Construction and Demolition Waste Utilisation as Recycled Concrete Aggregate in Concrete: A State of Art

Abstract

Construction and demolition waste (CDW) is a serious environmental problem since it causes greenhouse gas emissions and the loss of natural resources. However, CDW may be efficiently utilized again in concrete as RCA (recycled concrete aggregates). Concrete may use RCA in lieu of natural aggregates to lessen the environmental effect of CDW disposal and the need for natural resources. This article gives a general review of RCA's possible use in concrete, including its physical, mechanical, and durability characteristics as well as the advantages it offers in terms of both the environment and the economy. It also emphasizes the difficulties and possibilities related to the use of RCA in concrete. Construction and demolition waste (CDW), which is estimated to have been produced across the globe in excess of 2.01 billion tonnes in 2016, is a major environmental hazard. Recycling CDW for use in building may reduce the quantity of waste dumped in landfills and lessen the negative environmental effects of the construction sector. The usage of CDW as recycled concrete aggregate (RCA) in the creation of concrete is examined in this book. The characteristics of RCA, their impact on the performance of concrete, and the difficulties and advantages of using RCA in concrete are all covered in the article.