TY - JOUR T1 - Nano-cellulose and biochar reinforced fly ash–ggbs based geopolymer concrete: a sustainable pathway to enhanced strength and durability JO - Matéria (Rio de Janeiro) A1 - Alagarsamy, Ramya A1 - Ganesan, Lavanya SN - 1517-7076 UL - 10.1590/1517-7076-RMAT-2025-0694 VL - 31 Y1 - 2026 PB - Brasil ER -