Characterization of quality recycled gypsum and plasterboard with maximized recycled content

A. Jiménez-Rivero; J. García-Navarro

doi:10.3989/mc.2017.06016

Authors

A. Jiménez-Rivero Universidad Politécnica de Madrid, Research Group Sustainability in Construction and Industry giSCI-UPM, ETSIAAB https://orcid.org/0000-0003-4013-2334
J. García-Navarro Universidad Politécnica de Madrid, Research Group Sustainability in Construction and Industry giSCI-UPM, ETSIAAB https://orcid.org/0000-0002-5268-1587

DOI:

https://doi.org/10.3989/mc.2017.06016

Keywords:

Gypsum, Characterization, Physical properties, Mechanical properties, Flexural strength

Abstract

The quality of secondary materials is imperative to promote a circular economy. In order to improve the way in which the quality of recycled gypsum is assessed, European guidelines on recycled gypsum (RG) quality criteria have been outlined in the framework of the Life+ Gypsum to Gypsum (GtoG) project. Such GtoG guidelines, along with the European Standard on gypsum plasterboard EN 520, provided the basis for this study. During the GtoG project, gypsum recycling and plasterboard manufacturing processes were monitored by testing the gypsum feedstock and the plasterboard produced. The aim of this paper is to discuss the results obtained on relevant parameters that characterize gypsum as a secondary raw material, as well as the resulting product. The minimum requirements were fulfilled by 56% of the RG samples and 86% of the plasterboard with increased RG.

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