[1]谭波,樊雨竹,李青,等.温湿耦合循环对SBS改性沥青胶浆的性能影响[J].华侨大学学报(自然科学版),2024,45(4):478-486.[doi:10.11830/ISSN.1000-5013.202310006]
　TAN Bo,FAN Yuzhu,LI Qing,et al.Effect of Temperature and Humidity Coupling Cycles on Performance of SBS Modified Asphalt Mastic[J].Journal of Huaqiao University(Natural Science),2024,45(4):478-486.[doi:10.11830/ISSN.1000-5013.202310006]
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温湿耦合循环对SBS改性沥青胶浆的性能影响()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第45卷
期数:
2024年第4期
页码:
478-486
栏目:
出版日期:
2024-07-20

文章信息/Info

Title:
Effect of Temperature and Humidity Coupling Cycles on Performance of SBS Modified Asphalt Mastic
文章编号:
1000-5013(2024)04-0478-09
作者:
谭波1; 2;  樊雨竹1; 2;  李青1; 2;  谢恩连3;  刘敬霜3
1. 桂林理工大学 土木与建筑工程学院, 广西 桂林 541004;2. 桂林理工大学 有色金属矿产勘查与资源高效利用省部共建协同创新中心, 广西 桂林 541004;3. 广西田新高速公路有限公司, 广西 崇左 532800
Author(s):
TAN Bo1; 2;  FAN Yuzhu1; 2;  LI Qing1; 2;  XIE Enlian3;  LIU Jingshuang3
1. School of Civil and Architectural Engineering, Guilin University of Technology, Guilin 541004, China; 2. Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilizartion of Resources, Guilin University of Technology, Guilin 541004, China; 3. Guangxi Tianxin Expressway Limited Company, Chongzuo 532800, China
关键词:
SBS改性沥青胶浆;  湿热环境;  耦合老化;  微观分析;  老化性能
Keywords:
SBS modified asphalt mastics;  hot and humid environment;  coupled aging;  micro-analysis;  aging property
分类号:
U414
DOI:
10.11830/ISSN.1000-5013.202310006
文献标志码:
A
摘要:
为探究SBS改性沥青胶浆在自然环境中受到温度和湿度共同作用下的性能变化,模拟温湿耦合循环环境进行室内试验。在不同温度区间的循环条件下,采用锥入度试验、软化点试验、延度试验、布氏旋转黏度试验和双边缺口拉伸试验评价SBS改性沥青胶浆的宏观性能变化;结合红外光谱测试,从化学成分角度探究其性能变化机理。研究结果表明:随着温湿耦合循环次数增加,SBS改性沥青胶浆出现变硬、变脆等老化现象,其宏观性能发生衰退;在相同试验条件下,温度区间的温差越大,对胶浆性能的影响越大;在温湿耦合循环后,SBS改性沥青胶浆的亚砜基指数增大,丁二烯指数下降。
Abstract:
In order to investigate the performance changes of SBS modified asphalt mastic under the joint action of temperature and humidity in the natural environment, indoor tests were carried out to simulate the temperature and humidity coupling cyclic environment. Under the cyclic conditions of different temperature intervals, the cone penetration test, the softening point test, the ductility test, Brookfield viscosity test, and double-edge-notched tension test were used to evaluate the macroscopic property changes of SBS modified asphalt mastic; combining with the infrared spectrometer, the mechanism of the performance change was studied from the perspective of chemical composition. The results show that: with the increase of the number of temperature and humidity coupling cycles, the SBS modified asphalt mastic appears to become hard, brittle and other aging phenomena, and its macroscopic properties declines; under the same test conditions, the higher the tem-perature difference between the intervals of the mastic has a greater impact on its performance; the sulfoxide index of SBS modified asphalt mastic increases after the temperature and humidity coupling cycle, and the butadiene index also decreases.

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备注/Memo

备注/Memo:
收稿日期: 2023-10-10
通信作者: 谭波(1977-),男,教授,博士,主要从事路基路面工程及新型建筑材料的研究。E-mail:bbsz2004@163.com。
基金项目: 国家自然科学基金资助项目(52268039)https://hdxb.hqu.edu.cn/
更新日期/Last Update: 2024-07-20