Predictive modeling of concrete properties with waste glass powder as a partial cement replacement

Abstract The accurate analysis and design of structural concrete elements containing waste glass powder (GP) require a comprehensive understanding of their mechanical behavior and associated equations. Fortunately, extensive research has been conducted over several decades on various properties of concrete that incorporates GP, contributing to an improved understanding of this concrete type. In this study, experimental data from 22 peer‐reviewed journals on GP‐containing concrete were collected, statistically analyzed, and then used to develop equations for predicting various concrete properties, including compressive strength, splitting tensile strength, concrete compressive strain at peak compressive strength, concrete tensile strain at peak tensile strength, and the compressive stress–strain behavior up to peak compressive stress. The prediction accuracy of the developed models was evaluated using various statistical performance metrics. Interestingly, the analytical results revealed a minimal impact of GP particle size on predicting various mechanical properties of GP‐modified concrete, rendering it a negligible factor. Conversely, both the compressive strength of GP and the GP percentage of cement replacement used exhibited strong correlations with the key concrete properties investigated in this study, highlighting their significant influence as independent variables. The proposed equations provide accurate predictions of the experimental data reported in the literature. They can be used to analyze and design structural elements made of GP‐modified concrete.