水泥基复合材料热电效应综述:机制、材料、影响因素及应用

A review of thermoelectric effect of cement-based composites:Mechanism,material,factor and application

在水泥基复合材料中掺入功能填料会使其获得将热能转化为电能的热电效应,可用于环境热量转换收集、混凝土结构健康检测传感器和智慧交通系统等方面。本文总结了热电水泥基复合材料(TECC)的热电效应机制、常用的功能填料、制备过程及主要工程应用,重点分析了不同功能填料对TECC热电效应的增强效果和机制,及材料分散程度、水分、疲劳荷载、温度循环等因素对TECC热电效应的影响机制。本综述指明了TECC在理论和应用方面的研究新方向,对今后水泥基复合材料热电效应的实验设计和性能提升具有指导作用。

Incorporating functional fillers into the cement-based material can enable them to obtain the thermoelectric effect of converting thermal energy into electrical energy,which can be used in energy harvesting,concrete structure health monitoring and intelligent transportation system.This paper summarizes the thermoelectric effect mechanism,functional fillers,fabrication process and engineering application of thermoelectric cement-based composites(TECC).Particularly,this paper mainly focuses on the enhancement effect and mechanism of different functional fillers on the thermoelectric effect of TECC,as well as the effect of dispersion degree of functional filler,moisture,fatigue load,temperature cycle and other factors on the thermoelectric effect of TECC.This review points out the new research direction of TECC in theory and application,which will guide the experimental design and performance improvement of the thermoelectric effect of cement-based composites.