Abstract
The partial replacement of fine aggregate with pulverized glass in concrete production is a promising avenue for sustainable construction practices.
This study investigates the effects of varying percentages of waste glass replacement on the compressive strength of concrete at different curing durations.
At the 7-day mark, a diverse range of compressive strengths is observed across the different waste glass replacement percentages. Notably, samples with 25% waste glass replacement exhibit the highest compressive strength at this stage, followed closely by samples with 5% replacement. Conversely, samples with 15% and 20% replacement show slightly lower strengths, while those with 0% and 10% replacement display intermediate strengths. Advancing to the 14-day interval, significant variations in compressive strength are observed among the samples. Surprisingly, samples with 5% replacement display the highest strength, while samples with higher replacement percentages show lower strengths. As the curing duration progresses to 21 days, a mixed pattern in compressive strength emerges. Samples with 10% and 25% replacement exhibit increased strengths compared to the previous interval, while others show either slight increases or decreases in strength. Finally, at the 28-day mark, further variations in compressive strength are observed. Samples with 25% replacement exhibit the highest strength, while samples with 5%, 10%, and 20% replacement display relatively stable strengths. In contrast, samples with 0% and 15% replacement show either slight increases or decreases in strength. The study provides valuable insights into the mechanical properties of concrete with partial replacement of fine aggregate with pulverized glass. These findings contribute to the optimization of concrete mix designs and the advancement of sustainable construction practices.
