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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Autores principales:	Lian Songsong, Meng Tao, Song Hongqi, Wang Zhongjia, Li Jiabin
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	x-ray computed tomography percolation mechanism pore characteristics Technology T Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/345ddcbb1a9b4494bf74ab29b97f78a5
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id	oai:doaj.org-article:345ddcbb1a9b4494bf74ab29b97f78a5
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spelling	oai:doaj.org-article:345ddcbb1a9b4494bf74ab29b97f78a52021-12-05T14:11:02ZRelationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography1605-812710.1515/rams-2021-0022https://doaj.org/article/345ddcbb1a9b4494bf74ab29b97f78a52021-05-01T00:00:00Zhttps://doi.org/10.1515/rams-2021-0022https://doaj.org/toc/1605-8127The 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.Lian SongsongMeng TaoSong HongqiWang ZhongjiaLi JiabinDe Gruyterarticlex-ray computed tomographypercolation mechanismpore characteristicsTechnologyTChemical technologyTP1-1185ENReviews on Advanced Materials Science, Vol 60, Iss 1, Pp 207-215 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	x-ray computed tomography percolation mechanism pore characteristics Technology T Chemical technology TP1-1185
spellingShingle	x-ray computed tomography percolation mechanism pore characteristics Technology T Chemical technology TP1-1185 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
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.
format	article
author	Lian Songsong Meng Tao Song Hongqi Wang Zhongjia Li Jiabin
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
publishDate	2021
url	https://doaj.org/article/345ddcbb1a9b4494bf74ab29b97f78a5
work_keys_str_mv	AT liansongsong relationshipbetweenpercolationmechanismandporecharacteristicsofrecycledpermeablebricksbasedonxraycomputedtomography AT mengtao relationshipbetweenpercolationmechanismandporecharacteristicsofrecycledpermeablebricksbasedonxraycomputedtomography AT songhongqi relationshipbetweenpercolationmechanismandporecharacteristicsofrecycledpermeablebricksbasedonxraycomputedtomography AT wangzhongjia relationshipbetweenpercolationmechanismandporecharacteristicsofrecycledpermeablebricksbasedonxraycomputedtomography AT lijiabin relationshipbetweenpercolationmechanismandporecharacteristicsofrecycledpermeablebricksbasedonxraycomputedtomography
_version_	1718371468409044992

Relationship between percolation mechanism and pore characteristics of recycled permeable bricks based on X-ray computed tomography

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