首页|胶粉改性沥青老化机理及表征评价研究综述

胶粉改性沥青老化机理及表征评价研究综述

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综述了国内外对胶粉改性沥青老化机理、表征及评价的研究现状。胶粉改性沥青的老化过程伴随着胶粉的溶胀、降解反应以及沥青与胶粉之间的物质交互作用;胶粉改性沥青老化行为的表征主要从化学组分、分子结构、分子量、表面形貌入手，并解释其对宏观性能的影响;胶粉改性沥青老化性能评价主要采用黏度、复数模量、低温蠕变劲度、疲劳寿命等流变学指标，且通常与微观表征及化学方法相结合。然而，当前国内外对胶粉改性沥青老化过程中填料迁移行为关注较少，特别是炭黑、白炭黑等填料的作用机理有待进一步挖掘;缺乏胶粉改性沥青多组分老化特征同步表征方法;缺乏统一的老化评价指标，且大多研究在混合料老化性能验证方面存在不足。最后，提出了胶粉改性沥青老化机理及表征评价研究的发展趋势与展望。
Review on aging mechanism,characterization and evaluation of crumb rubber modified asphalt
State of the art of the aging mechanism,characterization and evaluation of CRM A at home and abroad are summarized.The aging process of CRMA is accompanied by swelling,degradation reaction of crumb rubber and the interaction between asphalt and crumb rubber.The aging behavior of CRMA is mainly characterized from the chemical components,molecular structure,molecular weight and surface morphology,and their effects on macroscopic properties are explained.Rheological parameters such as viscosity,complex shear modulus,creep stiffness at low temperature and fatigue life are mainly used to evaluate the aging performance of CRMA,which are usually combined with microscopic characterization and chemical methods.However,during the aging process of CRMA,the migration behavior of fillers,e.g.,carbon black,white carbon black,received less attention.In addition,there is a lack of simultaneous characterization method for multi-component aging characteristics of CRMA.There are no universal aging evaluation indexes for CRMA,and most of the studies are insufficient in the aging performance verification at mixture level.The development trend and prospect of aging mechanism,characterization and evaluation of CRMA are proposed.

road engineeringcrumb rubber modified asphaltreviewaging mechanismaging characterizationaging evaluation

唐乃膨、薛晨阳、刘少鹏、朱洪洲、李睿

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重庆交通大学交通土建工程材料国家地方联合工程研究中心,重庆 400074

重庆交通大学土木工程学院,重庆 400074

交通运输部规划研究院,北京 100028

道路工程 胶粉改性沥青 综述 老化机理 老化表征 老化评价

国家自然科学基金重庆市教委科学技术研究计划青年项目重庆市自然科学基金重庆市研究生联合培养基地建设项目重庆市研究生科研创新项目

51808073KJQN202100725cstc2021jcyjmsxmX0637JDLH-PYJD2020014CYS23482

2024

10.13229/j.cnki.jdxbgxb.20230651

吉林大学学报(工学版)
吉林大学

吉林大学学报(工学版)

CSTPCD北大核心
影响因子：0.792
ISSN：1671-5497
年,卷(期)：2024.54(1)
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