Performance Evaluation of Sustainable Artificial Coarse Aggregates Produced From Waste Glass Powder And Ggbs For Structural Concrete Applications

Abstract

There is a depleting availability of natural coarse aggregates, and a growing production of industrial waste, which has stimulated the search for sustainable alternatives for structural concrete. Artificial coarse aggregates made of waste glass powder and ground granulated blast furnace slag (GGBS) can be a very good alternative, in which detailed evaluation of the structure performance is required. A simulation-based assessment is performed in the present study, through a three-dimensional finite element model, developed in ABAQUS software and used the Concrete Damage Plasticity (CDP) model. Five proportioned concrete mixtures were studied; 25%, 50%, 75%, and 100% of the natural aggregate replaced by artificial aggregate. Five proportions of concrete were analyzed under the compressive load using 0%, 25%, 50%, 75% and 100% replacement of natural aggregate by artificial aggregate. Maximum von Mises stress, total deformation, predicted compressive strength, structural stiffness, and durability index were used to assess the performance. The 50% replacement mixture showed the most optimum structural performance, the highest maximum von Mises stress of 62.8 MPa and the highest predicted compressive strength of 62.8 MPa and highest structural stiffness of 26.8 kN/mm, while the AA100 mixture showed the minimum total deformation of 0.62 mm and was found to have the most optimum predicted durability performance.