FLY-ASH BASED GEOPOLYMER MORTAR FOR PAVING BLOCKS: MECHANICAL PERFORMANCE AND MICROSTRUCTURE ANALYSIS. International Journal of Geomate, [S. l.], v. 30, n. 137, p. 33–42, 2026. Disponível em: https://geomatejournal.com/geomate/article/view/5216. Acesso em: 19 oct. 2026.