Effect of Recycled Broken Glass and Stone Aggregate Contents on the Compressive Strength of Concrete

The development of urbanization, combined with the growth in population, has resulted in a rapid increase in the amount of domestic solid waste. This has caused a significant burden on efforts to protect the environment and has a direct impact on the lives of humans. Glass that has been broken on building sites is typically thrown away and should be recycled. The mixing of this recycled broken glass into concrete has contributed to make the environment a better place while also reducing the pressure on materials that are in limited supply in building materials, such as stone aggregate. In the experiments that are presented in this paper, recycled broken pieces of glass are used to partially or entirely replace the elemental stone aggregate that is typically found in concrete. Recycled pieces of broken glass, with the percentage of stone aggregate in the concrete being replaced by glass varying from 0 to 30%, 50%, 70%, and 100%, respectively. When the recycled glass content of the concrete sample is increased to above 70%, the compressive strength of the concrete sample decreases from 10 to 20% compressive strength when 100% recycled glass is used. The results of the research show that the recycled glass content of 30% glass aggregate in concrete is the most optimal.