THERMOMECHANICAL TESTING OF AN AERATED CONCRETE WALL

Abstract

A one year old aerated concrete wall still contains a substantial amount of moisture and dries slowly. Full scale tests show that the aerated concrete material, regarded as homogeneous, has a different thermal conductivity through the wall cross section. The relationship between thermal conductivity and moisture content is determined. A 30 cm thick aerated concrete wall with mortars on both sides has a factor of thermal conductivity of 0.59W/m²K in spite of the high moisture content. Testing heat-bridges (corners, slab-wall, wall-floor-footing) shows the standard temperature difference is likely to cause dew on the inner wall surface.