Materiales de Construcción, Vol 49, No 254 (1999)

Influence of the environment on weathering of limestone: study through mercury porosimetry

M. I. Sánchez Rojas
Instituto de Ciencias de la Construcción "Eduardo Torroja" (CSIC), Spain

N. García
Laboratorio Control de Materiales CLAR Rehabilitación, Spain

M. Frías
Instituto de Ciencias de la Construcción "Eduardo Torroja" (CSIC), Spain


The physic-chemical processes of decay in building materials and, particularly those affecting petreum materials, obey to different causes as composition, morphology, texture, the orientation of the material in the building and, mainly, its interaction with the environment.
Because of their chemical composition, limestone materials may undergo alterations when they are in contact with aggressive media. Rain water or fog contain gases that may dissolve the stone provoking crusts due to salts precipitation.
This work is based in the study of the decay processes of a limestone material from a building placed at Madrid. Mercury porosimetry technique (among others) is used in this study.

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Copyright (c) 1999 Consejo Superior de Investigaciones Científicas (CSIC)

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