Experimental Study on Lightweight Concrete using EPS and Fly Ash

More people want to use eco-friendly building materials, so there's been a lot of work on making lightweight concrete with different materials. Regular concrete is quite heavy on its own, which adds to the weight that structures have to support. To solve this problem, the current study looks at testing lightweight concrete made with Expanded Polystyrene (EPS) beads and fly ash. Using these materials helps lower the weight of concrete and makes better use of waste products from industries. EPS beads are used instead of some of the usual large stones in concrete, and fly ash is added to help the cement mix work better. EPS is a light material that helps make concrete lighter per unit. Fly ash can help improve the performance of the binding material and enhance certain qualities of concrete when used in the right amounts. The study looks at using EPS and fly ash together to see how they affect the properties of concrete when it's still wet and after it has dried and hardened. The experiment includes six different concrete mixtures, labeled M1 through M6, where each mix has a different amount of EPS replacing the regular material, specifically 0%, 10%, 20%, 30%, 40%, and 50% respectively. Standard cube specimens measuring 150 mm in each side are made and tested at specific curing times. The slump test is done to check how easy it is to work with fresh concrete. Tests for density and water absorption are done to check the weight of the concrete after it has hardened and how much water it can absorb. The compressive strength test is done to check how strong each mix becomes over time. The results from the experiments help look at how replacing EPS affects the performance of concrete. Putting more EPS into the concrete mix is likely to make the concrete lighter, but it might also change how easily it works with tools, how strong it gets when pressed, and how much water it can soak up. So, the study wants to find the right amount of EPS to use that keeps the concrete light but still works well. In summary, this study looks into how EPS and fly ash can be used to make lightweight concrete that works well for different construction uses. The results could help create concrete that uses resources more efficiently, as long as the strength, durability, and other performance standards are met.