Displacement rate effects during T-bar cycling in remoulded Gulf of Mexico clay

The influence of the displacement rate of a T-bar on the remoulded shear strength of a soft, natural, lightly overconsolidated marine clay is investigated. A series of T-bar cyclic tests was carried out in 12 box cores collected from the Gulf of Mexico. One general equation relating the displacement rate to the remoulded strength is presented, which provides insight on rate effects for remoulded clays and which can be used to correct for remoulded penetration resistance data for natural soft clays for a T-bar recorded at displacement rates other than the commonly used displacement rate of 0·020 m/s.