混凝土裂缝自愈合技术机理及表征评价体系研究

作者：刘玲

作者简介：

刘玲，硕士，高级工程师，E?mail:22695938@ qq.com

作者单位：

济南轨道交通集团有限公司，山东济南 250010

基金项目：

山东省自然科学基金（ ZR2013EML007）；山东省交通运输科技计划（2020B06,2021B01?1）

摘要：

明确了现阶段混凝土自愈合技术研究类型主要分为自生愈合与自主愈合技术，并深入解析了各种类型的愈合机制，概述国内外学者研究成果，探讨各类型制约因素及优缺点；同时介绍了基于紫外线固化剂胶囊的自愈合技术和基于仿生学原理的维管网自愈合技术。综述了自愈效果表征评价方法体系，阐明了自愈合技术对提高混凝土耐久性的实际意义，总结了当前混凝土自愈合技术取得的成果及存在问题。

关键词：混凝土；裂缝；自愈合技术；机理；表征评价

English：

It is clear that the research types of concrete self?healing technology at this stage are mainly divided into self?healing and autonomous technologies, and various types of healing mechanisms are deeply analyzed. The research results of scholars at home and abroad are summarized, and the constraints, advantages and disadvantages of each type are discussed. At the same time, two advanced self?healing technologies, self?healing technology based on ultraviolet curing agent capsule and selfhealing technology based on bionics principle are introduced. The evaluation method system of selfhealing effect characterization is reviewed. The practical significance of self?healing technology to improve the durability of concrete is expounded. The achievements and existing problems of current concrete selfhealing technology are summarized.

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试验研究 > 2023年 第52卷 第16期