海洋混凝土仿生自修复技术研究进展

Research Progress on Bionic Self-Healing Technology of Marine Concrete

摘要: 海洋混凝土自修复是根据生物体受伤后机体自修复的原理，在混凝土中复合微生物孢子及其载体，当海洋混凝土出现裂缝时，微生物能够智能修复裂缝使其愈合，恢复甚至提高混凝土强度，阻止氯离子等有害离子侵蚀内部钢筋及混凝土。海洋混凝土自修复系统将会节省混凝土修补所需的高额费用，节省建筑的维护费用，有利于提高建筑物的安全性和耐久性。本文简要介绍了生物体自修复和海洋混凝土自修复的原理；综述了国际有关普通混凝土和海洋混凝土自修复的研究现状；分析了将普通混凝土自修复技术引入海洋混凝土自修复的可行性、目前研究中存在的问题并对未来的发展方向进行了展望。

Abstract: The self-healing of marine concrete is based on the principle of self-healing of the organism after injury. In the concrete, the microbial spores and their carriers are compounded. When the concrete is cracked, the microbe can repair the cracks to heal, restore and even increase the strength of the concrete and prevent harmful ions, such as chlorine ions, erode internal steel and concrete. The marine concrete self-repairing system will save the high cost of concrete repair, save the maintenance cost of the building, and help to improve the safety and durability of the building. This paper briefly introduces the principle of self-healing of marine organisms and self-healing of marine concrete, summarizes the research status of self-healing of common concrete and marine concrete in the world, and analyzes the feasibility of introducing ordinary concrete self-healing technology into self-healing of marine concrete. The problems in the future and the future development direction are forecasted.