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X-ray analysis on the effect of sample preparation on the microstructure of calcareous sands

Jinquan Shi (UGent) , Wim Haegeman (UGent) , Arjen Mascini (UGent) and Veerle Cnudde (UGent)
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Abstract
The behavior of a sandy soil in laboratory tests is highly influenced by the sedimentation technique. In this study, a calcareous sand from the reclamation site in Persian Gulf is used as the material to reconstruct laboratory scale samples with the air and water pluviation, moist and dry tamping and dry funnel deposition methods. The microstructure of these calcareous sand samples, including the homogeneity and the spatial consistency of the fabric anisotropy, is examined using X-ray tomography. It is shown that the sample preparation method introduces distinct differences in the sample uniformity and the spatial fabric anisotropy. The sample density varies along the sample height and is highly affected by the boundary effect. The fabric anisotropy is proved to have spatial consistency except for the sample made by the water pluviation method. In the water pluviation sample, the boundary effect on the fabric anisotropy is significant, which is explained by the grain-water interaction during the sedimentation.
Keywords
Geotechnical Engineering and Engineering Geology, Ocean Engineering, Oceanography, Sediments, sample preparation method, fabric anisotropy, x-ray tomography, LOCALIZED DEFORMATION, TRIAXIAL COMPRESSION, CT, ANISOTROPY, BEHAVIOR, WATER

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MLA
Shi, Jinquan, et al. “X-Ray Analysis on the Effect of Sample Preparation on the Microstructure of Calcareous Sands.” MARINE GEORESOURCES & GEOTECHNOLOGY, vol. 39, no. 3, 2021, pp. 302–11, doi:10.1080/1064119x.2019.1698680.
APA
Shi, J., Haegeman, W., Mascini, A., & Cnudde, V. (2021). X-ray analysis on the effect of sample preparation on the microstructure of calcareous sands. MARINE GEORESOURCES & GEOTECHNOLOGY, 39(3), 302–311. https://doi.org/10.1080/1064119x.2019.1698680
Chicago author-date
Shi, Jinquan, Wim Haegeman, Arjen Mascini, and Veerle Cnudde. 2021. “X-Ray Analysis on the Effect of Sample Preparation on the Microstructure of Calcareous Sands.” MARINE GEORESOURCES & GEOTECHNOLOGY 39 (3): 302–11. https://doi.org/10.1080/1064119x.2019.1698680.
Chicago author-date (all authors)
Shi, Jinquan, Wim Haegeman, Arjen Mascini, and Veerle Cnudde. 2021. “X-Ray Analysis on the Effect of Sample Preparation on the Microstructure of Calcareous Sands.” MARINE GEORESOURCES & GEOTECHNOLOGY 39 (3): 302–311. doi:10.1080/1064119x.2019.1698680.
Vancouver
1.
Shi J, Haegeman W, Mascini A, Cnudde V. X-ray analysis on the effect of sample preparation on the microstructure of calcareous sands. MARINE GEORESOURCES & GEOTECHNOLOGY. 2021;39(3):302–11.
IEEE
[1]
J. Shi, W. Haegeman, A. Mascini, and V. Cnudde, “X-ray analysis on the effect of sample preparation on the microstructure of calcareous sands,” MARINE GEORESOURCES & GEOTECHNOLOGY, vol. 39, no. 3, pp. 302–311, 2021.
@article{8638322,
  abstract     = {{The behavior of a sandy soil in laboratory tests is highly influenced by the sedimentation technique. In this study, a calcareous sand from the reclamation site in Persian Gulf is used as the material to reconstruct laboratory scale samples with the air and water pluviation, moist and dry tamping and dry funnel deposition methods. The microstructure of these calcareous sand samples, including the homogeneity and the spatial consistency of the fabric anisotropy, is examined using X-ray tomography. It is shown that the sample preparation method introduces distinct differences in the sample uniformity and the spatial fabric anisotropy. The sample density varies along the sample height and is highly affected by the boundary effect. The fabric anisotropy is proved to have spatial consistency except for the sample made by the water pluviation method. In the water pluviation sample, the boundary effect on the fabric anisotropy is significant, which is explained by the grain-water interaction during the sedimentation.}},
  author       = {{Shi, Jinquan and Haegeman, Wim and Mascini, Arjen and Cnudde, Veerle}},
  issn         = {{1064-119X}},
  journal      = {{MARINE GEORESOURCES & GEOTECHNOLOGY}},
  keywords     = {{Geotechnical Engineering and Engineering Geology,Ocean Engineering,Oceanography,Sediments,sample preparation method,fabric anisotropy,x-ray tomography,LOCALIZED DEFORMATION,TRIAXIAL COMPRESSION,CT,ANISOTROPY,BEHAVIOR,WATER}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{302--311}},
  title        = {{X-ray analysis on the effect of sample preparation on the microstructure of calcareous sands}},
  url          = {{http://dx.doi.org/10.1080/1064119x.2019.1698680}},
  volume       = {{39}},
  year         = {{2021}},
}

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