ABSTRACT

The amount of waste produced during building and demolition is growing daily, but recycling construction waste is crucial to protecting natural resources. Using the remnants of destroyed concrete as recycled concrete aggregate conserves natural resources and lessens the burden on landfills. The goal of the current investigation is to evaluate how recycled concrete aggregates affect the strength of a nominal concrete mix. A study was conducted to ascertain the effects of recycled concrete aggregates on the M20 nominal concrete grade's strength. 0%, 25%, 50%, 75%, and 100% of recycled aggregate replaced some natural aggregates in terms of weight. Laboratory testing was done on concrete cubes that had been cast. Workability testing, sieve analysis tests, mix, casting, vibration, and compressive strength tests were carried out. The properties of both natural and recycled aggregates were investigated. According to the findings, when recycled aggregate is replaced with natural aggregate up to 30% of the time, the strength of the concrete is somewhat reduced compared to conventional concrete.