Two-dimensional numerical simulation of the effect of porosity on the compressive strength of concrete
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Từ khóa:
Compressive strength
concrete
porosity
discrete element method
Voronoi tessellation
Tóm tắt
Concrete is widely used in construction due to its versatility, durability, and low cost. Porosity, defined as the ratio of voids, significantly affects compressive strength. This study uses 2D numerical simulations with the discrete element method (DEM) and Voronoi tessellation to model internal voids, examining porosity from 1% to 15%. Results show that porosity strongly influences both compressive strength and strain in concrete. When porosity increases from 3% to 5%, the compressive strength decreases by 13–33%. Notably, at 15% porosity, the compressive strength is reduced by up to 80% compared to the 1% porosity case. Interestingly, both maximum compressive strength and strain show an exponential dependence on porosity. These findings highlight that, in addition to other material properties, porosity is a key factor in determining the compressive strength of concrete. This study aims to enhance understanding of concrete behavior, contributing to improved performance and sustainability in construction.
Tài liệu tham khảo
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Oct 31, 2025
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Nguyen, T. H., và V. H. Nguyen. “Two-Dimensional Numerical Simulation of the Effect of Porosity on the Compressive Strength of Concrete”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 23, số p.h 10C, Tháng Mười 2025, tr 121-5, doi:10.31130/ud-jst.2025.23(10C).676E.
