A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Crack self-repairing cement-based material and preparation method thereof
The invention discloses a crack self-repairing cement-based material based on bacillus pasteurii mineralization deposition and a preparation method, the crack self-repairing cement-based material comprises a cement base material, a premix I and a premix II, the premix I comprises urease-producing bacteria adsorbing calcium ions and a carrier, and the premix II comprises urease-producing bacteria not adsorbing calcium ions and a carrier. Diatomite loaded with microorganisms is divided into two parts, one part is diatomite loaded with microorganisms which do not adsorb calcium ions in advance, and the other part is diatomite loaded with microorganisms which adsorb calcium ions in advance. Therefore, it can be ensured that cracks are repaired in time after the cement-based material is cracked, and the durability of the repaired cement-based material can be improved. The prepared crack self-repairing regenerated cement-based material based on bacillus pasteurii mineralization deposition is a green and environment-friendly regenerated cement-based material with crack self-diagnosis and self-repairing functions, and meets the requirements of current economic society on green, environment-friendly and intelligent building materials.
本发明公开了一种基于巴氏芽孢杆菌矿化沉积的裂缝自修复水泥基材料及制备方法，包含水泥基材、预混物一和预混物二，所述预混物一包含已吸附钙离子的产脲酶菌和载体，所述预混物二包含未吸附钙离子的产脲酶菌和载体。本发明将负载微生物的硅藻土分为两部分，一部分为硅藻土负载未提前吸附钙离子的微生物，而另一部分为硅藻土负载提前吸附钙离子的微生物。从而，既能够确保水泥基材料开裂后裂缝得到及时修复，又能提高修复后的水泥基材料的耐久性能。本发明制备的基于巴氏芽孢杆菌矿化沉积的裂缝自修复再生水泥基材料是一种兼具裂缝自诊断和自修复，绿色环保的再生水泥基材料，符合当前经济社会对建筑材料绿色、环保和智能的要求。
Crack self-repairing cement-based material and preparation method thereof
The invention discloses a crack self-repairing cement-based material based on bacillus pasteurii mineralization deposition and a preparation method, the crack self-repairing cement-based material comprises a cement base material, a premix I and a premix II, the premix I comprises urease-producing bacteria adsorbing calcium ions and a carrier, and the premix II comprises urease-producing bacteria not adsorbing calcium ions and a carrier. Diatomite loaded with microorganisms is divided into two parts, one part is diatomite loaded with microorganisms which do not adsorb calcium ions in advance, and the other part is diatomite loaded with microorganisms which adsorb calcium ions in advance. Therefore, it can be ensured that cracks are repaired in time after the cement-based material is cracked, and the durability of the repaired cement-based material can be improved. The prepared crack self-repairing regenerated cement-based material based on bacillus pasteurii mineralization deposition is a green and environment-friendly regenerated cement-based material with crack self-diagnosis and self-repairing functions, and meets the requirements of current economic society on green, environment-friendly and intelligent building materials.
本发明公开了一种基于巴氏芽孢杆菌矿化沉积的裂缝自修复水泥基材料及制备方法，包含水泥基材、预混物一和预混物二，所述预混物一包含已吸附钙离子的产脲酶菌和载体，所述预混物二包含未吸附钙离子的产脲酶菌和载体。本发明将负载微生物的硅藻土分为两部分，一部分为硅藻土负载未提前吸附钙离子的微生物，而另一部分为硅藻土负载提前吸附钙离子的微生物。从而，既能够确保水泥基材料开裂后裂缝得到及时修复，又能提高修复后的水泥基材料的耐久性能。本发明制备的基于巴氏芽孢杆菌矿化沉积的裂缝自修复再生水泥基材料是一种兼具裂缝自诊断和自修复，绿色环保的再生水泥基材料，符合当前经济社会对建筑材料绿色、环保和智能的要求。
Crack self-repairing cement-based material and preparation method thereof
一种裂缝自修复水泥基材料及制备方法
QIAN CHUNXIANG (author) / ZHOU YUQI (author) / ZHANG KAIYUN (author) / REN XIN (author)
2023-09-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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