This paper shows the results of a multidisciplinary study carried out on the mortars from the Late Roman Villa dell’Oratorio (fourth-sixth ad), an aristocratic mansion built in the lower Valdarno (Florence, Italy). Thirty-one bedding mortar and plaster samples were analysed through optical microscopy, thermogravimetric analysis, X-ray powder diffraction and scanning electron microscopy with energy-dispersive X-ray spectroscopy for determining the chemical, mineralogical and petrographic characteristics, while their main physical properties were measured by geotechnical procedures. The collected data indicates that the analysed mortars are made up of very fine to coarse river sand aggregate mixed with white to yellowish-white natural hydraulic lime binder mainly consisting of mixtures of prevailing calcite and hydraulic compounds. With regard to the origin of the raw materials, the aggregates were recognized to be selected Arno river sands, and the binders are the burning product of a local marly limestone (ex Alberese). Therefore, the mortars of the Late Roman Villa dell’Oratorio are one of the first uses of natural hydraulic lime in the lower Valdarno.

Lezzerini, M., Ramacciotti, M., Cantini, F., Fatighenti, B., Antonelli, F., Pecchioni, E., et al. (2017). Archaeometric study of natural hydraulic mortars: the case of the Late Roman Villa dell'Oratorio (Florence, Italy). ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES, 9(4), 603-615 [10.1007/s12520-016-0404-2].

Archaeometric study of natural hydraulic mortars: the case of the Late Roman Villa dell'Oratorio (Florence, Italy)

Giamello, Marco
2017-01-01

Abstract

This paper shows the results of a multidisciplinary study carried out on the mortars from the Late Roman Villa dell’Oratorio (fourth-sixth ad), an aristocratic mansion built in the lower Valdarno (Florence, Italy). Thirty-one bedding mortar and plaster samples were analysed through optical microscopy, thermogravimetric analysis, X-ray powder diffraction and scanning electron microscopy with energy-dispersive X-ray spectroscopy for determining the chemical, mineralogical and petrographic characteristics, while their main physical properties were measured by geotechnical procedures. The collected data indicates that the analysed mortars are made up of very fine to coarse river sand aggregate mixed with white to yellowish-white natural hydraulic lime binder mainly consisting of mixtures of prevailing calcite and hydraulic compounds. With regard to the origin of the raw materials, the aggregates were recognized to be selected Arno river sands, and the binders are the burning product of a local marly limestone (ex Alberese). Therefore, the mortars of the Late Roman Villa dell’Oratorio are one of the first uses of natural hydraulic lime in the lower Valdarno.
Lezzerini, M., Ramacciotti, M., Cantini, F., Fatighenti, B., Antonelli, F., Pecchioni, E., et al. (2017). Archaeometric study of natural hydraulic mortars: the case of the Late Roman Villa dell'Oratorio (Florence, Italy). ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES, 9(4), 603-615 [10.1007/s12520-016-0404-2].
File in questo prodotto:
File Dimensione Formato  
Lezzerini2017_Article_ArchaeometricStudyOfNaturalHyd.pdf

non disponibili

Tipologia: PDF editoriale
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 2.45 MB
Formato Adobe PDF
2.45 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1034057