Abstract
The hidric behaviour of two slaty rocks from the NW of Spain (phyllite of Rande —La Coruna— and slate of Luarca —Asturias—) used as ornamental and roof slate is studied. An experimental methodology for proper interpretation of the hidric phenomena to which they can be subjected due to their particular use in the building industries is proposed. The results of the tests (swelling, slaking and wetting/drying cycles) are related to the mineralogy and texture, as well as to some physical properties related to the water movement throughout the rocks (porosity, air permeability and water absorption).
Highlights
The hidric behaviour of two slaty rocks from the NW of Spain used as ornamental and roof slate is studied
to some physical properties related to the water movement throughout the rocks
Precio: España, 1.500 ptas., 21 $ USA
Summary
G. y CALLEJA, L Grupo de Petroffsica. Se estudia el comportamiento hídrico de dos rocas pizarrosas del NW de España (filita de Rande —La Coruña— y pizarra de Luarca —Asturias—), utilizadas como pizarras ornamentales y de techar. Se propone una metodología experimental para una correcta interpretación de los fenómenos hídricos a que pueden estar sometidas por sus usos en la industria de la construcción. Los resultados de los ensayos (hinchamiento, desmoronamiento y ciclos humedad/sequedad) se relacionan con la mineralogía y textura, así como con algunas propiedades físicas relacionadas con el movimiento del agua por el interior de las rocas (porosidad, permeabilidad al aire y absorción de agua)
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