REVIEW ON 3D CONCRETE PRINTING TECHNOLOGY: SUGARCANE BAGASSE ASH AS SUPPLEMENTARY CEMENTITIOUS MATERIAL, MECHANICAL PROPERTIES AND DURABILITY

This Paper explores the potential of sugarcane bagasse ash (SCBA), a byproduct of the sugar industry, as a partial replacement for cement in 3D concrete printing (3DCP). With the growing adoption of 3D printing technology in construction for faster, cost-effective, and sustainable building solutions, the use of alternative cementitious materials has gained significant attention. SCBA is rich in silica and exhibits pozzolanic properties that can enhance the mechanical and durability performance of concrete. Previous studies indicate that replacing cement with SCBA up to 20%, in increments of 5%, can improve compressive and tensile strength, reduce water absorption, and increase resistance to chemical attack. Despite these benefits, challenges persist in achieving optimal mix designs that balance printability, buildability, and structural performance in 3D printing applications. This review highlights SCBA’s potential as an eco-friendly material that promotes waste utilization and reduces dependence on conventional cement. It also identifies key research gaps related to mix design optimization and performance consistency in 3D printed concrete, emphasizing the need for further investigation to fully harness SCBA’s benefits in sustainable construction practices.