Abstract
Slake durability tests, point load strength tests and X-ray diffraction analyses were carried out on thirteen rock types in an attempt to correlate the durability of the rocks with their strengths and mineral compositions. A concept is proposed to describe the rock degradation characteristics from the results of slake durability test cycles. A new classification system is introduced for rock durability, which allows the prediction of the strength of a rock when it has been affected by the weathering process. The aim of the study was to predict the influence of the weathering process (simulated by wetting and drying and heating and cooling) on the durability and strength of the volcanic, metamorphic and sedimentary rocks outcropping in eastern Thailand. Field studies were carried out in an attempt to relate the heat absorption of the rocks in situ to that measured on the laboratory specimens.
Résumé
Des essais de durabilité, de résistance entre pointes et des analyses diffractométriques RX ont été réalisés sur treize types de roches afin de corréler la durabilité des roches avec leur résistance et leur composition minéralogique. Un concept est proposé pour décrire les caractéristiques de dégradation d’une roche à partir des résultats d’essais cycliques de durabilité. Une nouvelle classification est introduite pour la durabilité des roches qui permet la prédiction de la résistance d’une roche lorsqu’elle a été affectée de processus d’altération. Le but de l’étude était de prévoir l’influence de processus d’altération (simulés par humidification et séchage ou par chauffage et refroidissement) sur la durabilité et la résistance de roches volcaniques, métamorphiques et sédimentaires à l’affleurement dans l’est de la Thaïlande. Les études de terrain ont été réalisées afin de mettre en rapport l’absorption de chaleur des roches en place avec les valeurs mesurées sur des échantillons au laboratoire.
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This research was funded by Suranaree University of Technology. Permission to publish this paper is gratefully acknowledged.
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Fuenkajorn, K. Experimental assessment of long-term durability of some weak rocks. Bull Eng Geol Environ 70, 203–211 (2011). https://doi.org/10.1007/s10064-010-0297-8
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DOI: https://doi.org/10.1007/s10064-010-0297-8