Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography
The relationship between percolation mechanism and pore characteristics for recycled permeable bricks with different porosities is investigated in this study based on X-ray computed tomography (X-CT). Permeability coefficients are measured and some characteristics including size, amount, and distrib...
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Online Access: | https://doi.org/10.1515/rams-2021-0022 |
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doaj-345ddcbb1a9b4494bf74ab29b97f78a52021-10-03T07:42:43ZengDe GruyterReviews on Advanced Materials Science1605-81272021-05-0160120721510.1515/rams-2021-0022Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomographyLian Songsong0Meng Tao1Song Hongqi2Wang Zhongjia3Li Jiabin4College of Civil Engineering and Architecture, Zhejiang University, Hangzhou310058, ChinaCollege of Civil Engineering and Architecture, Zhejiang University, Hangzhou310058, ChinaShanxi Sixth Construction Group CO., LTD, Taiyuan030024, ChinaCollege of Civil Engineering and Architecture, Zhejiang University, Hangzhou310058, ChinaMaterials and Constructions, Bruges Campus, Faculty of Engineering Technology, KU Leuven, BelgiumThe relationship between percolation mechanism and pore characteristics for recycled permeable bricks with different porosities is investigated in this study based on X-ray computed tomography (X-CT). Permeability coefficients are measured and some characteristics including size, amount, and distribution of the pore are analysed. The results show that the effective porosity and permeability coefficient of the recycled permeable bricks exhibit a linear relationship first and then a quadratic curve relationship, where the critical effective porosity is 12%. Meanwhile, we discovered that nonlinear channels in permeable bricks are larger and fewer compared with linear percolation channels, regardless of whether the percolation stage is linear or nonlinear. Additionally, when the area and number ratios of the linear and nonlinear percolation channels reached 80% and 10%, respectively, the overall percolation state of the permeable bricks changed from linear to nonlinear percolation. This research is helpful to improve the mechanical and percolation properties of recycled concrete bricks and promote the application of porous permeable material.https://doi.org/10.1515/rams-2021-0022x-ray computed tomographypercolation mechanismpore characteristics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lian Songsong Meng Tao Song Hongqi Wang Zhongjia Li Jiabin |
spellingShingle |
Lian Songsong Meng Tao Song Hongqi Wang Zhongjia Li Jiabin Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography Reviews on Advanced Materials Science x-ray computed tomography percolation mechanism pore characteristics |
author_facet |
Lian Songsong Meng Tao Song Hongqi Wang Zhongjia Li Jiabin |
author_sort |
Lian Songsong |
title |
Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography |
title_short |
Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography |
title_full |
Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography |
title_fullStr |
Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography |
title_full_unstemmed |
Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography |
title_sort |
relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on x-ray computed tomography |
publisher |
De Gruyter |
series |
Reviews on Advanced Materials Science |
issn |
1605-8127 |
publishDate |
2021-05-01 |
description |
The relationship between percolation mechanism and pore characteristics for recycled permeable bricks with different porosities is investigated in this study based on X-ray computed tomography (X-CT). Permeability coefficients are measured and some characteristics including size, amount, and distribution of the pore are analysed. The results show that the effective porosity and permeability coefficient of the recycled permeable bricks exhibit a linear relationship first and then a quadratic curve relationship, where the critical effective porosity is 12%. Meanwhile, we discovered that nonlinear channels in permeable bricks are larger and fewer compared with linear percolation channels, regardless of whether the percolation stage is linear or nonlinear. Additionally, when the area and number ratios of the linear and nonlinear percolation channels reached 80% and 10%, respectively, the overall percolation state of the permeable bricks changed from linear to nonlinear percolation. This research is helpful to improve the mechanical and percolation properties of recycled concrete bricks and promote the application of porous permeable material. |
topic |
x-ray computed tomography percolation mechanism pore characteristics |
url |
https://doi.org/10.1515/rams-2021-0022 |
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