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FRP on historic stone artifacts still now represent innovative applications, insufficiently implemented and tested, even for structural consolidation and reinstating of marble members affected with missing parts. Under agreement with Naples' Special Office for Artistic Heritage, in 2010 Department of Materials and Production Engineering of the University of Naples designed and carried on the static reinstatement and restoration to the damaged tails of the two marble lions sculptured at the base of the monumental complex dedicated to Neapolitan Martyrs. The marble elements, differently damaged and formerly restored, have been subjected to diverse material re-adhesion and re-integration procedures, expressly draft and laboratory-tested preliminary. The recovered fragments of "Leone trafitto dalla spada"'s tail have been reassembled by inserting carbon-fiber, customer-dimensioned bars fixed by epoxy resin. The vandalized portion of "Leone dall'aspetto minaccioso"'s tail, already formerly substituted with a concrete prosthesis, has been recreated by adopting an inner expanded-polyurethane bar covered with CFRP and epoxy resin, then finished by a FRP-meshed, acrylic-resin upper coat. Thanks to an in-deep understanding of the operating procedures, basing on the fabric macroscopic survey, analytic investigations and thermography analysis, the study tested and assessed the restored fragments and prosthesis current condition, as well as the physical-chemical gripping and durability performance of the composites treatments, so deriving useful ex-post comparison about this innovative research field. (M.D.)

The so-called “baraccata house” – the first theorised building answer to earthquake-resistant behaviour improvement of the traditional masonry fabrics, as well as the first organic practical outfit of a legal post-seismic reconstruction standards (1784) – is attracting the increasing interest of a wide turnout of experts and scholars, because of its good performances in this field, as observed in well-conserved historic so-made examples and, more lately, in the laboratory testing activities on proper specimens (CNR-IVALSA). Focusing to Ischia’s historic tuff-masonry heritage, built in association with timber or metal frames after the massive 1883’s earthquake, this paper examines island last existing episodes, being fortunately survived replacements with reinforced concrete elements spreading during the 20th century. Thus, their constitution, layout and arrangements have been surveyed and assessed at the light of on-site stratigraphic and “as-found” conditions analyses of current fabrics, also helped by relating to proper original unreleased philological corpus. Therefore, so-made dwellings and architectures detailed account has been obtained, relevant to designing compatible building conservation treatments, as well as for to up-dating the specific frame solutions.