The use of a scanning electron microscope equipped with a microanalytical system is proposed for characterising the ancient mortars. A calculation procedure is presented that allows determining the binder and aggregate compositions (including volatile components) from microprobe data collected on the binder and chemical, mineralogical, petrographical and physical data collected on the mortar bulk sample. The proposed procedure is applied to eleven mortar samples from three historical monuments built in Pisa during the Middle Ages. The binder of the analysed samples consists of a carbonate crystalline fraction and an amorphous carbonate-free fraction that makes up from 20 % to 60 % by weight of the binder. The aggregate composition, on average, closes to that of the Arno river sands.

A procedure for determining the chemical composition of binder and aggregate in ancient mortars: its application to mortars from some medieval buildings in Pisa

FRANZINI, MARCO;LEONI, LEONARDO;LEZZERINI, MARCO
2000

Abstract

The use of a scanning electron microscope equipped with a microanalytical system is proposed for characterising the ancient mortars. A calculation procedure is presented that allows determining the binder and aggregate compositions (including volatile components) from microprobe data collected on the binder and chemical, mineralogical, petrographical and physical data collected on the mortar bulk sample. The proposed procedure is applied to eleven mortar samples from three historical monuments built in Pisa during the Middle Ages. The binder of the analysed samples consists of a carbonate crystalline fraction and an amorphous carbonate-free fraction that makes up from 20 % to 60 % by weight of the binder. The aggregate composition, on average, closes to that of the Arno river sands.
Franzini, Marco; Leoni, Leonardo; Lezzerini, Marco
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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/11568/190513
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 51
  • ???jsp.display-item.citation.isi??? 46
social impact