Experimental Study on the Influence of Lateral Stress and Drying on Creep Poisson's Ratio of Concrete

Abstract

In this study, creep characteristics of concrete under multiaxial stress caused by uniaxial loading in confined conditions are experimentally investigated. Focus is hereby given to the creep Poisson’s ratio with regard to different degrees of lateral confinement as well as different drying conditions. The unconfined and confined specimens with the steel tube are used in the creep test. As results of the test and reproducing calculation based on the theory of elasticity, Poisson’s ratio of concrete obtained by instantaneous loading test could be also used as creep Poisson’s ratio regardless of conditions of lateral stress and drying.