In their literary texts, some classical Roman authors such as Gaius Plinius Secundus andMarcus Vitruvius Pollio stress the importance of milling when preparing mortars. Followingthese indications, this work describes the effects of milling between lime (calcium hydroxide)and clay brick powder before and after the addition of water. Starting and resulting materialswere investigated by XRPD, SEM/EDS, differential scanning calorimetry and thermogravimetry(DSC/TC), colorimetry, densimetry and porosimetry. Prolonged milling changes themineralogy of the starting materials and increases their reactivity. The final lime pastes,starting from materials milled for varying periods of time, had different mineralogical andphysical characteristics. These results may help to clarify the reasons for the marked differencesin durability of some historical mortars.
In their literary texts, some classical Roman authors such as Gaius Plinius Secundus and Marcus Vitruvius Pollio stress the importance of milling when preparing mortars. Following these indications, this work describes the effects of milling between lime (calcium hydroxide) and clay brick powder before and after the addition of water. Starting and resulting materials were investigated by XRPD, SEM/EDS, differential scanning calorimetry and thermogravimetry (DSC/TC), colorimetry, densimetry and porosimetry. Prolonged milling changes the mineralogy of the starting materials and increases their reactivity. The final lime pastes, starting from materials milled for varying periods of time, had different mineralogical and physical characteristics. These results may help to clarify the reasons for the marked differences in durability of some historical mortars.
Effects of milling : a possible factor influencing the durability of historical mortars
MIRIELLO, DOMENICO;BLOISE, Andrea;CRISCI, Gino Mirocle;APOLLARO, Carmine
2010-01-01
Abstract
In their literary texts, some classical Roman authors such as Gaius Plinius Secundus andMarcus Vitruvius Pollio stress the importance of milling when preparing mortars. Followingthese indications, this work describes the effects of milling between lime (calcium hydroxide)and clay brick powder before and after the addition of water. Starting and resulting materialswere investigated by XRPD, SEM/EDS, differential scanning calorimetry and thermogravimetry(DSC/TC), colorimetry, densimetry and porosimetry. Prolonged milling changes themineralogy of the starting materials and increases their reactivity. The final lime pastes,starting from materials milled for varying periods of time, had different mineralogical andphysical characteristics. These results may help to clarify the reasons for the marked differencesin durability of some historical mortars.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
