Abstract
The effect of specimen size on consolidation parameters in standard oedometer tests was investigated though laboratory testing. To take into consolidation the application of a small diameter sampler with two chamber hydraulic pistons in practical use, the specimen sizes used in the standard oedometer tests were a small specimen (d 30 specimen) of 3 cm in diameter and 1 cm in height and a standard size specimen (d 60 specimen) of 6 cm in diameter and 2 cm in height. The d30 and d60 specimens have similar consolidation behaviors for the undisturbed samples with Ip-values ranging from 27 to 81%. Keywords: cohesive soil, size effect, consolidation parameter, oedometer test.
