An Experimental Study on Settlement for Gypseous Soil Using Electrical Method

Abstract

This paper provides an experimental study on the effect of electro-osmosis in improving the properties of gypseous soil ,two type of gypseou s soil used in this study with gypsum content of 30% and 60%. the test modle in inner size (30x30x30)cm ,water tank (50x50x35)cm and arectangular plate (5x5)cm used to simulate arigid foundation.Time settlement tests were performed for the 10 volt model in addition to the reference readings (without applying any voltage for comparison )with the applied load change where a load (20and28) T/m2used. Boundary conditions that considered as variables were the gypseous content , time , load apply and corresponding settlement. Conditions such as vertical load, depth and geometry of electrodeThe results showed a general trend of improvement where it was found percentagof emprovement increases with increasing The gypsum content due to the movement of salt ions within the soil from the anode towards the cathode reducing the occurrence of settlement.