Industrial manufacture and on site application of plaster boards for ceilings with plaster mixes and polyurethane rigid foam waste

Abstract

The European LIFE Project, Repolyuse – “REcovery of POLYurethane for reUSE in eco-efficient materials” seeks to solve the environmental challenge of resource scarcity and waste management in order to mitigate the effects of climate change. The material is a prefabricated gypsum mortar in the form of a removable roofing plate to which residues of rigid polyurethane foam have been added. That system reduces the weight of the plates about 30%. The investigation has consisted of the final design of the mixtures of plaster mortar with residues of rigid polyurethane foam, mineral fibers, additives and water to achieve the adequate industrial manufacturing system of “Plaster mortar plates lightened with polyurethane foam waste” to put in roofs detachable. In the industry’s own production chain, the plasticity, moulding and drying of the plates can be similar to the process of the standard plates. The final result of the plates shows that the Flexural strength, Flatness, Angular deviation, Thermal conductivity, Superficial hardness, Reaction to the fire and Resistance to humidity have been similar to the results obtained in the laboratory. In the end, the plates were placed in two buildings in Spain. Consequently these results have enough been to achieve the CE marking