Compressive Strength of Mortar Made with One-Part Geopolymeric Binder

One-part geopolymer concrete is an advancement over the conventional two-part geopolymer concrete. In this study, a geopolymeric binder was prepared in powder form containing slag as a precursor material, and sodium silicate and sodium carbonate as alkaline materials. Characterization of the developed binder was done with the help of a laser particle size analyzer and scanning electron microscopy (SEM). The effect of heat curing and ambient curing was investigated in order to achieve target compressive strength in cement mortar. Results of this investigation revealed that mortar prepared from a one-part geopolymeric binder containing 90% slag and 10% alkaline material achieved more than 20 MPa 28-day compressive strength, which is significant for its utilization as bricks.