Evaluation of self-compacting geopolymer concrete properties containing different water glass solutions

Abstract

This research investigates how water glass solutions (Ms 1.99 and Ms 2.92) impact the standard consistency, setting time, rheological properties, and mechanical and microstructural characteristics of self-compacting geopolymer concrete (SCGC) with various amounts of fly ash, ground granulated blast furnace slag (GGBFS), and rice husk ash (RHA). Six Self compacting geopolymer concrete (SCGC) samples were prepared from each of the two glass water solutions. Mechanical properties, such as compressive, split tensile, and flexural properties, were evaluated for the blends. Compared to Ms 1.99, concrete using water glass solution Ms 2.92 had a standard consistency of 49%, and the setting time was increased from 1100 to 1250 min. The Ms. 2.92 combine improves workability. Mechanical properties revealed that 28-day-cured concrete with Ms 2.92 water glass solution had the highest compressive strength of 55.6 MPa and achieved the highest split tensile and flexural strengths, 6.67 MPa and 10 MPa, respectively. XRD, SEM, EDX, and FTIR are used to investigate SCGC's microstructures.