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使用微生物修复混凝土的裂缝:综述

什维 塔·, 阿比 吉特, 苏哈 卡拉, 苏米 特·
印度土木工程系

摘要


混凝土是世界上使用最广泛的建筑材料,事实证明,保持混凝土结构不会过早损坏是一项巨大的挑战。混
凝土结构中微裂纹的早期形成严重影响了可使用性,导致维护成本高。除了用密封剂修复裂缝或用粘合剂化学品处
理混凝土以防止裂缝扩大的传统方法外,微生物裂缝修复方法已显示出有希望的结果。微生物系统的独特之处在于
它能够实现混凝土的自我修复。本综述讨论了微生物诱导碳酸钙沉淀(MICCP)在提高胶凝建筑材料耐久性、石碑
修复和土壤生物堵塞方面的有效性,并强调了基于细菌在修复混凝土结构中的裂缝的潜力以及不同细菌处理在自愈
裂缝中的应用。此外,本次审查还提供了在商业规模上使用MICCP技术和降低应用成本的建议。

关键词


微生物混凝土;自体愈合;自我修复;裂缝愈合;尿素水解;芽孢杆菌

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DOI: http://dx.doi.org/10.12361/2661-3565-03-08-52

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