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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F24%3A43929020" target="_blank" >RIV/60461373:22330/24:43929020 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s12649-024-02486-4" target="_blank" >https://link.springer.com/article/10.1007/s12649-024-02486-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s12649-024-02486-4" target="_blank" >10.1007/s12649-024-02486-4</a>

Result language
angličtina
Original language name
Exploring Porosity's Role in Stiffening Waste Concrete Conglomerates Synthesized with Microbial Calcite: A Micromechanical Analysis
Original language description
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. [GRAPHICS] .
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology

Project
<a href="/en/project/GA22-02702S" target="_blank" >GA22-02702S: Microbiologically induced calcite precipitation for production of carbon-negative building materials from recycled concrete</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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