Effect of aging on the high-temperature rheological properties of SBS modified asphalt

Ningli Li, Xinpo Zhao, Tiehu Li, Jianzhong Pei

科研成果: 书/报告/会议事项章节会议稿件同行评审

5 引用 (Scopus)

摘要

The aging existing in use and construction of bituminous pavement will directly resulting in shortening of the pavement's service life. It is provide the theoretical basis of the design and construction of the SBS modified asphalt mixture to analyze the influence of aging to the rheological property of SBS modified asphalt under high temperature. The testing for the rheological property of three kinds SBS modified asphalt under high temperature has been finished before and after the aging in construction by Brookfield DV II+ type of rotation viscometer. The results indicated that viscosity will be increased and the sensitivity of SBS modified asphalt to viscosity will also be lowered along with increase of aging degree. The testing for the rheological property of three kinds of SBS modified asphalt has been finished before and after aging in usage period by the dynamic shear rheometer (DSR). The results shown that G * will be continually increased along with increase of aging degree and this is consistent with change of base asphalt. And this shown that the increase of G* can only come down to oxidation and aging of base asphalt contained in the modified asphalt and also, asphaltene in SBS modified asphalt will be changing in the mode same with that of base asphalt.

源语言英语
主期刊名Advances in Building Materials
2458-2463
页数6
DOI
出版状态已出版 - 2011
活动2011 International Conference on Structures and Building Materials, ICSBM 2011 - Guangzhou, 中国
期限: 7 1月 20119 1月 2011

出版系列

姓名Advanced Materials Research
168-170
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Structures and Building Materials, ICSBM 2011
国家/地区中国
Guangzhou
时期7/01/119/01/11

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