Comportamiento térmico de placas ecológicas de yeso con escorias blancas de acería

Abstract

This study analyzes the thermal behavior of gypsum boards made with the addition of white slag from Horno Cuchara LF, with progressive substitutions of gypsum for slag of 20%, 40%, 60%, 80%. The reaction to fire, thermogravimetry and thermal conductivity in (300 × 400 × 15) mm³ plasterboard are studied. The addition of white slag produces in the plates a significant variation in the values of thermal conductivity and the coefficient of heat transfer by wall-air convection, caused by the increase in density and greater compaction of the material and, therefore, less thermal insulation. Likewise, the response to fire and to the increase in heat improves substantially as more white slag is incorporated, which produces a very relevant reduction in mass loss values. This is an advantage for use in partition walls or protection in industrial areas or with aggressive thermal environments.