RECYCLED AGGREGATE IN FLY ASH CONCRETE: PRACTICALITY AND EFFICIENCY FOR ECO-FRIENDLY CONSTRUCTION

The need for building materials is rising dramatically due to the world’s population growth, particularly in emerging nations. This puts more pressure on civil engineers to provide affordable, environmentally friendly materials that meet human demands. Fly ash is an industrial by-product whose production and usage have multiplied over the last three decades. It can be utilized to create environmentally friendly materials and is highly exploitable. These days, fly ash serves four purposes: it reduces air and water pollution and increases demand for affordable, high-quality building materials. The primary emphasis of research is on fly ash aggregate production techniques. After testing and comparing these fly ash aggregate’s characteristics to those of natural aggregate, the research concludes that fly ash aggregate may be used in concrete in lieu of aggregate. Studying the density and strength characteristics of concrete formed with both natural and manufactured fly ash aggregate and gravel, it was determined that although the addition of fly ash aggregate to concrete lowers its compressive strength, it still satisfies the requirements to be utilized as a structural material.