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Improvement of Deformation Resistancy of Asphalt by Modification with Tire Rubber
被引:0
作者:
Ko, Mun Bo
[1
]
Hong, Young Keun
[1
]
机构:
[1] Univ Suwon, Dept Polymer Engn, Suwon 440600, South Korea
来源:
ELASTOMERS AND COMPOSITES
|
2008年
/
43卷
/
02期
关键词:
asphalt;
modifier;
GRT;
plastic deformation;
Marshall stability;
D O I:
暂无
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
Nowadays, modifying asphalt to improve the resistancy of plastic deformation or rutting on roads has been drawing attention. In this study, asphalts were modified with modifying agents and ground rubber from waste tire (GRT), and the effects of modifier and GRT on the properties of asphalt were analyzed. The Marshall stability of modified asphalt was increased by 98% and the tensile strength increased by 43% compared to straight asphalt. GRT played an important role in enhancing these properties. Viscosity tests, penetration tests and TMA analysis showed the deformation resistancy of modified asphalt. IR and GPC tests indicated that asphalt and modifier have similar chemical structures to each other, and chemical bonding between asphalt and modifier have occurred so that the molecular size lengthened.
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页码:72 / 81
页数:10
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