I materiali lapidei di pregio utilizzati nella Cappella del Crocifisso presso la chiesa di S. Ignazio Martire all'Olivella (Palermo).

Marble and stone revetment and pavements: Context and provenance

Earlier excavations and survey at Vagnari furnished hardly any evidence for the use of marble at the site, and so the vicus was considered to be a low status settlement, with only a few rooms having been elegant enough to decorate them with marble floors or revetment. The fragments recovered were not analysed scientifically to determine the location of the quarries from which the marbles came. Of particular interest, however, were two small fragments of inscriptions on white marble retrieved from the rubble fill dumped in the 4th century AD in the reservoir. These originally may have been attached, when intact, to votive or funerary monuments, suggesting that the occasional commemorative mo…

Chlorides concentration and ph measurement of concrete structure through immersed sensors

The present work develops non-destructive measurements of chemical-physical parameters of concrete, in order to evaluate the degradation condition and to monitor, in time, the aging process. This study in particular focuses on the measurement of parameters such as pH, and therefore the carbonatation level of the concrete, and salt concentration (i.e. chlorides), and the evolution of these quantities with time. The analysis can be extended to other chemical-physical parameter of interests for which is provided a specific microsensor.