This study partially replaced cement and coarse aggregate with recycled ceramic and glass waste , and then analyzed the mechanical behaviour of the resulting concrete. Various replacement ratio were prepared for concrete mixes, then compression,splitting tensile and shear strength were perfomed after 28 days of curing. Empirical equations were developed using regression analysis, where the compressive strength was related to the tensile and shear strengths.After analysis , strong, positive relationships were revealed, with a coefficient of determination R2 0.995. This value indicates a high accuracy of the produced models and can provid reliable tools for designing sustainable concrete mixes. Regression analysis also revealed the limitations of predicting the behaviour of modified concrete using convential equations.
Sarah Aldabagh (2025) studied this question.