Flow and Strength Characteristics of CLSM Using Ground Granulated Blast Furnace Slag

Abstract

Controlled low strength material (CLSM), as defined by the American Concrete Institute (ACI) Committee, is a self-flowing cementitious material consisting typically of portland cement, fine aggregates, supplementary cementing materials, and water. In this present experimental study, industrial by-product, namely, ground-granulated blast-furnace slag, is used as a constituent material in CLSM. Mixture proportions were developed for CLSM containing the industrial by-product (GGBS) and were tested in the laboratory for flow and unconfined compressive strength properties. The cardinal aim is to analyze the experimental data generated to formulate a phenomenological model to arrive at the combinations of the ingredients to produce CLSM to meet the desired flow and strength. An independent set of data is generated to examine the validity of the phenomenological approach.