摘要
为缓解夏季热岛效应和减少路面病害,“凉爽路面”已从概念得到落实,其中相变材料因其自动控温的特性受到了道路工程研究人员青睐。介绍了相变材料的分类及其特点,概述了路面传热机理模型和影响因素。针对直掺相变沥青性能劣化的问题,提出了复合相变材料技术并展开介绍其应用效果。还总结归纳了相变改性沥青控温效果测试方法的优缺点,综述了复合相变材料对沥青及沥青混合料的降温效果和性能影响,最后指出了当前路用相变材料应深入研究的方向,并对复合相变材料泄漏问题提出了改进方法与展望。
To alleviate the urban heat island effect during summer and reduce pavement damage,the concept of“cool pavements”has been implemented.Among them,phase change materials(PCMs)have been favored by road engineering researchers due to their self-regulating temperature properties.This paper introduced the classification and characteristics of PCMs,outlined the models of heat transfer mechanisms of pavement,and discussed the influencing factors.Addressing the issue of performance degradation in direct incorporation of PCM modified asphalt,the paper proposed the use of composite PCM materials and elaborated on their application effects.Additionally,the paper summarized the advantages and disadvantages of testing methods for evaluating the temperature control effects of PCM modified asphalt,and provided an overview of the cooling effects and performance influences of composite PCM materials on asphalt and asphalt mixtures.Finally,it highlighted the research directions of current PCM materials for pavement,and presented improvement methods and prospects for addressing the issue of PCM leakage.
作者
曾正源
王雪婷
江雨臻
况栋梁
陈华鑫
Zeng Zhengyuan;Wang Xueting;Jiang Yuzhen;Kuang Dongliang;Chen Huaxin(School of Materials Science and Engineering,Chang'an University,Xi'an 710061)
出处
《化工新型材料》
CAS
CSCD
北大核心
2024年第6期212-217,共6页
New Chemical Materials
基金
浙江省交通厅科技项目(2021041)
陕西省交通厅项目(21-22K)
青海省科技厅科技项目(2021-SF-165)
陕西秦创原项目(2022KXJ-004)。
关键词
沥青路面
复合相变材料
路用性能
降温效果
相变焓
asphalt pavement
composite phase change material
road performance
cooling effect
phase change enthalpy
