Abstract
The suitability of the sand-blast test to assess resistance of hard rocks against abrasion is investigated for eight different rock types. The test provides a good discrimination between different types of hard rock and is also sensitive to anisotropy in rock materials. A microscope study of the result of the impact of sand particles on the rock surface has been made in order to determine the applicability of the test to practical circumstances. Volume loss due to sand-blasting on hard rocks shows a correlation with tensile strength.
Résumé
Une recherche sur l'utilisation de l'essai au jet de sable pour déterminer la résistance à l'usure est effectuée sur huit roches dures différentes. L'essai donne une bonne discrimination entre ces différents types de roches dures. L'essai est aussi sensible à l'anisotropie. Une étude microscopique des surfaces sablées a été effectuée pour étudier l'utilité de l'essai pour des applications pratiques. La perte de volume due au sablage des roches dures est en correlation avec la résistance à la rupture.
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References
BROWN E.T. (ed), (1981): Rock Characterization Testing and Monitoring. ISRM suggested methods. Permagon Press, Oxford, pp 201.
DIBB T.E., HUGHES D.W., POOLE A.B., (1983): The identification of critical factors affecting rock durability in marine environments. Q.J. eng. Geol. London, Vol. 16, pp 149–161.
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An erratum to this article is available at https://doi.org/10.1007/BF02594761.
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Verhoef, P.N.W., Kuipers, T.J. & Verwaal, W. The use of the sand-blast test to determine rock durability. Bulletin of the International Association of Engineering Geology 29, 457–461 (1984). https://doi.org/10.1007/BF02594457
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DOI: https://doi.org/10.1007/BF02594457