Abstract
European standards place great emphasis on the reintroduction of waste in the production chain. In this research, a combination of experimental tests has been carried out to analyse the use of revalorized isostatic graphite powder waste in gypsum-based boards. A series of gypsum pastes was prepared with a graphite content ranging from 0% to 25%, by weight substitution, and two w/b ratios. Its addition significantly increased the bulk density, thermal conductivity and emissivity of the samples until 19%, 97% and 10%, respectively. Additionally, a reduction of 54% in thermal fluxes towards the outside can be achieved when graphite-gypsum boards replaced gypsum ones at radiative constructive solutions.
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