Geotechnical and mineralogical properties of weak rocks from Central Greece
Open Access
- 1 December 2009
- journal article
- Published by Walter de Gruyter GmbH in Open Geosciences
- Vol. 1 (4), 431-442
- https://doi.org/10.2478/v10085-009-0029-0
Abstract
Thirty bulk samples of hard soils-soft rocks such as marls, originating from Euboea Island and Peloponnesus area, were investigated to evaluate their geotechnical behavior. Specifically, by conducting a series of physical and geotechnical tests, such as liquid limit and plastic limit tests, along with the estimation of the grain size fraction, Slake Durability and Point Load Test. Certain parameters were determined and used for empirical correlations with their mineralogical characteristics. The mineralogical composition was determined by X-ray diffraction, thermo-gravimetric and thermal analysis, succeeded by textural analysis performed by Optical Microscope. With the help of the above mentioned tests, we interpreted the observed geotechnical behavior of the examined weak rocks by means of mineralogical composition and texture. Durability and the unconfined compressive strength was found to be influenced by high percentages in carbonate minerals. In addition, it was found that a decrease in clay content resulted in higher strength and durability values. The concluded empirical correlations verified the influence of these parameters and gave a general overview of the engineering behavior of the examined weak rocks.Keywords
This publication has 28 references indexed in Scilit:
- Evaluating the influence of rate of undercutting on the stability of slopesBulletin of Engineering Geology and the Environment, 2006
- Stress and deformation patterns in the Aegean regionJournal of Structural Geology, 2001
- Factors affecting the durability of selected weak and clay-bearing rocks from Turkey, with particular emphasis on the influence of the number of drying and wetting cyclesEngineering Geology, 2000
- The role of clay minerals in durability of rocks observations on basaltic rocksApplied Clay Science, 1994
- Lithological controls of mudrock durabilityQuarterly Journal of Engineering Geology, 1992
- Correlation of mineralogy and index properties with residual strength of Iraklion marlsEngineering Geology, 1991
- Geotechnical properties of the Corinth Canal marlsGeotechnical and Geological Engineering, 1991
- Implications of weathering on the engineering properties of the Fuller's Earth formationGéotechnique, 1988
- Engineering Behavior of Carbonate Soils of India and Some Observations on Classification of Such SoilsPublished by ASTM International ,1982
- The slake-durability testInternational Journal of Rock Mechanics and Mining Sciences, 1972