[1]马峰,金彦鑫,傅珍,等.SEBS改性沥青混合料路用性能研究[J].郑州大学学报(工学版),2021,42(2):99-105.[doi:10.13705/j.issn.1671-6833.2021.02.002]
　Ma Feng,Jin Yanxin,Fu Zhen,et al.Road Performance of SEBS Modified Asphalt Mixture[J].Journal of Zhengzhou University (Engineering Science),2021,42(2):99-105.[doi:10.13705/j.issn.1671-6833.2021.02.002]
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SEBS改性沥青混合料路用性能研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
42
期数:
2021年2期
页码:
99-105
栏目:
出版日期:
2021-04-12

文章信息/Info

Title:
Road Performance of SEBS Modified Asphalt Mixture
作者:
马峰1,金彦鑫1,傅珍2,邢海鹏1
1.长安大学 公路学院，陕西 西安 710064；2.长安大学 材料学院，陕西 西安 710064
Author(s):
Ma Feng1, Jin Yanxin1, Fu Zhen2, Xing Haipeng1
1.School of Highway, Chang’an University, Xi’ an 710064, China; 2.School of Materials Science and Engineering, Chang’ an University, Xi’ an 710064, China
关键词:
Keywords:
SEBS;  high temperature performance;  low temperature crack resistance;  water stability;  fatigue resistance;  self-healing
DOI:
10.13705/j.issn.1671-6833.2021.02.002
文献标志码:
A
摘要:
为探讨不同掺量和加载条件下 SEBS 改性沥青混合料的路用性能及自愈合性能变化规律 ，对 SEBS 改性沥青及沥青混合料进行研究 ， 通过车辙 、 小梁弯曲 、 水稳以及四点弯曲疲劳试验对沥青混合料的高温 、 低温 、 水稳 、 抗疲劳及自愈合性能进行评价 。 结果表明 ： 沥青混合料高温性能随 SEBS 掺量的增加而提高 ， 当掺量超过 4% 时增幅较小 ； SEBS 对沥青混合料的低温和水稳定性改善效果显著 ； 改性后混合料疲劳寿命降低 ， 但初始劲度模量较基质沥青提升明显 ， 二次疲劳加载自愈合后 ， 改性沥青混合料后期模量与疲劳寿命显著优于基质沥青 。 SEBS 的掺入 ， 显著提升了沥青混合料的路用性能与自愈合寿命 ， 同时其劲度模量有所提升 ， 从而降低了混合料的初始疲劳寿命 。
Abstract:
In order to explore the changing law of the road performance and self-healing performance of SEBS modified asphalt mixture in different content and loading conditions, the SEBS modified asphalt and the asphalt mixture were studied. The high and low temperature properties, water-stability properties, self-healing and fatigue properties of SEBS modified asphalt were evaluated by the rutting test, beam bending test, water-stability, and four-point bending fatigue test. The results showed that dynamic stability increased with the increase of the SEBS content, and the increase was small when the content exceeded 4%. The incorporation of SEBS could significantly improve the low temperature performance and water stability of the asphalt mixture after freeze-thaw cycles. The fatigue life of the modified asphalt mixture was reduced, but the initial stiffness modulus was significantly higher than that of the base asphalt. After self-healing of secondary loading, the late modulus of the modified asphalt mixture and its fatigue life were significantly higher than the base asphalt mixture. The incorporation of SEBS could significantly improve the road performance and self-healing life of the asphalt mixture, but the increase of stiffness modulus, thereby reducing the initial fatigue life of the mixture.

参考文献/References:

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更新日期/Last Update: 2021-05-30