Dissolved recycled expanded polystyrene as partial replacement in plaster composites
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2023-04-15
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Elsevier
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The recovery of Construction and Demolition Waste (CDW) for its reincorporation into the
manufacturing process of new materials is fundamental in the fight against environmental
pollution, reducing the current high consumption of raw materials and boosting energy savings.
The aim of this research is the study and development of a new plaster-based material in which
the conglomerating material is partially replaced by dissolved recycled expanded polystyrene. In
the experimental campaign, different dosages have been used in which the plaster material has
been progressively replaced by the dissolved recycled expanded polystyrene, in order to subsequently
carry out a physicochemical, physical and mechanical characterisation of the composites.
The results obtained show how the incorporation of expanded polystyrene in solution as a partial
replacement of the binder generates a homogeneous plaster composite, favouring the total
integration of the waste in the matrix of the construction material finally produced. It has been
observed that this new material has, in comparison with traditional plasters, a very low density,
high thermal resistance and excellent plate bending behaviour. These properties position the
developed material as a viable alternative in the production of more sustainable prefabricated
plates and panels through the application of circular economy criteria.
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Zaragoza-Benzal, A., Ferrández, D., Atanes-Sánchez, E., & Saíz, P. (2023). Dissolved recycled expanded polystyrene as partial replacement in plaster composites. Journal of Building Engineering, 65, 105697.