Sep 2026· Multiscale and Multidisciplinary Modeling Experiments and Design· Vol 9· 0 citations· 66 references
Abstract
Pore structure in concrete is a major factor in water permeability, durability, and strength. Conventional Euclidean approaches fail to characterize the complexity of the cement pore structure. In this research, fractal analysis is used to demonstrate microscopic pore properties and fluid transport in concrete. Two fractal dimensions are introduced: the pore surface area (Df) and the fractal dimension of the tortuosity of the flow path (Dt), which represent the evolution of the pore structure during hydration. Type II Portland cement concrete was tested for water permeability at 7, 28, and 90 days of curing using a 150 mm side dimension cube specimen and the cylindrical chamber method. Water permeability volumes measured 18.86, 15.82, and 11.97 mL, reflecting a decrease of 16.1 and 24.3% each time. Mercury Intrusion Porosimetry (MIP) analysis of pore structure improved the fractal permeability model. The results show that both Df and Dt increase with curing time, indicating more tortuosity and pore surface area.
The pore structure and connectivity of coal directly control fluid storage and migration and provide an important basis for evaluating coal-seam permeability and gas-drainage performance. To quantitatively characterise the pore structure of anthracite and improve the accuracy of permeability prediction, anthracite from...
Zhi-Jun Liu, Bin Zhang, Hao-Tian Ma· Processes· 0 citations
The application of permeable backfill made of construction waste could maintain effectively regional hydrogeology balance and reduce land occupation. The study analyzed the relationships of permeability coefficient, porosity, fractal dimension and strength of non-cemented and cemented construction waste backfill by per...
Ya-Jun Xin, Long-Fei Gao, Hong-Ying Ji et al.· Scientific Reports· 0 citations
Introduction.
Foam concrete is a complex highly porous system, the structuring process of which (sol-gel transition) determines its physical, mechanical, and operational characteristics. Fractal percolation theory is a modern tool for describing and modeling the formation of the fractal pore structure and the cement...
A. Savenkov, R. Fediuk, G. Fediuk· Concrete and Reinforced Conc...· 0 citations
Grain size constitutes a principal determinant of the petrophysical attributes of porous media,
with particular relevance to porosity, the primary parameter governing fluid storage and
transmissibility in petroleum reservoirs. This study systematically examined the grain-size
porosity relationship in laboratory-fabri...
Kuradoite G. Sagbe· International Journal of Eng...· 0 citations
Pore systems within different pore size intervals in shale reservoirs exhibit heterogeneity in surface roughness and structure, which can be quantitatively characterized by fractal dimensions. To quantitatively characterize the pore structure characteristics, six Longmaxi shale samples were collected from the southern...
Yue-Jun Song, Hui-Jian Wen, Bing Jiang et al.· Fractal and Fractional· 0 citations
Porous asphalt mixtures (PAC) with high connectivity porosity can significantly reduce surface runoff and play a more critical role in sustainable paving. This study investigated the permeability performance of PAC-13 porous asphalt mixtures with three target porosities and four design-density levels using computationa...
Chen-Long Zhang, Cong-Ling Bao, Xu He et al.· Modelling· 0 citations
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