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A platform for research: civil engineering, architecture and urbanism
MICROCAPSULE OF SUSTAINABLE SELF-HEALING COAL MINE VENTILATION SEALING MATERIAL CRACK AND PREPARATION METHOD THEREOF
A microcapsule of sustainable self-healing coal mine ventilation sealing material crack. The microcapsule includes a microcapsule core material and a microcapsule wall material. The microcapsule core material is prepared using a bacterial lyophilized powder and a substrate. By using urease-producing bacteria, there is provided a method of protecting bacteria to survive a long time in the cement-based material, supplying sufficient nutrient substances and reducing the impact of the doping of bacteria on the mechanical property of the cement-based material. The bacterial lyophilized powder and substrate are prepared into microcapsules which are added into the cement-based material when the cement-based material is mixed. In this case, once concrete cracks, the microcapsules breaks and the spores in the material are activated to perform normal metabolism so as to induce precipitation of calcium carbonate continuously, thereby continuously realizing self-healing of coal mine ventilation sealing material cracks.
MICROCAPSULE OF SUSTAINABLE SELF-HEALING COAL MINE VENTILATION SEALING MATERIAL CRACK AND PREPARATION METHOD THEREOF
A microcapsule of sustainable self-healing coal mine ventilation sealing material crack. The microcapsule includes a microcapsule core material and a microcapsule wall material. The microcapsule core material is prepared using a bacterial lyophilized powder and a substrate. By using urease-producing bacteria, there is provided a method of protecting bacteria to survive a long time in the cement-based material, supplying sufficient nutrient substances and reducing the impact of the doping of bacteria on the mechanical property of the cement-based material. The bacterial lyophilized powder and substrate are prepared into microcapsules which are added into the cement-based material when the cement-based material is mixed. In this case, once concrete cracks, the microcapsules breaks and the spores in the material are activated to perform normal metabolism so as to induce precipitation of calcium carbonate continuously, thereby continuously realizing self-healing of coal mine ventilation sealing material cracks.
MICROCAPSULE OF SUSTAINABLE SELF-HEALING COAL MINE VENTILATION SEALING MATERIAL CRACK AND PREPARATION METHOD THEREOF
HU XIANGMING (author) / CHENG WEIMIN (author) / WU MINGYUE (author) / ZHAO YANYUN (author) / XUE DI (author)
2021-05-13
Patent
Electronic Resource
English
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