基于微生物诱导碳酸盐沉淀的混凝土裂缝自愈方法:细菌、固定化、表征和应用

IF 4.7 3区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Journal of Sustainable Cement-Based Materials Pub Date : 2023-10-09 DOI:10.1080/21650373.2023.2263447
Lu Jiang, Pengjun Li, Wenjing Wang, Yu Zhang, Zhu Li
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引用次数: 0

摘要

微生物诱导碳酸盐沉淀(MICP)技术作为一种环保、经济、智能的混凝土裂缝自修复方法,受到了广泛的关注。水泥基体的恶劣使用环境和高碱度对细菌的生存和生长提出了重大挑战,这对混凝土构件中MICP技术的成功至关重要。本文旨在介绍利用MICP技术自愈混凝土裂缝的最新研究现状。具体来说,它全面回顾了矿化修复系统的选择,包括修复机制、效果、过程、营养添加序列和载体选择。此外,探讨了评估混凝土自愈能力的各种表征方法,并对自愈混凝土的实际应用进行了深入分析。最后,本文强调了该技术面临的紧迫问题,同时概述了未来发展的有希望的方向。关键词:micp自愈混凝土载体表征应用作者贡献吕江:方法论,调查,概念化李鹏军:撰写初稿。王文静:写作、审稿、编辑、资金筹措。张宇:写作、审稿、编辑。朱丽:监督、资源、调查。经费由国家自然科学基金项目(no . 52208258、52078473)和宁夏回族自治区自然科学基金项目(no . 2023AAC05011、2022AAC03072)资助。
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A self-healing method for concrete cracks based on microbial-induced carbonate precipitation: bacteria, immobilization, characterization, and application
AbstractMicrobial-induced carbonate precipitation (MICP) technology has gained significant traction as an eco-friendly, cost-effective, and intelligent self-healing method for concrete cracks. The harsh service environment and high alkalinity of cement matrices have posed a significant challenge to the survival and growth of bacteria, which is crucial for the success of MICP technologies in concrete components. This article aims to present an up-to-date overview of the current research status of self-healing concrete cracks utilizing MICP technology. Specifically, it comprehensively reviews the selection of mineralization repair systems, encompassing repair mechanisms, effects, processes, nutrient addition sequences, and carrier selection. Furthermore, various characterization methods for evaluating the self-healing ability of concrete are explored, accompanied by an in-depth analysis of practical applications of self-healing concrete. Finally, this paper highlights the pressing issues facing this technology while outlining promising directions for future advancement.Keywords: MICPself-healing concretecarriercharacterizationapplications Author contributionsLu Jiang: methodology, investigation, conceptualization. Pengjun Li: writing original draft. Wenjing Wang: writing-review and editing, funding acquisition. Yu Zhang: writing-review and editing. Zhu Li: supervision, resources, investigation.Additional informationFundingFunding was provided by the National Natural Science Foundation of China (Nos. 52208258 and 52078473) and Natural Science Foundation of Ningxia Hui Autonomous Region, China (Nos. 2023AAC05011 and 2022AAC03072).
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来源期刊
CiteScore
6.60
自引率
15.90%
发文量
71
期刊介绍: The Journal of Sustainable Cement-Based Materials aims to publish theoretical and applied researches on materials, products and structures that incorporate cement. The journal is a forum for discussion of research on manufacture, hydration and performance of cement-based materials; novel experimental techniques; the latest analytical and modelling methods; the examination and the diagnosis of real cement and concrete structures; and the potential for improved cement-based materials. The journal welcomes original research papers, major reviews, rapid communications and selected conference papers. The Journal of Sustainable Cement-Based Materials covers a wide range of topics within its subject category, including but are not limited to: • raw materials and manufacture of cement • mixing, rheology and hydration • admixtures • structural characteristics and performance of cement-based materials • characterisation techniques and modeling • use of fibre in cement based-materials • degradation and repair of cement-based materials • novel testing techniques and applications • waste management
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