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Experimental Investigations on Tensile Strength of Sand at Low Moisture Contents  

Kim, Tae-Hyung (Member, Post-Doctoral Researcher, Dept. of Civ. and Envir. Engrg., Lehigh Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.18, no.3, 2002 , pp. 23-31 More about this Journal
Abstract
This study shows that tensile strength in moist sand clearly exists due to moisture and it is possible to simply and accurately measure the tensile strength of sands at low moisture contents. These measurements were made through the use of a newly developed direct tension apparatus and technique which are able to produce highly accurate results. The magnitudes of the tensile strengths of these moist and relatively clean sands are not equal to zero, as is widely assumed. Tensile strength increases with increasing moisture content and this trend is more noticeable at increasing relative densities. The influence of tensile strength in geotechnical problems was also examined by considering a simple rigid circular footing in sandy soil. It clearly shows that a small amount of tensile strength can significantly enhance the stability of a geotechnical system.
Keywords
Direct tension device; Moist sand; Moisture content; Relative density; Tensile strength;
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Times Cited By KSCI : 1  (Citation Analysis)
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