Recycling of gypsum plasterboard lightened with polyurethane waste
DOI:
https://doi.org/10.20868/ade.2015.3037Keywords:
Placa de yeso laminado, residuo de poliuretano, fibras de polipropileno, proceso de reciclado, Gypsum plasterboard, polyurethane waste, polypropylene fibers, recycling processAbstract
This paper presents the results of an experimental process of reusing waste obtained from waste gypsum plasterboard made from polymeric industrial waste (polyurethane foam) and polypropylene fibers whit the aim to manufacturer new gypsum plasterboards. Therefore, a methodology to recycle is presented to increase the life cycle of waste gypsum. The manufacturing process of the plates is detailed as well as their physical and mechanical characterization by means of standardized for gypsum plasterboard (bulk density, flexion strength, total water absorption and surface hardness). The results indicate that it is possible to recycle this type of prefabricated in a simple way. Likewise it has been demonstrated that new plates made with the residue reusing, have good mechanical strength, at the same time reduce the capacity of water absorption and increase its surface hardness.
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