EFFECTS OF EPS BEADS AND CEMENT CONTENTS ON DESIGN PARAMETERS FOR EPS BEADS-MIXED LIGHT-WEIGHT GEOMATERIAL USED FOR SUBGRADE SOIL

Abstract

This study investigated lightweight geomaterial mixed with expanded polystyrol beads as subgrade soil about the design parameters. The base material of composit geomaterial in this study used high moisture content volcanic cohesive soil (Kanto loam). The base material was mixed with super-lightweight EPS beads and with portland cement.After each specimen is compacted, they are cured in the laboratory for 7 days before the tests. This study, as a part of our studies to make clear the design parameter of lightweight geomaterial mixed with EPS beads as subgrade soil, conducts the CBR test, the resilient modulus test, to find out the design parameter of lightweight geomaterial mixed with EPS beads.