Author(s)

J. Delgado Rodrigues & D. Costa

Abstract

One major risk associated to the application of stone consolidants is the formation of sharp interfaces between the outer consolidated layer and the loose underlying substrate. The contrast in thermal, hydric and mechanical properties of treated and non-treated zones may create undesirable effects and lead to the rupture and subsequent detachment of the excessively rigid layers. This paper discusses the results obtained for the mechanical and thermal properties and analyses the ways used for getting information on the depth of impregnation reached by stone consolidants applied to some granite and limestone specimens. The behaviour of some consolidated limestones in a salt spray test showed that some consolidants led to a complete rupture of specimens. This fact demonstr

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