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Geotechnical Characteristics of Clays Reconsolidated at High Temperature  

이강일 (대진대학교 토목공학과)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.2, 2003 , pp. 7-14 More about this Journal
Abstract
A series of laboratory tests, which can show how different curing conditions influence an aging effect on clay, were carried out for the clay samples collected in the area of Kwangyang Bay and Mokpo. Clay samples were remolded and reconsolidated under three different curing temperatures (20, 50, and 80 degree Celsius) and low different curing durations (1, 7, 14, and 40 days). To find out an aging effect and geotechnical characteristics between undisturbed samples and reconsolidated samples, laboratory tests, consisting of uniaxial compression tests, CU triaxial test, and consolidation tests, were preformed. Results showed that the compression index ratio is very useful factor to indicate the aging effect of natural clays. Also geotechnical characteristics of clays reconsolidated at high temperature were very similar to those of undisturbed clays. Finally, curing temperature and curing duration influenced an aging effect on clays. The best curing condition was 80 degree Celsius and 27 days.
Keywords
Aging effect; Compression index ratio; Curing temperature; Reconsolidated clay at high temperature;
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