Analysis of the breakage of the bio-cementation generated on glass beadsduring a direct shear test using a DEM model
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F24%3A43898613" target="_blank" >RIV/44555601:13440/24:43898613 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s40571-024-00803-1" target="_blank" >https://link.springer.com/article/10.1007/s40571-024-00803-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s40571-024-00803-1" target="_blank" >10.1007/s40571-024-00803-1</a>
Alternative languages
Result language
angličtina
Original language name
Analysis of the breakage of the bio-cementation generated on glass beadsduring a direct shear test using a DEM model
Original language description
The improvement of soil behaviour by the bacterial precipitation of calcium carbonate has been extensively studied in geotechnical engineering. However, the evolution of bio-cementation bonds under shear conditions is only partially understood. This research presents a micromechanical approach to gain a deeper insight into the interaction between bio-cemented particles. A series of glass bead samples were treated with Microbial Induced Calcite Precipitation (MICP) and then subjected to direct shear tests. A calibrated model based on the Discrete Element Method was used to reproduce the macro-mechanical paths observed in the experiments, allowing the detailed analysis and description of the bond evolution at the microscopic scale in the treated samples. In general, it was found that a higher rate of bond breakage occurred before the peak shear strength was reached, and this was followed by a relatively constant rate of bond breakage associated with a macroscopic softening trend. Tensile stress was identified as the primary fracture mechanism. Finally, it was determined that the bond breakage mechanism is influenced by several factors, such as bond distribution, particle array, and the mechanical parameters of the bond.
Czech name
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Czech description
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Classification
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
10505 - Geology
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Computational Particle Mechanics
ISSN
2196-4378
e-ISSN
2196-4386
Volume of the periodical
2024
Issue of the periodical within the volume
"necislovano"
Country of publishing house
CH - SWITZERLAND
Number of pages
20
Pages from-to
"nestrankovano"
UT code for WoS article
001278186100001
EID of the result in the Scopus database
2-s2.0-85199986376