Compressive Behavior and Durability of Concrete Containing Waste Aggregates as A Replacement of Coarse Aggregates and Marble Powder as a Replacement of Cement

Green concrete can be produced as environmentally friendly concrete using recycled materials. In this study, the compressive and endurance behavior of green concrete containing waste aggregates as a replacement to coarse (gravel) and cement-replaced marble powders was evaluated experimentally. In the present research, 10 mix designs in addition to the control sample mix design were constructed and compared. The main variables included the volume percentage of waste aggregates as replacement sand with percentages of 0, 25, 50 and 100, and the volume percentage of marble powder as replacement cement with percentages of 0, 10 and 20. Compressive strength at 28 days and water absorption percentage and density tests were performed to evaluate the endurance of concrete. According to the results, gravel substitute waste stone had a negative effect and cement substitute marble powder had a positive effect on the compressive strength of concrete. By replacing gravel with 100% waste stone, approximately 49% reduction in strength was observed compared to the control sample, and by replacing cement with 10% marble powder, approximately 13.4% increase in resistance was observed compared to the control sample, demonstrating the minimum and maximum changes in compressive strength of concrete compared to the control test, respectively.