Evaluating Performance of Concrete Consisting of Recycled Concrete Aggregates: Review

Abstract

The global construction industry faces profound challenges related to resource depletion, environmental degradation, and waste generation. Concrete, being the important ingredient of construction, contributes significantly to these challenges due to its heavy reliance on natural aggregates. Disposal of construction and demolition waste further exacerbates environmental burdens. In response, scientists are looking for environmentally friendly substitutes, and recycled concrete aggregates (RCA) are showing this potential as a concrete manufacturing material. RCA, which is made from crushed aggregate waste, lowers the need for natural aggregates while diverting a sizable amount of waste away from landfills. There are numerous technical, financial, and environmental advantages of incorporating RCA into concrete. The environmental detrimental effect of aggregate extraction as well as transportation expenditure can be considerably reduced by employing RCA in place of natural aggregates. This helps to preserve natural resources, lowers energy use and emission of greenhouse gases throughout the course of the construction process. Overall, it has been established that using RCA is probably a good choice for structural application. In this paper experimental investigation of other researchers is studied relating to recycling and reuse of demolished waste concrete for new construction. Paper also includes compressive discussion on past literature relating to use of RCA, its effects on concrete properties, and the large-scale impact of RCA on structural members.