 ; Zhao, Wei^2 ; Cai, Chuanfeng^2

School of Transportation and Civil Engineering, Shandong Jiaotong University, University Science and Technology Park, No. 5001 Haitang Rd, China^1

Shandong Taihe Highway Engineering Company, No. 36, Dongtai Road, Huantai New District, China^2

关键词: Engineering applications;    High temperature performance;    Low temperature performance;    Penetration index;    SBS-modified asphalt;    Styrene butadiene styrenes;    Technical requirement;    Temperature sensitivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/216/1/012028/pdf
DOI  :  10.1088/1757-899X/216/1/012028

来源: IOP

【 摘 要 】

The effects of different dosage SBS (Styrene-butadiene-styrene) modifiers on the properties of asphalt were compared and analyzed from the temperature sensitivity, high temperature performance and low temperature performance of modified asphalt. The results show that with the increase of the content of SBS modifier, the softening point and kinematic viscosity of SBS modified asphalt are increased and the high temperature performance is improved. The low temperature ductility is improved; the penetration of modified asphalt is reduced, the temperature sensitivity of the asphalt is reduced. However, when the content of modifier is more than 4%, the penetration index of SBS modified asphalt decreases linearly with the increase of the content of modifier, and the temperature sensitivity increases. The engineering application should be determined according to the specific technical requirements.