[1]刘鹏,*,史福全,等.热老化过程中SBS改性沥青流变性能研究[J].山东建筑大学学报,2018,(05):48-53.[doi:10.12077/sdjz.2018.05.008]
 Liu Peng,*,Shi Fuquan,et al.Study on the rheological properties of SBS modified asphalt during heat aging process[J].Journal of Shandong jianzhu university,2018,(05):48-53.[doi:10.12077/sdjz.2018.05.008]
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热老化过程中SBS改性沥青流变性能研究()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2018年05期
页码:
48-53
栏目:
研究论文
出版日期:
2018-10-09

文章信息/Info

Title:
Study on the rheological properties of SBS modified asphalt during heat aging process
文章编号:
1673-7644(2018)05-0048-06
作者:
刘鹏1*史福全2王鹏2汲平3任瑞波2
(1. 山东高速集团有限公司 建设管理公司,山东 济南 250101;2. 山东建筑大学 交通工程学院,山东 济南 250101; 3.山东高速工程检测有限公司,山东 济南 250002)
Author(s):
Liu Peng 1* Shi Fuquan2 Wang Peng 2 et al.
(1. Construction Management Company, Shandong High Speed Group Co., Ltd., Jinan 250101, China; 2. School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, China)
关键词:
公路工程SBS改性沥青热老化流变性能
Keywords:
highway engineering SBS modified asphalt heat aging rheological properties
分类号:
U414.1
DOI:
10.12077/sdjz.2018.05.008
文献标志码:
A
摘要:
SBS改性沥青在存储、运输、拌和、碾压及服役情况下的热老化严重影响了沥青路面的耐久性,研究热老化对SBS改性沥青流变性能衰减的影响可改善SBS改性沥青的使用效果。文章通过动态剪切流变仪,研究短期老化和长期老化过程中,SBS改性沥青的流变性能衰减情况;通过红外光谱和改性剂降解实验,分析热老化过程中改性沥青性能衰减的原因。研究表明:老化导致高温低频区SBS改性沥青复数模量增加,相位角略有降低;老化深度越大,SBS改性沥青黏性模量老化指数越大,但弹性模量变化较复杂;长期老化过程以沥青老化为主,短期老化主要以硫化物的氧化为主,SBS在老化过程中吸氧量的增加是导致其热稳定性不足的主要因素。
Abstract:
The thermal aging of SBS modified asphalt under storage, transportation, mixing, rolling and service conditions has seriously affected the durability of asphalt pavement. In this paper, the decay of rheological parameters for SBS modified asphalt during shortterm aging and longterm aging is investigated by dynamic shear rheometer, and the causes of the decay for SBS modified asphalt are further analyzed through infrared spectroscopy and modifier analysis experiments. The complex modulus and phase angle master curves of modified asphalts at different aging depths were obtained from the small strain oscillated test. The results show that the complex modulus in the hightemperature and lowfrequency areas increases and the phase angle slightly decreases with aging degree. The larger the aging depth, the larger the aging index of viscosity modulus of SBS modified asphalt, but the change of elastic modulus is more complex. In contrast, the asphalt aging mainly occurres in longterm aging, while the shortterm aging is mainly caused by sulfide oxidation. Moreover, the degradation of SBS mostly happens during the longterm aging process. In addition, the oxygen uptake of the modifier found that the increase in oxygen absorption during the aging process of SBS is the main factor that leads to its lack of thermal stability.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-09-13基金项目:山东省自然科学基金项目(ZR2018BEE042)作者简介:刘鹏(1969-),男,高级工程师,学士,主要从事公路建设管理等方面的工作.E-mail:2073003682@qq.com[*通讯作者]
更新日期/Last Update: 2018-08-08