Physical and Mechanical Properties of Calcinated Materials under Various Curing Conditions

Abstract

This article aims to demonstrate that cement may be substituted with calcined materials and to determine the rheological properties of calcined materials utilized in developing a geopolymer mortar, such as normal consistency, setting time, and compressive strength. The new technology may determine conventionally or geopolymer cement's physical and mechanical characteristics. First, however, studies on the total replacement of fly ash with GGBS (0–100%) with various concentrations of sodium hydroxide (8M and 10M) with a Sodium Silicate/Sodium Hydroxide (SS/SH) ratio of 2.5. This research would also serve as a model for future researchers in this sector. As a result, the features of geopolymer paste and mortar to cement were examined in this study under various curing techniques. The results of the tests showed that adding additional GGBS to geopolymer paste reduces the setting time of the paste and raises the standard consistency value for intermediate mixes when compared to fly ash mixtures. The study's key conclusion was that increasing the sodium hydroxide concentration improved the properties of the mortar when compared to ordinary cement mortar. As a result, the maximal strength for 10M under oven and outdoor curing is greater than that of any other mix.