TI  - Enhancing geopolymer mortars: The impact of Algerian metakaolin substitution on mechanical performance and sustainability
AU  - HEBBACHE, K.
AU  - DOUADİ, A.
AU  - HAMDİ, O.M.
AU  - BOUTLİKHT, M.
AU  - MESSAİ, A.
AU  - KHİTAS, N.E.H.
AU  - BELEBCHOUCHE, C.
SO  - Sigma Journal of Engineering and Natural Sciences 2026;44:2937-2951.
DO  - 10.14744/sigma.2026.2136