Mechanical behavior of porous crushable soils: effect of intragranular porosity

Soils consisting of porous particles, such as pumice sands and calcareous sands, exhibit unique characteristics due to the presence of intraparticle voids. Although significant impacts of intraparticle voids on mechanical behavior, such as reduced single-particle crushing strength and shear modulus...

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Published in:IOP conference series. Earth and environmental science 2023-10, Vol.1249 (1), p.12024
Main Authors: Kurniawan, R, Nghia-Nguyen, T, Kikumoto, M
Format: Article
Language:English
Subjects:
Compression tests
Compressive strength
Mechanical properties
Porosity
Pumice
Sand
Shear modulus
Size distribution
Soil mechanics
Soil porosity
Soils
Specific gravity
Voids
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description Soils consisting of porous particles, such as pumice sands and calcareous sands, exhibit unique characteristics due to the presence of intraparticle voids. Although significant impacts of intraparticle voids on mechanical behavior, such as reduced single-particle crushing strength and shear modulus in pumice sands, have been reported, quantifying the intraparticle porosity is still challenging. Therefore, the previous research has primarily focused on macroscopic behavior, overlooking the influence of intra-particle voids. This study proposes an analytical approach to quantify intraparticle voids based on particle porosity and size distribution. Rigorous validation using specific gravity, sieving analysis, and compression tests strengthens the proposed solution. Our approach enhances understanding of the intra-particle void distribution and its impact on soil behavior.
doi_str_mv 10.1088/1755-1315/1249/1/012024
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subjects Compression tests
Compressive strength
Mechanical properties
Porosity
Pumice
Sand
Shear modulus
Size distribution
Soil mechanics
Soil porosity
Soils
Specific gravity
Voids
title Mechanical behavior of porous crushable soils: effect of intragranular porosity
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