SITHOLE, B. M.; THUO, J. N.; OWAYO, A. Alum Sludge-Rice Husk Ash based Geopolymerization for the Improvement of Expansive Clays used in Road Pavements. Engineering, Technology & Applied Science Research, Greece, v. 15, n. 3, p. 22401–22410, 2025. DOI: 10.48084/etasr.10239. Disponível em: https://etasr.com/index.php/ETASR/article/view/10239. Acesso em: 25 oct. 2025.