Investigations on the Behavior of Alum-slag and Albite Based Geopolymer Mortar in Relation to the Type of Alkaline Solution

shady khairy

doi:10.66632/eei-2026-24

Authors

shady khairy Department of Civil Engineering, Higher Technological Institute, 10th of Ramadan City, Egypt Author shady.khairy@hti.edu.eg

https://doi.org/10.66632/eei-2026-24

Keywords:

Aluminum slag, Pozzolanic activity, Geopolymer mortar, Alkaline- Activators, Alkali-aggregate reaction

An experimental investigation on the efficient use of Albite and red mud (aluminum slag) in geopolymer mortar is presented in this publication. For varying mix proportions, alka-line activators based on sodium were combined with sodium meta silicate (Na₂SiO₃). The Na₂SiO₃/NaOH ratio and the molarity of the NaOH solution served as the study's parame-ters. Three concentrations of NaOH (8, 12, and 16 molars) were examined. The findings demonstrated that the factors under investigation had a major impact on the characteris-tics of the geopolymer mortars that were created. The accelerated mortar bar test (AMBT), workability, setting time, and pozzolanic activity were examined and reported.

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