CONSERVATION AND RESTORATION OF THE NORTH-WESTERN NICHE AND PAVEMENT OF SAINT DOMNIUS CATHEDRAL IN SPLIT

Sa？etak The north-western niche of Saint Domnius cathedral (Diocletian’s mausoleum) held the organ whose height exceeded the height of the niche, and in the pavement area it covered the tombstone of the family Capogrosso. The installation of the organ has caused mechanical deterioration on the pavement and vertical walls of the niche. Apart from the already mentioned recent, mechanical deteriorations, traces of various inorganic soiling have been found, e.g. black crust. On certain surfaces subflorescence and efflorescence are visible on some stone sculptures, indicating a possible presence of harmful soluble salts. This paper presents diagnostic tests, as well as procedures of conservation and restoration on stone pavement and bottom layer of the floor