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Patterns of damage in igneous and sedimentary rocks under conditions simulating sea-salt weathering

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Patterns of damage in igneous and sedimentary rocks under conditions simulating sea-salt weathering (EN)
Cardell, C (EN)
Birginie, JM (EN)
Rivas, T (EN)
Moropoulou, A (EN)
Silva, B (EN)
Mosquera, MJ (EN)
Van Grieken, R (EN)
Brieto, B (EN)
journalArticle (EN)
2014-03-01T01:19:25Z
2003 (EN)
A saline-spray artificial ageing test was used to simulate the effects produced in granites and sedimentary rocks (calcarenites, micrites and breccia) under conditions in coastal environments. Three main points were addressed in this study: the durability of the different kinds of rock to salt decay, the resulting weathering forms and the rock properties involved in the weathering processes. For this, mineralogical and textural characterization of each of the different rocks was carried out before and after the test. The soluble salt content at different depths from the exposed surfaces was also determined. Two different weathering mechanisms were observed in the granite and calcareous rocks. Physical processes were involved in the weathering of granite samples, whereas dissolution of calcite was also involved in the deterioration of the calcareous rocks. We also showed that microstructural characteristics (e.g. pore size distribution), play a key role in salt damage, because of their influence on saline solution transport and on the pressures developed within rocks during crystallization. Copyright © 2003 John Wiley & Sons, Ltd. (EN)
Geosciences, Multidisciplinary (EN)
Geography, Physical (EN)
Granitic rocks (EN)
sedimentary rock (EN)
microstructure (EN)
Pore structure (EN)
Crystallization (EN)
Igneous rocks (EN)
weathering (EN)
Aging of materials (EN)
coastal zone (EN)
Sea-salt weathering (EN)
Pore size (EN)
Sedimentary rocks (EN)
granite (EN)
Weathering (EN)
Calcareous rocks (EN)
aging (EN)
sea salt (EN)
Ageing tests (EN)
Earth Surface Processes and Landforms (EN)
English
JOHN WILEY & SONS LTD (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
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