Experimental study on the behavior of a plasticine material

Abstract

This paper presents an experimental study, which includes the oedometer test and isotropic creep test, on the compressibility and the creep effect of the plasticine materials. The Compression Index (Ccε), Rebounding Index (Crε) and creep coefficient (Cαε) are obtained from the test results. However, it can be observed that there is almost no loop in unloading-reloading stages of stress-strain relationship, which is different from most soil test results. By means of the Scanning Electron Microscope, it could be found that the compression of the plasticine is mainly due to the porosity decrease and the structure flocculence, which is nonrecoverable.