Computational And Experimental
Characterization Of Building Envelopes Based On
Autoclaved Aerated Concrete
Author(s)
V. Kočí, J. Výborný & R. Černý
Abstract
Hygrothermal performances of three types of building envelopes based on
autoclaved aerated concrete (AAC) provided with different thermal insulating
materials (expanded polystyrene, hydrophilic mineral wool, AAC with extended
thermal insulation capability) are compared. The simulations are accomplished
using the computer code HEMOT based on the finite element method. Results of
the simulation are the moisture and temperature fields across the building
envelope, which in combination with mechanical parameters present a sufficient
data source for service life analysis.
Keywords: computational analysis, coupled heat and moisture transport,
autoclaved aerated concrete, building envelopes, climatic conditions.
1 Introduction
Autoclaved aerated concrete (AAC) is a structural material which is commonly
used around Europe, particularly as it combines ease of construction with
excellent combination of its mechanical and thermal properties. However,
despite the very good thermal properties of AAC, it can be anticipated that with
the increasing demand for energy savings it will become a necessity to provide it
with thermal insulating system or at least very good thermal insulating plaster to
meet stringent conditions given by future thermal standards. The choice of
proper insulating material for AAC is though quite difficult with respect to
service life of the whole building envelope. As it was demonstrated in [1–3],
most common insulation materials cause extreme hygrothermal straining of
Keywords
computational analysis, coupled heat and moisture transport,
autoclaved aerated concrete, building envelopes, climatic conditions
Related Book
Other papers in this volume
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