INFLUENCE OF PROCESSING PROCEDURES ON STRENGTH OF SAND STABILIZED WITH CATIONIC BITUMEN EMULSION

Abstract

THIS FIRST OF TWO PAPERS THAT DESCRIBE A LABORATORY STUDY OF THE FACTORS AFFECTING THE SHEAR STRENGTH OF A UNIFORMLY GRADED SAND STABILIZED WITH CATIONIC BITUMEN EMULSION IS CONCERNED WITH THE EFFECT OF MIXING PROPORTIONS, MIXING PROCESS, COMPACTION, AND CURING ON THE STRENGTH OF SAND-CATIONIC EMULSION MIXES. TRIAXIAL TESTS HAVE BEEN USED TO ASCERTAIN THE EFFECTS OF EMULSION CONTENT ON THE COHESION AND ANGLE OF SHEARING RESISTANCE OF STABILIZED SAND. UNCONFINED COMPRESSION TESTS WERE USED TO INVESTIGATE THE INFLUENCE OF THE VISCOSITY OF THE BASE BITUMEN AND ALSO THE EFFECT OF VARYING THE INITIAL MOISTURE CONTENT OF THE SAND. THE ADDITION OF FILLERS OF VARIOUS TYPES SUCH AS CEMENT, HYDRATED LIME, CRUSHED LIMESTONE, AND THE SAND HAS BEEN EXPERIMENTED WITH, AND THEIR INFLUENCE ON SHEAR STRENGTH HAS BEEN DETERMINED. A STUDY OF THE EFFECT (ON STRENGTH) OF CHANGING THE ORDER OF ADDITION OF INGREDIENTS DURING MIXING IS DESCRIBED. THE EFFECT OF AGING ON THE UNCONFINED COMPRESSIVE STRENGTH OF STABILIZED SAND IS REPORTED. /AUTHOR/