The analysis of heat conductivity coefficient of the aerated concrete building barriers depending on moisture changes
Zbigniew Suchorab
Institute of Environmental Protection Engineering; Environmental Engineering Faculty; Lublin University of Technology (Poland)
https://orcid.org/0000-0001-8658-864X
Danuta Barnat-Hunek
Department of General Construction of Buildings; Faculty of Civil Engineering and Architecture; Lublin University of Technology (Poland)
https://orcid.org/0000-0001-8409-3299
Abstract
The article is sacrificed to the aerated concrete building barriers moisture phenomenon. Water, which increases heat conductivity of building materials is the reason of the increased heat loses during the winter season. The result of this phenomenon is the decrease of indoor heat comfort parameters. Aerated concrete is a strongly water absorbing material with elongated time of water desorption. Capillary-porous structure of the described medium makes is highly prone to water influence what is the reason of the detailed analysis of heat conductivity coefficient in relation to moisture. In this article it is analyzed and compared the influence of moisture changes on heat parameters of the aerated concrete with the bulk densities of 400 and 600 kg/m3 using the reflectometric techniques TDR (Time Domain Reflectometry).
Keywords:
heat conductivity, moisture, reflectometric methods, aerated concreteReferences
Gawin D., Kosny J., Desjarlais A., Effect of moisture on thermal performance and energy efficiency of buildings with lightweight concrete walls, Proc. 2000 Summer Study on Energy Efficiency in Buildings “Efficiency & Sustainability, 3.149-3.160, Pacific Grove, California (USA), 20-25 August, 2000.
Google Scholar
Klemm P. (red.), Budownictwo ogólne. Tom 2 (Fizyka budowli), Wydawnictwo Arkady, Warszawa, 2005.
Google Scholar
Stefańska E., Konferencja naukowa: Ekologia w inżynierii procesów budowlanych. Tom II. Analiza czynników wpływających na zagrzybienie budynków, Lublin – Kazimierz Dolny, 21-24 maja 1998.
Google Scholar
Werszko D., Wybrane zagadnienia z techniki cieplnej, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław, 2003.
Google Scholar
Roels S., Sermijn J., Carmeliet J., Modelling unsaturated moisture transport in autoclaved aerated concrete: microstructural approach, Building Physics 2002 – 6th Nordic Symposium (Norway 2002).
Google Scholar
Authors
Zbigniew SuchorabInstitute of Environmental Protection Engineering; Environmental Engineering Faculty; Lublin University of Technology Poland
https://orcid.org/0000-0001-8658-864X
Authors
Danuta Barnat-HunekDepartment of General Construction of Buildings; Faculty of Civil Engineering and Architecture; Lublin University of Technology Poland
https://orcid.org/0000-0001-8409-3299
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