(Ed.) Report D5.2: laboratory and on-site testing activities, Part 2: Stone masonry

This report is the final form of the deliverable D5.2; in this document are reported the results obtained from a part of all activities provided within the Work Package 5 of the SMooHS project. Results derived from laboratory and on-site testing activities are presented in separated parts of the D5.2 in order to provide the end user specific documents focused on macro-themes recognized of great interest. The two main issues addressed for the masonry structures are: - the evaluation of NDT methods effectiveness to qualitative and quantitative detect defects and inhomogeneities; therefore within the ad-hoc designed wall specimens voids and inclusions were hidden inside the wall thickness. - The evaluation of NDT methods performances in detecting the beginning of material and structural damage and its evolution over longer periods by measuring mechanical and physical parameters. In order to induce damage on wall specimens, they were contaminated with salt solution. This document is dedicated to stone masonry and, in detail, it's main aim is to describe the advanced testing of “leccese” stone masonry walls, in order to evaluate the effectiveness of IR thermography and GPR radar to qualitatively and quantitatively detect defects and inhomogeneities (voids, irregular mortar joints, wooden and metallic inclusions) inside masonry textures or behind plaster layers, as well as evaluating the capacity of IR thermography and GPR radar to detect the beginning of material deterioration, due to aggressive environmental agents, and its long term evolution.