A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microbial self-repairing method for tunnel lining concrete cracks
The invention provides a microbial self-repairing method for tunnel lining concrete cracks, and belongs to the technical field of microbiology and civil engineering material crossing. A microbial repairing agent is added into a concrete raw material to prepare tunnel lining concrete. The microbial repairing agent is prepared through the following steps: loading microbes or microbial spores in a carrier to serve as a base core material, immobilizing nutrient substances on the base core material to form a core structure, immobilizing a protective layer on the surface of the core structure, anddrying to obtain the microbial remediation agent, wherein the microbe or microbial spore loading operation is carried out in an environment in which trioctyl phosphate and triallylamine exist. The method can effectively prolong the effective survival time of microbes, has a good self-repairing effect on concrete cracks, and particularly still has a repairing effect of more than 50% on concrete with the cracking width of 0.5 mm or below after 90 days; and the water seepage repairing effect of the concrete is improved, and the impermeability of the repaired concrete is enhanced.
本发明提供一种隧道衬砌混凝土裂缝的微生物自修复方法，属于微生物学和土木工程材料交叉技术领域，包括将微生物修复剂添加进混凝土原料，制得隧道衬砌混凝土；修复剂的制备步骤为：将微生物或微生物芽孢负载在载体中作为基芯材料，然后在基芯材料上固载营养物质形成核结构，最后在核结构表面固载保护层，干燥，即得微生物修复剂；上述微生物或微生物芽孢负载操作在磷酸三辛酯和三烯丙胺存在的环境中进行。本发明提供的方法能有效延长微生物有效存活期，对混凝土裂缝有良好的自修复作用，尤其对90d龄期后开裂宽度在0.5mm以下的混凝土仍具有超过50％的修复效果；提升混凝土的渗水修复效果，增强修复后混凝土抗渗性能。
Microbial self-repairing method for tunnel lining concrete cracks
The invention provides a microbial self-repairing method for tunnel lining concrete cracks, and belongs to the technical field of microbiology and civil engineering material crossing. A microbial repairing agent is added into a concrete raw material to prepare tunnel lining concrete. The microbial repairing agent is prepared through the following steps: loading microbes or microbial spores in a carrier to serve as a base core material, immobilizing nutrient substances on the base core material to form a core structure, immobilizing a protective layer on the surface of the core structure, anddrying to obtain the microbial remediation agent, wherein the microbe or microbial spore loading operation is carried out in an environment in which trioctyl phosphate and triallylamine exist. The method can effectively prolong the effective survival time of microbes, has a good self-repairing effect on concrete cracks, and particularly still has a repairing effect of more than 50% on concrete with the cracking width of 0.5 mm or below after 90 days; and the water seepage repairing effect of the concrete is improved, and the impermeability of the repaired concrete is enhanced.
本发明提供一种隧道衬砌混凝土裂缝的微生物自修复方法，属于微生物学和土木工程材料交叉技术领域，包括将微生物修复剂添加进混凝土原料，制得隧道衬砌混凝土；修复剂的制备步骤为：将微生物或微生物芽孢负载在载体中作为基芯材料，然后在基芯材料上固载营养物质形成核结构，最后在核结构表面固载保护层，干燥，即得微生物修复剂；上述微生物或微生物芽孢负载操作在磷酸三辛酯和三烯丙胺存在的环境中进行。本发明提供的方法能有效延长微生物有效存活期，对混凝土裂缝有良好的自修复作用，尤其对90d龄期后开裂宽度在0.5mm以下的混凝土仍具有超过50％的修复效果；提升混凝土的渗水修复效果，增强修复后混凝土抗渗性能。
Microbial self-repairing method for tunnel lining concrete cracks
一种隧道衬砌混凝土裂缝的微生物自修复方法
WANG JINLIANG (author) / ZHANG YONG (author) / WANG DAOLONG (author) / LI TAO (author) / LAI XIAOYING (author) / HUANG YA'E (author) / SUN HAOMING (author)
2020-04-24
Patent
Electronic Resource
Chinese
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