Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete

The thermal and moisture properties of building envelope materials determine their performance over many years of use. Moisture has a particularly negative impact, impairing all the technical parameters and adversely affecting the microclimatic conditions inside the building. This article presents r...

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Autores principales:	Halina Garbalińska, Magdalena Bochenek, Marcin Stasiak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	autoclaved aerated concrete sorption isotherms moisture air humidity modeling approaches Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/4d3ab5dfe0e742309f8b6c0b39768869
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spelling	oai:doaj.org-article:4d3ab5dfe0e742309f8b6c0b397688692021-11-11T17:49:20ZExperimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete10.3390/ma142162351996-1944https://doaj.org/article/4d3ab5dfe0e742309f8b6c0b397688692021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6235https://doaj.org/toc/1996-1944The thermal and moisture properties of building envelope materials determine their performance over many years of use. Moisture has a particularly negative impact, impairing all the technical parameters and adversely affecting the microclimatic conditions inside the building. This article presents research and analysis on the moisture behavior of partitions made of autoclaved aerated concrete. Autoclaved aerated concrete is a very popular material for building external walls because of its relatively good thermal insulation and sufficient strength, if it is not subjected to increased moisture. This study investigated how the moisture content of this material changes with the change in relative air humidity. The four most popular density classes were studied. The sorption isotherms were determined by the static gravimetric method throughout the whole hygroscopic range. Moreover, the applicability of various models to describe sorption isotherms of this material group has been extensively evaluated. The tested models (Peleg, Redlich, Chen, Oswin, Henderson, Lewicki, Caurie, and GAB) all provided a very good fit with the experimental results for the tested material group (R<sup>2</sup> ranged from 0.9599 to 0.9978). This paper indicates that the use of two additional approximation parameters (SSE and RMSE) allows a more precise assessment of the quality of individual models.Halina GarbalińskaMagdalena BochenekMarcin StasiakMDPI AGarticleautoclaved aerated concretesorption isothermsmoistureair humiditymodeling approachesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6235, p 6235 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	autoclaved aerated concrete sorption isotherms moisture air humidity modeling approaches Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	autoclaved aerated concrete sorption isotherms moisture air humidity modeling approaches Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Halina Garbalińska Magdalena Bochenek Marcin Stasiak Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete
description	The thermal and moisture properties of building envelope materials determine their performance over many years of use. Moisture has a particularly negative impact, impairing all the technical parameters and adversely affecting the microclimatic conditions inside the building. This article presents research and analysis on the moisture behavior of partitions made of autoclaved aerated concrete. Autoclaved aerated concrete is a very popular material for building external walls because of its relatively good thermal insulation and sufficient strength, if it is not subjected to increased moisture. This study investigated how the moisture content of this material changes with the change in relative air humidity. The four most popular density classes were studied. The sorption isotherms were determined by the static gravimetric method throughout the whole hygroscopic range. Moreover, the applicability of various models to describe sorption isotherms of this material group has been extensively evaluated. The tested models (Peleg, Redlich, Chen, Oswin, Henderson, Lewicki, Caurie, and GAB) all provided a very good fit with the experimental results for the tested material group (R<sup>2</sup> ranged from 0.9599 to 0.9978). This paper indicates that the use of two additional approximation parameters (SSE and RMSE) allows a more precise assessment of the quality of individual models.
format	article
author	Halina Garbalińska Magdalena Bochenek Marcin Stasiak
author_facet	Halina Garbalińska Magdalena Bochenek Marcin Stasiak
author_sort	Halina Garbalińska
title	Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete
title_short	Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete
title_full	Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete
title_fullStr	Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete
title_full_unstemmed	Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete
title_sort	experimental and modeling investigations on the water sorption behaviors of autoclaved aerated concrete
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4d3ab5dfe0e742309f8b6c0b39768869
work_keys_str_mv	AT halinagarbalinska experimentalandmodelinginvestigationsonthewatersorptionbehaviorsofautoclavedaeratedconcrete AT magdalenabochenek experimentalandmodelinginvestigationsonthewatersorptionbehaviorsofautoclavedaeratedconcrete AT marcinstasiak experimentalandmodelinginvestigationsonthewatersorptionbehaviorsofautoclavedaeratedconcrete
_version_	1718431998717984768

Experimental and Modeling Investigations on the Water Sorption Behaviors of Autoclaved Aerated Concrete

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