Time effects on the unconfined compressive strength and sensitivity of a clay

Unconfined compression tests have been carried out on a highly plastic clay using three different strain rates: fast, medium and slow. Results of the t strength with increased strain rate for both the undisturbed and remoulded soil, although the increase was more pronounced in the undisturbed cases tha leading to an increase in sensitivity. It is therefore recommended that sensitivity be defined for a particular strain rate, or that an acceptable incr rate be defined for both undisturbed and remoulded soils.