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A CONDITIONING METHOD FOR ARGILLACEOUS ROCK CORES HAVING DISKING PROPENSITY WITH THE INFLUENCE OF WATER

AUTHOR/S: E. EMIR, S. BEYHAN
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 219-226 pp

ABSTRACT

In Turkey in the Tuncbilek coal basin, the subject area of this study, there are gray and
brown colored marl formations. As known, the test specimens shall be conditioned in
such a way as to be reached to the natural water content before the strength tests, and it
is preferred to use the saturated specimen in order to be representative for levels below
the groundwater. It is noticed that the gray marl core samples taken from Tuncbilek
were broken into parallel slices by the influence of water in less than half an hour. In
this study, instead of directly treatment with water, the conditioning studies on the
Tuncbilek marl samples were carried out in a climate cabin and, it was determined that
the marl moisture holding capacity increased when the environment humidity increased
and/or temperature decreased. As a result of these conditioning studies, the optimum
conditioning for the marl of this region was found to be 17.6 oC temperature and 90 %
Relative Humidity (RH) by taking working efficiency of the climate cabin and
underground mine climate into consideration. Besides, the triaxial compression strength
tests were carried out on the dried samples and on the samples which were subjected to
conditioning. According to the test results, geomechanical material properties were
determined in order to be used for future studies that will be conducted at this region.

Keywords: marl, core disking, climate conditioning