Experimental analysis of biocementation technique for sealing cracks in concrete water storage tanks

Cardoso, Rafaela; Scholler, Lucca; Pinto, Mariana M.; Flores-Colen, Inês; Covas, Dídia

doi:10.1016/j.conbuildmat.2023.134854

Construction and Building Materials

2024

DOI: 10.1016/j.conbuildmat.2023.134854

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Experimental analysis of biocementation technique for sealing cracks in concrete water storage tanks

Rafaela Cardoso,

Lucca Scholler,

Mariana M. Pinto

et al.

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2024

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Cited by 4 publications

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Conventional and ferrocement-based hybrid design of RCC tanks: a comparative study

Saxena,

Pathak

2024

Innov. Infrastruct. Solut.

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Conventional and ferrocement-based hybrid design of RCC tanks: a comparative study

Saxena,

Pathak

2024

Innov. Infrastruct. Solut.

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Repair of undersea concrete using biopolymer-assisted plant urease

Li,

Hu,

Feng

et al. 2024

Journal of Building Engineering

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Investigation of the effect of urease bioadditives on porosity and water absorption of cement composites

Goncharova,

Dergunova,

Sverdlov

et al. 2024

Construction Materials

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The results of the application of the biomineralization process in concrete to improve concrete properties such as porosity and water absorption are presented. As a result of the research, an assessment of the activity of various bioadditives based on the Bacillus subtilis strain and isolates isolated from samples of chernozem soil of the Yelets district of the Lipetsk region was given.It was found that the immobilized bacteria slightly differ from the native form in terms of urease activity, however, when stored for more than 50 days. they maintain their activity at a high level, and native microorganisms lose their ability to function, reducing urease activity by 10 times practically to minimum values. It was also revealed that when using Portland cement of various types, there is a decrease in water absorption up to 30%, and porosity decreases up to 40%.The use of different types of fine aggregate also affects porosity, so when using the same parts of sand P1 and P2, porosity is lower than with a homogeneous fine aggregate.It was also noted that all samples had increased strength characteristics – compressive strength and bending strength by 15–25%, respectively. Thus, the use of bioadditives is optimal to achieve improved concrete characteristics.

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Experimental analysis of biocementation technique for sealing cracks in concrete water storage tanks

Cited by 4 publications

References 20 publications

Conventional and ferrocement-based hybrid design of RCC tanks: a comparative study

Conventional and ferrocement-based hybrid design of RCC tanks: a comparative study

Repair of undersea concrete using biopolymer-assisted plant urease

Investigation of the effect of urease bioadditives on porosity and water absorption of cement composites

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