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This paper highlights wetting measurements and results carried out on four different generally used construction and some insulating materials, executed in our Building Physics laboratory in University of Debrecen, Faculty of Engineering, Debrecen, Hungary. The measurements focused on the initial state of the water up-takin procedure (240 min wetting) only, waiting for the equilibrium moisture content was not a goal of this paper. Currently, Aereated concrete, small solid brick, Porotherm and ceramsite-concrete structural members are usually applied in building structures. The measurements of water sorption investigations are so significant from the point of view of thermal sizing of the buildings. To put it simply this article can be imagined as a short time wetting sorption database comparing with our previous results, besides this article can be very useful for everyone in building physics and in building engineering. In addition building materials, insulating materials were tested and will be put forward, as well, eg.: expanded polystyrene, extruded polystyrene, poly-urethane, and some fibrous materials. Totally, 11 materials were investigated, after drying in a Venticell 111 type desiccator apparatus at 343 K to changeless weight and then wetting in a Climacell 111 type climatic chamber, where the relative humidity was varied from 25% to 95% at 293K for 240 min. As result, new isotherm curves for this short time wetting will be presented and will be compared to the literature data, MSZ-04-140-2-1991.
This paper highlights wetting measurements and results carried out on four different generally used construction and some insulating materials, executed in our Building Physics laboratory in University of Debrecen, Faculty of Engineering, Debrecen, Hungary. The measurements focused on the initial state of the water up-takin procedure (240 min wetting) only, waiting for the equilibrium moisture content was not a goal of this paper. Currently, Aereated concrete, small solid brick, Porotherm and ceramsite-concrete structural members are usually applied in building structures. The measurements of water sorption investigations are so significant from the point of view of thermal sizing of the buildings. To put it simply this article can be imagined as a short time wetting sorption database comparing with our previous results, besides this article can be very useful for everyone in building physics and in building engineering. In addition building materials, insulating materials were tested and will be put forward, as well, eg.: expanded polystyrene, extruded polystyrene, poly-urethane, and some fibrous materials. Totally, 11 materials were investigated, after drying in a Venticell 111 type desiccator apparatus at 343 K to changeless weight and then wetting in a Climacell 111 type climatic chamber, where the relative humidity was varied from 25% to 95% at 293K for 240 min. As result, new isotherm curves for this short time wetting will be presented and will be compared to the literature data, MSZ-04-140-2-1991.
Initial State Sorption Measurements
Applied Mechanics and Materials ; 824 ; 589-597
2016-01-28
9 pages
Article (Journal)
Electronic Resource
English
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