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Correlations between air permeability coefficients and pore structure indicators of cementitious materials
https://orcid.org/0000-0002-6726-2609
Highlights Air permeability and pore structure of cementitious materials are closely related. Data from reports on air permeability and porosity in cements were analysed. Percolation theory-derived threshold pore diameter gives the best estimates. Derived equation yields better results than Katz–Thompson relationship.
Abstract Correlations between the air permeability coefficient and various pore structure indicators in cementitious materials were examined to determine the pore structure indicator that best evaluated air permeability using data from previous studies. In this study, the air permeability data from sufficiently dried specimens were selected and the effect of pressure on the air permeability was ignored. Among five pore structure indicators, the median and new threshold pore diameters obtained by percolation theory showed higher determination coefficients. The regression equation using the new threshold pore diameter better estimated the air permeability coefficient than the Katz–Thompson equation.
Correlations between air permeability coefficients and pore structure indicators of cementitious materials
https://orcid.org/0000-0002-6726-2609
Highlights Air permeability and pore structure of cementitious materials are closely related. Data from reports on air permeability and porosity in cements were analysed. Percolation theory-derived threshold pore diameter gives the best estimates. Derived equation yields better results than Katz–Thompson relationship.
Abstract Correlations between the air permeability coefficient and various pore structure indicators in cementitious materials were examined to determine the pore structure indicator that best evaluated air permeability using data from previous studies. In this study, the air permeability data from sufficiently dried specimens were selected and the effect of pressure on the air permeability was ignored. Among five pore structure indicators, the median and new threshold pore diameters obtained by percolation theory showed higher determination coefficients. The regression equation using the new threshold pore diameter better estimated the air permeability coefficient than the Katz–Thompson equation.
Correlations between air permeability coefficients and pore structure indicators of cementitious materials
https://orcid.org/0000-0002-6726-2609
Highlights Air permeability and pore structure of cementitious materials are closely related. Data from reports on air permeability and porosity in cements were analysed. Percolation theory-derived threshold pore diameter gives the best estimates. Derived equation yields better results than Katz–Thompson relationship.
Abstract Correlations between the air permeability coefficient and various pore structure indicators in cementitious materials were examined to determine the pore structure indicator that best evaluated air permeability using data from previous studies. In this study, the air permeability data from sufficiently dried specimens were selected and the effect of pressure on the air permeability was ignored. Among five pore structure indicators, the median and new threshold pore diameters obtained by percolation theory showed higher determination coefficients. The regression equation using the new threshold pore diameter better estimated the air permeability coefficient than the Katz–Thompson equation.
Correlations between air permeability coefficients and pore structure indicators of cementitious materials
Sakai, Yuya (author)
Construction and Building Materials ; 209 ; 541-547
2019-03-08
7 pages
Article (Journal)
Electronic Resource
English
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