The analysis of heat conductivity coefficient of the aerated concrete building barriers depending on moisture changes
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Issue Vol. 8 No. 1 (2011)
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Selection of criteria in pedestrian wind comfort assessment
005-013
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The influence of boundary condition functions on the quality of the solution and its sensitivity to coefficients of k-ε turbulence models
015-026
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The consequences of the choice of design standards for the use of material on the example of glued laminated roof beam
027-034
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The consequences of the choice of design standards for the use of material on the example of reinforced concrete flat ceiling
035-045
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The numerical research of capacity of nodes in modular scaffolding system
047-065
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The numerical research of the strength of scaffolding boards
067-081
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Numerical modelling of vandalistic action on footbridge for pedestrians and bicycles
083-096
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Application of the TDR measuring technique for in-situ measurements using surface probes
097-106
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The analysis of heat conductivity coefficient of the aerated concrete building barriers depending on moisture changes
107-116
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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).
