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Method for curing concrete by utilizing microorganism-induced calcium carbonate deposition technology
The invention discloses a method for curing concrete by utilizing a microorganism induced calcium carbonate deposition technology, which comprises the steps of preparation of bacterial liquid, preparation of cementing liquid, concrete curing and the like, the bacterial liquid is bacillus pasteurii, the components of a culture medium are yeast extract, NH4Cl, nickel chloride and distilled water, and the cementing liquid contains calcium acetate and urea. The invention discloses a concrete curing mode using MICP, after concrete pouring is completed, an MICP mineralizing solution is sprayed on the surface of the concrete, the mineralizing solution is prepared by blending a bacterial solution and a cementing solution, and according to the concrete curing mode, the microorganism mineralizing solution is sprayed on the surface of the poured concrete, and the surface of the concrete is cured. It is predicted that a compact calcium carbonate protection layer can be formed on the surface of the concrete, and the concrete anti-permeability, cracking resistance and chloride ion erosion resistance are greatly improved while water loss in the concrete is prevented.
本发明公开了一种利用微生物诱导碳酸钙沉积技术养护混凝土的方法，包括菌液的配制、胶结液的配制及混凝土养护等步骤，其中菌液为巴氏芽孢杆菌，培养基成分为酵母提取物、NH4Cl和氯化镍和蒸馏水，胶结液含乙酸钙和尿素。本发明公开了一种利用MICP养护混凝土养护方式，在混凝土浇筑完成后在其表面喷涂MICP矿化液，该矿化液由细菌溶液与胶结溶液共混制得，该养护方式通过在浇筑过后的混凝土表面喷涂微生物矿化液，预计可以在其表面形成致密的碳酸钙保护层，在防止混凝土内部水分损失的同时，对混凝土的抗渗性、抗开裂以及抗氯离子侵蚀性能有大幅的改善作用。
Method for curing concrete by utilizing microorganism-induced calcium carbonate deposition technology
The invention discloses a method for curing concrete by utilizing a microorganism induced calcium carbonate deposition technology, which comprises the steps of preparation of bacterial liquid, preparation of cementing liquid, concrete curing and the like, the bacterial liquid is bacillus pasteurii, the components of a culture medium are yeast extract, NH4Cl, nickel chloride and distilled water, and the cementing liquid contains calcium acetate and urea. The invention discloses a concrete curing mode using MICP, after concrete pouring is completed, an MICP mineralizing solution is sprayed on the surface of the concrete, the mineralizing solution is prepared by blending a bacterial solution and a cementing solution, and according to the concrete curing mode, the microorganism mineralizing solution is sprayed on the surface of the poured concrete, and the surface of the concrete is cured. It is predicted that a compact calcium carbonate protection layer can be formed on the surface of the concrete, and the concrete anti-permeability, cracking resistance and chloride ion erosion resistance are greatly improved while water loss in the concrete is prevented.
本发明公开了一种利用微生物诱导碳酸钙沉积技术养护混凝土的方法，包括菌液的配制、胶结液的配制及混凝土养护等步骤，其中菌液为巴氏芽孢杆菌，培养基成分为酵母提取物、NH4Cl和氯化镍和蒸馏水，胶结液含乙酸钙和尿素。本发明公开了一种利用MICP养护混凝土养护方式，在混凝土浇筑完成后在其表面喷涂MICP矿化液，该矿化液由细菌溶液与胶结溶液共混制得，该养护方式通过在浇筑过后的混凝土表面喷涂微生物矿化液，预计可以在其表面形成致密的碳酸钙保护层，在防止混凝土内部水分损失的同时，对混凝土的抗渗性、抗开裂以及抗氯离子侵蚀性能有大幅的改善作用。
Method for curing concrete by utilizing microorganism-induced calcium carbonate deposition technology
一种利用微生物诱导碳酸钙沉积技术养护混凝土的方法
ZHENG YULONG (author) / ZHU HAIPING (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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