Ureolytic bacteria-assisted recycling of waste concrete fines

Holeček, P.; Kliková, K.; Koňáková, D.; Stiborová, H.; Nežerka, V.

doi:10.1016/j.powtec.2023.119310

Powder Technology

2024

DOI: 10.1016/j.powtec.2023.119310

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Ureolytic bacteria-assisted recycling of waste concrete fines

P. Holeček,

K. Kliková,

D. Koňáková

et al.

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2024

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Cited by 6 publications

References 57 publications

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Exploring Porosity’s Role in Stiffening Waste Concrete Conglomerates Synthesized with Microbial Calcite: A Micromechanical Analysis

Holeček,

Nežerka,

Kliková

et al. 2024

Waste Biomass Valor

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Amidst environmental challenges, this study utilizes the innovative method of microbially-induced calcite precipitation (MICP) to explore its application in recycling waste concrete fines (WCF). Specifically, we scrutinize the role of porosity in the mechanical behavior of MICP-cemented WCF conglomerates. Through a series of indentation tests, the study provides force-displacement relationships from which the stiffness of the samples is calculated. The Young’s modulus of the samples is then estimated using Sneddon’s solution, which assumes a conical indenter and homogeneous elastic behavior. Subsequently, the Mori–Tanaka scheme with Eshelby’s solution is employed to predict the Young’s modulus of the samples with different porosity, allowing a comparison with the calculated stiffness. This work contributes to the understanding of the role of porosity in the mechanical behavior of MICP-cemented WCF specimens and offers a pathway for optimizing the production process of such materials. Graphical Abstract

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Exploring Porosity’s Role in Stiffening Waste Concrete Conglomerates Synthesized with Microbial Calcite: A Micromechanical Analysis

Holeček,

Nežerka,

Kliková

et al. 2024

Waste Biomass Valor

View full text Add to dashboard Cite

show abstract

Quantification techniques of self-healing concrete using ureolytic bacteria: a review

Gunwant

2024

emergent mater.

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Microbial-induced carbonate precipitation using eggshells and scallop shells as recycled materials

Raheem,

Khadim

2024

Case Studies in Chemical and Environmental Engineering

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Ureolytic bacteria-assisted recycling of waste concrete fines

Cited by 6 publications

References 57 publications

Exploring Porosity’s Role in Stiffening Waste Concrete Conglomerates Synthesized with Microbial Calcite: A Micromechanical Analysis

Exploring Porosity’s Role in Stiffening Waste Concrete Conglomerates Synthesized with Microbial Calcite: A Micromechanical Analysis

Quantification techniques of self-healing concrete using ureolytic bacteria: a review

Microbial-induced carbonate precipitation using eggshells and scallop shells as recycled materials

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