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Título

The influence of temperature in a capillary imbibition salt weathering simulation test on Mokattam limestone

Autor Nevin Aly, Mohamed ; Gómez-Heras, Miguel ; Hamed, A.; Álvarez de Buergo, Mónica ; Soliman, F.
Palabras clave Deterioro de la piedra
Durability
Limestone
Salt weathering
Stone decay
Deterioro por sales
Caliza
Durabilidad
Fecha de publicación 29-ene-2015
EditorConsejo Superior de Investigaciones Científicas (España)
Citación Materiales de Construccion, 65(317): e044 (2015)
Resumen© 2015 CSIC. Limestone is one of the most frequent building stones used in monuments in Egypt from ancient Egyptian times and salt weathering is one of the main threats to these monuments. During this work, cylindrical limestone samples (2 cm diameter and approx. 4 cm length) from Mokattam group, one of the most frequent materials in historic Cairo, were subjected, in a purpose-made simulation chamber, to laboratory salt weathering tests with a 10% weight NaCl solution at different temperatures (20, 30, 40 °C). During each test, temperature was kept constant and salt solutions flowed continuously imbibing samples by capillary rise resembling the way they get into building stone in many real cases. Air temperature, relative humidity inside the simulation chamber and also samples weight were digitally monitored and recorded. Results show the influence of temperature and the ratio between imbibitions and evaporation on the dynamics of salt crystallization in the samples.
URI http://hdl.handle.net/10261/113823
DOI10.3989/mc.2015.00514
Identificadoresdoi: 10.3989/mc.2015.00514
issn: 1988-3226
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