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The present study aimed to develop self-leveling geopolymeric mortars using EGAF and MC as precursors, along with an activating solution composed of Sodium Hydroxide, Potassium Hydroxide, and Alkaline Sodium Silicate. The initial formulation was defined in a mass ratio of 1:1:0.40:0.80 (precursors, fine aggregate, hydroxides, and Sodium Silicate), with the molarity of the activating solution varying between 5M, 7,5 M, and 10M. The mortars were evaluated through flow spread and compressive strength tests. X-Ray Fluorescence (XRF) analysis was performed to characterize the precursors. The mortars that met the criteria for flow spread and compressive strength were then subjected to a series of complementary tests, including flow retention, regeneration time, setting time, rheological parameters, compressive and tensile strength, linear shrinkage, specific mass, void index, water absorption, and efflorescence. It was observed that the mortars exhibited efflorescence and significant linear shrinkage from the early curing days, indicating the need for adjustments in the formulation. Based on the obtained results, a new mix design was formulated with a mass ratio of 1:0.47:0.25:0.51 (precursors, fine aggregate, hydroxides, and Sodium Silicate) and an activating solution molarity of 7,5M. This adjustment resulted in a significant improvement in properties, particularly in reducing efflorescence and linear shrinkage, as well as an increase in mechanical strengths. The compressive strength reached 69 MPa at 28 days, indicating the possibility of application in other contexts, particularly in structural repairs, such as repairs in beams, columns, slabs, and foundations. The sustainability analysis of the mortars indicated a reduction in CO¢ emissions in geopolymeric mortars compared to CP; however, there were substantial increases in SOx and NOx emissions, which may generate additional environmental impacts, such as acid rain and deterioration of air quality. The research concludes that the synthesized geopolymers have great potential for this application.