Gypsum Composites with CDW as Raw Material

In this study, the feasibility of incorporating ceramic waste from bricks (perforated brick and double hollow brick) and extruded polystyrene (XPS) waste, is analysed. Results show that it is possible to incorporate up to 25% of ceramic waste and 4% of XPS waste over the weight of gypsum in a gypsum matrix. Furthermore, with the addition of ceramic waste an 8% of surface hardness increase and a 25% of capillary water absorption reduction can be obtained. On the other hand, with the addition of XPS, a 26% reduction of density and a 37% improvement of thermal conductivity can be obtained. The obtained results are favorable to use these materials in order to produce prefabricated gypsum and also as material for interior cladding walls.

Authors:

• R. Santos Jiménez
• A. San-Antonio-González
• M. Del Río Merino
• M. González Cortina
• C. Viñas Arrebola

Keywords:

• CDW
• waste materials
• ceramic waste
• XPS
• construction materials
• gypsum.

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