Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Study of Repair Mortars for Restoration of Wall Painted Plasters in a Hypogeum Rock-Cut Church of Matera (Southern Italy)

Manuel Giandomenico
ORCID logo ,
Filippo Edoardo Capasso
ORCID logo ,
Sokol Muca
ORCID logo ,
Maria Carolina Gaetani
,
Giovanni Quarta
,
Sara Iafrate
ORCID logo ,
Davide Melica
,
Angela Calia
*
Version 1 : Received: 28 July 2023 / Approved: 31 July 2023 / Online: 1 August 2023 (10:50:57 CEST)

A peer-reviewed article of this Preprint also exists.

Giandomenico, M.; Capasso, F.E.; Muca, S.; Gaetani, M.C.; Quarta, G.; Iafrate, S.; Melica, D.; Calia, A. A Study of Repair Mortars for Restoration of Wall Painted Plasters in a Hypogeum Rock-Cut Church of Matera (Southern Italy). Materials 2023, 16, 5715. Giandomenico, M.; Capasso, F.E.; Muca, S.; Gaetani, M.C.; Quarta, G.; Iafrate, S.; Melica, D.; Calia, A. A Study of Repair Mortars for Restoration of Wall Painted Plasters in a Hypogeum Rock-Cut Church of Matera (Southern Italy). Materials 2023, 16, 5715.

Abstract

Several lime mortars for the repair of painted plasters of the rock cut church of Ss. Pietro and Paolo in Matera were studied. They were designed taking into account both aesthetic criteria that need to be fulfilled in the field of paintings restoration, and physical-mechanical compatibility with the original materials on site, i.e. the pre-existing plasters and the supporting rock. Mixes with calcareous and silica aggregates, based on different grain size proportions, were prepared for filling missing portions of the original painted plaster. The effects of the mineralogical nature and size of the aggregates on the characteristics and properties of the mixes were investigated in relation to the microstructure, physical-mechanical features and resistance to salt ageing. At the end of the experimental campaign, the overall performances were evaluated.

Keywords

air lime mortars; calcareous aggregate; silica aggregate; microstructure; physical-mechanical performance; salt ageing

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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