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Microbial-Sodium Alginate Based External Repair Materials and Their Synergistic Effect on Crack Repair
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Hui RONG1, 2, Yuting CHEN1, Jinrui ZHANG3, Lei ZHANG1, Dee LIU1, Ying ZHANG1, Yang FENG1, Jianyun WANG4
Journal of the Chinese Ceramic Society | 2022, 50(8) : 2087 - 2095
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Journal of the Chinese Ceramic Society | 2022, 50(8): 2087-2095
• Research Articles •
Microbial-Sodium Alginate Based External Repair Materials and Their Synergistic Effect on Crack Repair
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Hui RONG1, 2, Yuting CHEN1, Jinrui ZHANG3, Lei ZHANG1, Dee LIU1, Ying ZHANG1, Yang FENG1, Jianyun WANG4
Affiliations
  • 1.School of Materials Science and Engineering, Tianjin ChengJian University, Tianjin 300384, China
  • 2.Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384, China
  • 3.State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
  • 4.School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China

    • RONG Hui (1983-), male, Professor. E-mail:

About Author:

RONG Hui (1983-), male, Professor. E-mail:

Published: 2022-08-20 doi: 10.14062/j.issn.0454-5648.20210855
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To address the technical challenge of the slow repair rate of microbial-based exo-remediation materials, microbial-sodium alginate exo-remediation materials were prepared by adding different concentrations (0.0%, 0.5%, 1.0%, 1.5% and 2.0%) of sodium alginate to the existing microbial exo-remediation material, and analyzed their properties and synergistic exo-remediation effect. The results show that the viscosity of the microbial-sodium alginate exo-remediation materials increases, while the flow rate decreases as sodium alginate concentration increases; the repair product formed by the microbial-sodium alginate external repair material is white in color and has a certain elasticity, and the composition of the repair product is mainly calcium carbonate, while the calcium alginate gel formed is filled in the gaps between calcium carbonate particles; and for different crack widths, the microbial calcium alginate hydrogel formed by microbial-sodium alginate external repair material can achieve instant plugging, resulting in a lower water penetration coefficient and a higher compressive strength. In particular, the optimum repair effect for 1.0 mm cracks can be achieved at a sodium alginate concentration of 0.5%, which reduces the water penetration coefficient from 9.76 to 0 under a maintained water pressure of 1 kPa, and achieves a strength recovery rate at 7 d of 22.7%.

microorganism  /  sodium alginate  /  concrete  /  crack repair
荣辉, 陈禹廷, 张津瑞, 张磊, 刘德娥, 张颖, 冯阳, 王剑云. 基于微生物-海藻酸钠的外修复材料及其协同修复裂缝效果. 硅酸盐学报, 2022 , 50 (8) : 2087 -2095 . DOI: 10.14062/j.issn.0454-5648.20210855
Hui RONG, Yuting CHEN, Jinrui ZHANG, Lei ZHANG, Dee LIU, Ying ZHANG, Yang FENG, Jianyun WANG. Microbial-Sodium Alginate Based External Repair Materials and Their Synergistic Effect on Crack Repair[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (8) : 2087 -2095 . DOI: 10.14062/j.issn.0454-5648.20210855
Appendix
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Year 2022 volume 50 Issue 8
34
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Article Info
doi: 10.14062/j.issn.0454-5648.20210855
  • Receive Date：2021-10-04
  • Online Date：2026-10-20
  • Published：2022-08-20
Article Data
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History
  • Received：2021-10-04
  • Revised：2021-11-24
Funding
Affiliations
    1.School of Materials Science and Engineering, Tianjin ChengJian University, Tianjin 300384, China
    2.Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384, China
    3.State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
    4.School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Corresponding:

ZHANG Jinrui (1989-), male, Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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