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Tensile Strength and Fracture of Interparticle MICP Bonds
https://orcid.org/0009-0002-7928-1134
Microbially induced calcium carbonate precipitation (MICP) is a novel cementation technique. The improved responses of biotreated soils are mainly attributed to interparticle MICP bonds and have been extensively studied by element-scale tests. However, the particle-scale mechanism of MICP bonds has not been fully understood, especially when considering the discrepancy in particle morphology. In this paper, we carried out a series of particle-scale tensile tests on biotreated quartz sands and glass beads and found that tensile strength of the MICP bonds increased with an increase in cementation level or a decrease in regularity of particle shape. We also interpreted the statistical distribution of the tensile strength and tensile failure modes. The results of this study could provide a solid base for theoretic modeling of biotreated soils.
Tensile Strength and Fracture of Interparticle MICP Bonds
https://orcid.org/0009-0002-7928-1134
Microbially induced calcium carbonate precipitation (MICP) is a novel cementation technique. The improved responses of biotreated soils are mainly attributed to interparticle MICP bonds and have been extensively studied by element-scale tests. However, the particle-scale mechanism of MICP bonds has not been fully understood, especially when considering the discrepancy in particle morphology. In this paper, we carried out a series of particle-scale tensile tests on biotreated quartz sands and glass beads and found that tensile strength of the MICP bonds increased with an increase in cementation level or a decrease in regularity of particle shape. We also interpreted the statistical distribution of the tensile strength and tensile failure modes. The results of this study could provide a solid base for theoretic modeling of biotreated soils.
Tensile Strength and Fracture of Interparticle MICP Bonds
https://orcid.org/0009-0002-7928-1134
Microbially induced calcium carbonate precipitation (MICP) is a novel cementation technique. The improved responses of biotreated soils are mainly attributed to interparticle MICP bonds and have been extensively studied by element-scale tests. However, the particle-scale mechanism of MICP bonds has not been fully understood, especially when considering the discrepancy in particle morphology. In this paper, we carried out a series of particle-scale tensile tests on biotreated quartz sands and glass beads and found that tensile strength of the MICP bonds increased with an increase in cementation level or a decrease in regularity of particle shape. We also interpreted the statistical distribution of the tensile strength and tensile failure modes. The results of this study could provide a solid base for theoretic modeling of biotreated soils.
Tensile Strength and Fracture of Interparticle MICP Bonds
Int. J. Geomech.
Xiao, Yang (author) / Yan, Jiang (author) / Wu, Huanran (author) / Zaman, Musharraf (author)
2024-10-01
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2017