SWCC of crushed bentonite under high suction ranges

Abstract

This study focused on soil-water characteristic curve (SWCC) such as hydro-mechanical properties for crushed bentonite The SWCC recognized as significant physical property, play to evaluate hydro conductivity and swelling property High suction was applied used vapor pressure technique with various salt solutions. The controlled suction ranges had from 2.8 MPa to 296 MPa in this tests that could corresponded to ranges from 98 % to 11 % in RH (i.e. relative humidity). SWCCs were measured to crushed bentonite having two different dry densities thought drying and wetting process. Also, swelling pressure was observed in one-dimensional condition.