[1]马峰、金彦鑫、傅珍、邢海鹏.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(02):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(02):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02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、金彦鑫、傅珍、邢海鹏
长安大学公路学院;长安大学材料学院;

Author(s):
Ma Feng; Jin Yanxin; Fu Zhen; Xing Haipeng;
Chang’an University Highway College; College of Materials of Chang’an University;

关键词:
Keywords:
DOI:
10.13705/j.issn.1671-6833.2021.02.002
文献标志码:
A
摘要:
为改善沥青混合料路用性能并兼顾良好耐候性，采用高速剪切机制备不同掺量SEBS改性沥青，测定各项性能指标并研究其对沥青混合料路用性能的影响规律。通过高温稳定性试验、低温抗裂性试验、浸水马歇尔和冻融劈裂试验以及四点弯曲疲劳试验对SEBS改性沥青混合料的高温、低温、水稳以及抗疲劳性能进行评价研究。研究表明：沥青混合料动稳定度随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冻融循环后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，且随掺量的增加逐步提升，表现出优异的自愈合性能。
Abstract:
In order to improve the road performance of asphalt mixture and take into account the good weather resistance, high-speed shearing machine was used to prepare different amounts of SEBS modified asphalt. Various performance indicators were measured and their influence on the road performance of the asphalt mixture was studied. The high temperature, low temperature, water stability and fatigue resistance of SEBS modified asphalt mixture were evaluated by high temperature stability test, low temperature crack resistance test, freeze-thaw splitting and water-immersed Marshall test and four-point bending fatigue test. The test shows that the dynamic stability of asphalt mixture increases with the increase of SEBS content, and the increase is smaller when the dosage exceeds 4% SEBS has a significant effect on improving the low-temperature performance of asphalt mixtures and water stability after freeze-thaw cycles The fatigue life of the post-mixing material is reduced, but the initial stiffness modulus is significantly higher than that of the matrix asphalt. After the secondary fatigue loading self-healing, the late modulus and fatigue life of the modified asphalt mixture are significantly better than the matrix asphalt, and gradually increase with the increase of the dosage, showing excellent self-healing properties
更新日期/Last Update: 2021-05-30