A study of salt weathering cycles impact on limestones

Abstract

Here are discussed results of salt weathering laboratory tests on specimens of three limestones, two grainstones (designated as Semi-rijo and Moca Creme) and a travertine, considering parameters related to an initial ma ss in creasing phase and to mass differences between cycles in the mass decreasing phase. Results show a good ordinal correlation between final mass loss and maximum difference between cycles that differentiates the considered rock types. ; The Lab2PT, Landscape, Heritage and Territory Laboratory (UID/ECI/04028/2013) of the University of Minho and the CERENA - Centro de Recursos Naturais e Ambiente (UID/ECI/04028/2013) of the Instituto Superior Técnico, University of Lisbon are supported by the FCT - Fundação para a Ciência e Tecnologia (Portugal), with Portuguese funds and funds from the European Union (FEDER, Programa Operacional Factores de Competitividade – COMPETE 2020 – Programa Operacional Competitividade e Internacionalização, POCI, POCI-01-0145-FEDER-007528). The experimental data here discussed were obtained in the context of the Project PORENET (POCTI/CTA/44940/2002) also funded by the FCT. Acknowledgments also to Eng. Teresa Luís, Eng. Sónia Pereira, and Enterprise Mármores Galrão for the rock blocks ...