Physical properties and acid resistance of geopolymer mortar prepared from synthetic water containing hydrochloric acid

Abstract

This article describes an experimental research to evaluate the physical characteristics and performanceof geopolymer mortar synthesized with synthetic water containing strong acidic substance after 28, 56, and 84 days of curing in the laboratory. Two distinct geopolymer mortar mixes were created based on previous investigations: controlled geopolymer mortar (CGM) and test geopolymer mortar (TGM). The control geopolymer mortar utilized demineralized water to produce the alkaline reactant solution that activated the fly ash, while the test geopolymer mortar employed synthetic water containing 100 mg/L hydrochloric acid. Characterization tests were carried out after the 28-day assessment of physical characteristics to determine the changes in morphology and elemental composition. A change in morphology and elemental composition was discovered through characterization. Following characterization testing, acid resistance tests on CGM and TGM specimens were conducted by immersing in 2 percent hydrochloric and sulphuric acid solutions, respectively. According to the findings, the TGM combination showed better physical characteristicsand demonstrated increased resistance to acid attacks.