Low-temperature properties of styrene-butadiene-styrene polymer modified bitumens

被引:41
|
作者
Lu, XH [1 ]
Isacsson, U [1 ]
Ekblad, J [1 ]
机构
[1] Royal Inst Technol, Div Highway Engn, S-10044 Stockholm, Sweden
关键词
highway materials; polymer modified bitumens; low-temperature properties;
D O I
10.1016/S0950-0618(98)00032-4
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Low-temperature properties of the modified bitumens containing styrene-butadiene-styrene (SBS) polymers were investigated using conventional methods, dynamic mechanical analysis (DMA) and bending beam rheometer (BBR). Effects of the characteristics of base bitumens and polymers and the proportion of the components on these properties were studied. The results indicated that SBS polymers improved low-temperature properties of bitumens. The degree of improvement generally increased with SBS content and were influenced slightly by SBS structure. The study also showed a statistically linear relationships between different low-temperature parameters. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
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页码:405 / 414
页数:10
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