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Double-life sustainable construction materials from alkali activation of volcanic ash/discarded glass mixture

CONSTRUCTION AND BUILDING MATERIALS (2022)

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Summary: The study investigated the potential use of volcanic residues for the production of alkali activated material, particularly for the restoration of Baroque Sicilian architecture. By activating volcanic pyroclastic deposits considered waste materials and adding different amounts of metakaolin in the formulations, small quantities of zeolites were formed as a result of the alkali activation process. The mechanical-physical results showed a strong dependence of mechanical strength on the metakaolin amount, indicating the potential of these pyroclastic wastes for valorization in the restoration field.

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