Investigation of mechanical properties of RCA-based geopolymer concrete

Abstract

Traditional concrete shows poor characteristics under various loading conditions, such as relatively low tensile and compressive strength due to its heterogeneous and brittle nature. Due to its large- scale availability, it is widely used as a construction material for civil structures; to enhance the mechanical and durability characteristics of concrete, we should incorporate innovative materials in place of ordinary Portland cement concrete. In recent years, incorporating industrial by-products in cement-based concrete has been shown to improve mechanical and durability properties of concrete, and it also decreases environmental damage. Incorporating RCA in place of NA also promotes sustainability by promoting the reuse of construction and demolition waste. This study aims to investigate the mechanical properties of RCA- based geopolymer concrete, OPC-NA, and OPC-RCA.