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This paper deals with the initial results of the study aimed at the application of non-intrusive optical methods to the monitoring of the efflorescence formation mechanism on stone materials. Ageing tests have been carried out in the laboratory on samples of stones with different porosity. The formation of efflorescence on samples has been induced artificially by capillary absorption and subsequent drying at room conditions. An automatic system for image acquisition and processing has been developed and employed to monitor the evaporation stage of each ageing cycle.

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Authors: LUCIA A C, JRC Ispra (IT);ZANETTA P, JRC Ispra (IT);ALBRECHT D, JRC Ispra (IT);FACCHINI M, JRC Ispra (IT);REALINI M, Politecnico di Milano, Centro CNR 'Gino Bozza' (IT)
Bibliographic Reference: Paper presented: Optical Methods in Biomedical and Environmental Sciences, Tokyo (JP), April 10-14, 1994
Availability: Available from (1) as Paper EN 38191 ORA
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