Effect of Temperature on Triaxial Behavior of a Sand with Disaccharide

Abstract

Disaccharides are carbohydrates consisting of two monosaccharides, currently introduced as soil improvement additives and an alternative material for identifying the structural behavior of a sand in small-scale model tests. In this experimental study, a type of disaccharide (i.e., sucrose) was used at two different temperatures to investigate the undrained triaxial compression testing of Leighton Buzzard Sand. The materials, specimen preparation and test methods are described, as are the results of a suite of triaxial tests in a temperature controlled cell in which deviatoric stress, pore water pressure and local strain were measured. The results describe unusual behavior involving deviatoric stress and pore water pressure jumps when employing a relatively higher temperature (60°C). However, the results suggest that specimens tested at room temperature (23°C) could suppress dilatancy without any jumps observed in deviatoric stress and pore water pressure.