Application of recycled glass powder in concrete production: a sustainable solution for transportation infrastructure

This study evaluates the effectiveness of recycled glass powder from waste as a cement replacement material in concrete. Experiments were conducted with replacement ratios of 10%, 20%, and 30% of cement with glass powder having particle sizes of 75-150 μm. Results indicate that at replacement ratios of 10-20%, concrete still achieves 93-96% of the compressive strength of traditional concrete at 28 days, meeting the technical requirements for M200 grade concrete. At a 30% ratio, strength significantly decreases, reaching only 78% compared to the control sample. Analysis shows that glass powder is effective through pozzolanic reaction and microfiller effect, despite slower strength development in the early stages. This solution not only helps process non-biodegradable glass waste but also reduces CO₂ emissions from cement production, showing potential for application in various transportation infrastructure elements.