Ecological restoration plasters and mineral pigments designed with raw material from the island of gavdos†Ecological restoration plasters and mineral pigments designed with raw material from the island of gavdos† Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2021-12-212020enGavdos is an island of ca. 34 km2 located to the south of Crete, Greece, with a local landscape rich in clay material of remarkable diversity in colour and quality. The limited natural and human-made resources are persistently recycled, forming the built structures of the island and determining the island’s sustainable local tradition. In the framework of this research, areas with clay soil were identified through a geological survey and testimonies of local inhabitants. The studied clay samples were characterized with mineralogical and physicochemical analyses. Two out of ten samples with a clay content higher than 50%, after low-temperature thermal treatment (600 °C and 700 °C), functioned as pozzolanic additives enhancing the performance in resistance to salt decay and plasticity of lime mortars. Seven raw clay samples were used as pigments in lime-based colours and their performance and durability, as assessed with the appropriate laboratory analyses, revealed the existence of stable mineral pigments under UV and visible light irradiation. There is great potential in the exploitation of local raw material from the island of Gavdos for the restoration of the traditional building stock on the island in terms of resource efficiency, environmental impact and preservation of the local identity. This article belongs to the special issue “Selected papers from the REHABEND 2020 congress”http://creativecommons.org/licenses/by/4.0/Infrastructures512Fotiou_et_al_Infrastructures_5(12)_2020.pdfChania [Greece]Library of TUC2021-12-20application/pdf9.9 MBfree Fotiou Afroditi Φωτιου Αφροδιτη Oiry Claire Oiry Claire Kapetanaki Kali Καπετανακη Καλη Perdikatsis Vasilis Περδικατσης Βασιλης Kallithrakas-Kontos Nikolaos Καλλιθρακας-Κοντος Νικολαος Maravelaki Pagona Μαραβελακη Παγωνα MDPI Restoration mortars Calcined clays Low thermal treatment Pozzolanic activity Stable mineral pigment