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  Fractal breakage of porous carbonate sand particles: …

  202031 · Abstract. In situ, three-dimensional (3D) characterizations of particle breakage in porous carbonate sands are presented, for the first time, with synchrotron-based micro computed tomography. Evolution of grain-scale characteristics are identified and quantified via elaborate image processing and topology analyses.

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  Influence of fine content on undrained monotonic behavior of carbonate sand

  2023428 · For this purpose, 30 undrained monotonic triaxial tests were performed on carbonate sand with silt ranges of 0% to 40% with two different void ratios. According to the results, the undrained shear strength of carbonate sand diminished with the addition of silt percentage up to 20%, and increased dramatically at 30% silt content.

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  Single-particle crushing behaviour of carbonate sands …

  202225 · This paper investigates the particle breakage behaviour of a carbonate sand based on single-particle compression experiments with in situ X-ray microtomography scanning (μCT) and a combined finite–discrete element method (FDEM). Specifically, X-ray μCT is applied to extract the information on grain morphology and intra-particle pores of …

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  An investigation of the breakage behaviour of a pre-crushed carbonate ...

  2021724 · Single-particle crushing behaviour of carbonate sands studied by X-ray microtomography and a combined finite–discrete element method Bo-Yu Zhou Quan Ku C. Li Huabin Wang Youkou Dong Zhuang Cheng Materials Science, Engineering Acta Geotechnica 2022 This paper investigates the particle breakage behaviour of a carbonate …

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  Quantification of the morphology of shelly carbonate sands …

  This paper presents a three-dimensional characterisation of the morphology of shelly carbonate sands based on analyses of X-ray computed tomography images. Two sands from the Persian Gulf with distinct grading were investigated. An adaptive watershed segmentation technique was developed to identify the individual grains for subsequent …

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  Proposition of correlations for the dynamic …

  20231226 · In order to respond to the greenhouse effect and achieve sustainable development, microbial-induced carbonate precipitation (MICP) technology based on the spraying method was used as a substitute for Portland cement to reinforce calcareous sand. In order to simulate the tide and determine the suitable concentration, the effects of the …

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  The mechanics of uncemented carbonate sands | Semantic …

  1990121 · The mechanics of uncemented carbonate sands. The mechanical behaviour of a typical biogenic carbonate sand was investigated using triaxial testing at standard and also at high pressures up to 8 MPa. The test results show that despite the particle breakage which is characteristic of these soils, their behaviour is still qualitatively …

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  Image based simulation of one-dimensional compression …

  20181126 · High factors of safety and conservative methods are commonly used on foundation design on shelly carbonate soils. A better understanding of the behavior of this material is, thus, critical for more sustainable approaches for the design of a number of offshore structures and submarine pipelines. In particular, understanding the physical …

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  Particle classification and intra-particle pore structure of carbonate ...

  20201220 · The other important distinction is that the particles of carbonate sands always have abundant intra-particle pores, whereas those of quartz sands always remain intact with very few flaws. These two important features of carbonate sands result in a loose fabric with a higher pore ratio than that of quartz sands.

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