Development of Sustainable and Durable Concrete using Recycled Materials

The construction industry is one of the largest consumers of natural resources and a significant contributor to environmental pollution. As sustainability becomes a major focus, the use of recycled materials in concrete production offers a promising solution to reduce environmental impacts. This paper presents the development of sustainable and durable concrete by incorporating recycled materials, such as recycled aggregates (RA), recycled concrete aggregates (RCA), and industrial by-products like fly ash, slag, and recycled glass. The aim is to explore how the substitution of traditional materials with recycled components affects the mechanical properties, durability, and sustainability of concrete. The study investigates the effect of these recycled materials on the compressive strength, workability, shrinkage, and long-term durability characteristics such as water absorption, resistance to aggressive chemical attack, and freeze-thaw durability. The findings show that while recycled aggregates impact the mechanical strength, proper mix design and the use of supplementary cementitious materials can significantly enhance the sustainability and durability of concrete. The use of recycled materials in concrete not only reduces environmental impact but also contributes to the conservation of natural resources.