Comparison And Strength Characteristics of Cements For Cement-Stabilization For Dredged Surface Soil

Abstract

The purpose of this study was to investigate the applicability of new cement developed to be used for cement-stabilization for surface soil on a ground filled with dredged soil with high water content. In order to do so, ordinary Portland cement (OPC), ordinarily used for cementstabilization for surface soil, blast furnace slag cement, and a new type of cement were mixed with dredged soil and a uniaxial compression test was performed. Uniaxial compression test results obtained by varying cement types, cement weight per unit volume, and water-cement ratio were analyzed. When the same amount of cement was added and the water-cement ratio was the same, Uniaxial compression strength was stronger for the specimen with the newly developed cement than the specimen with OPC or blast furnace slag cement using the same ratio of additives and water-cement ratio. Also, a test to measure elution of harmful material from the specimen pursuant to the TCLP was performed, and the result showed that Result 6 is environmentally safe as harmful materials including Chrome were not detected. Copyright © 2008 by The International Society of Offshore and Polar Engineers (ISOPE).