Replacing external stone window sills is one of the most common stonemasonry jobs for old homes, says Peskett – but there is also an aesthetic side to the job, as homeowners doing a restoration job often approach stonemasons to restore intricate stone carvings, usually found above doorways.
The tower is 57 m tall and is characterized by an unusual building typology, i.e., the walls are composed of a concrete core coupled with external masonry stones.
At visual observation, the cleaning of Crevoladossola surface has removed the external altered stone material.
In fact, as confirmed by GPR tests, there is a perfect connection between the external Trani's stones and the concrete core.
Given the previously discussed conditions, the most external and altered stone material has to be considered unstable and loss of material occurs as a result of the rain wash.
The paper describes the behaviour of tensile joints in irregular external faces of stone walls and the results of laboratory testing of selected technologies for strengthening mortar, which can be applied in strengthening, repair and renovation of historical stone masonry walls, with special references to structures with irregular faces.
From the courtyard, three sets of stone external stairs, which may be later additions, lead up to the Lord's Hall in the tower, to the adjacent Great Hall, and to the kitchens in a second tower to the west.
Micro computed tomography (CT) images were obtained to analyze the internal architecture and external surface of the stones.
It has an external hoodmould (a decorative stone border) around the top.
Around the outer stone balustrade that marks the Shrine's external boundary are the 16 stone "battle honours" discs.
