Reviewing Some Properties of Concrete Containing Recycled Concrete Aggregates

Abstract

Concrete being most commonly used construction material, is largely responsible for exhaustion of natural resources. The construction activities around the world generate millions tons of Construction and Demolition Wastes (CDW) every year. This waste generated from the construction activities and demolition of old structures is becoming a major concern for the modern society. Thus, the construction industry is more attracted towards the use of alternate materials so that the impact of CDW is reduced. The use of Recycled Concrete Aggregates (RCA) as a replacement of Natural Aggregates (NA) may help to conserve the natural resources and reduce the environmental impact. This paper presents a review on the production and properties of RCA. The properties of concrete made with RCA are also presented.

Keywords: Recycled concrete, aggregates, construction and demolition waste, natural aggregates