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This paper presents design and construction of an experimental test to determine the thermal resistance of a hollow concrete blocks wall, according to the international standard known as guarded hot plate. The construction procedure and implementation of the device are described, reproducing operations conditions for buildings located in warm dry climate, and the thermal resistance was experimentally and numerically determined. The results were found by applying controlled temperature differences on both sides of the wall between heating and cooling temperature zones, in steady state conditions. Experimental and numerical results show variations in the value of thermal resistance, ranging from 0.15 to 0.19 °C m2/W. Values of the thermal resistance were fitted to an empirical expression as function of the temperature difference between the walls and the average temperature of the wall.

Determinación Experimental y Contraste Numérico de la Resistencia Térmica de un Muro de Bloques de Concreto Hueco