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Investigations of the Surface Processes on Exposed Limestones

Published online by Cambridge University Press:  28 February 2011

Pagona Maravelaki ,
R. Bertoncello ,
G. Biscontin ,
G. Battaglin ,
E. Zendri  and
E. Tondello
Pagona Maravelaki
Affiliation:
Dipartimento di Scienze Ambientali, Universitâ di Venezia, Calle Larga S. Marta 2137, 1-30123, Italy
R. Bertoncello
Affiliation:
Dipartimento di Chimica Inorganica, Metallorganica ed Analitica,Universita di Padova, Via Loredan 4, 1-35131, ITALY.
G. Biscontin
Affiliation:
Dipartimento di Scienze Ambientali, Universitâ di Venezia, Calle Larga S. Marta 2137, 1-30123, Italy
G. Battaglin
Affiliation:
Dipartimento di Chimica-Fisica, Università di Venezia, Calle Larga S. Marta 2137, 1-30123, Italy
E. Zendri
Affiliation:
Dipartimento di Scienze Ambientali, Universitâ di Venezia, Calle Larga S. Marta 2137, 1-30123, Italy
E. Tondello
Affiliation:
Dipartimento di Chimica-Fisica, Università di Venezia, Calle Larga S. Marta 2137, 1-30123, Italy
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Abstract

Different decay mechanisms, according to the exposure to rain actions, have been identified on a series of Istria stone samples derived from the Venetian buildings. Enquiries have been carried out on these samples by means of porosity measurements and chemical analysis in depth. In order to identify the decay mechanisms and their.kinetics, simulation tests have been,performed on exposed samples of Istria stone for a period of 19 months. These specimens have been analysed by several techniques in order to verify the chemical dissolution of limestone provoked by the rain action. The initial chemical attack on the exposed samples has been pointed out by XPS and RBS micro-analytical techniques.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 267: Symposium J – Materials Issues in Art and Archaeology III , 1992 , 943
Copyright
Copyright © Materials Research Society 1992

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