Mechanical Properties of Recycled Construction And Demolition Concrete Waste As Aggregate For Structural Concrete

Abstract

This study focuses on concrete manufacturing using recycled material instead of natural coarse aggregate to achieve the desired strength. Few mechanical and physical properties govern recycled coarse aggregate concrete strength. Several concrete specimens are made using recycled aggregate and compared to fresh concrete. This study also examines reuse aggregate with consistent concrete mix of M20 and water cement percentage, two different ages have been taken with a 30-year age difference, and a few samples were cast and compared to conventional cement. Few studies have examined this fine aggregates, yet nobody has advised against using it for building. This project uses reused aggregate in concrete and creates laboratory-based results by crushing concrete specimens (cubes and prisms) at the lab. 21 cubes and 21 prisms are did cast and checked for 28 days, and 9 cubes and 9 pyramids are casted by one age of reused accumulation with various substitutions of instinctual coarse aggregate like 30%, 60%, and 100%. The additional 9 cubes and 9 beam splitters were also cast using age two reused aggregate and virgin coarse aggregate. The M20 mix conventional concrete was used to mould the remaining 3 cubes and 3 prisms. Recycled coarse aggregate reduces concrete waste, ecological difficulties, and the negative effect of natural normal aggregate exploitation. In this project, I will recycle construction solid waste from the demolition of a concrete structure. From this concrete waste, we can extract aggregate and use it to replace natural aggregate. Emerging nations and cities struggle to manage construction waste. This study tests if recycled aggregate from demolition trash can be utilised to build concrete structures and whether it has the same strength as natural coarse aggregate. This copper slag has been gathered from various locations and ages, separated, crushed, cleansed, sieved, and utilised for experiments with a control mix of M20 to replace locally available concrete mixtures in proportions of 30%, 60%, and 100%.