6th Workshop on The New Boundaries of Structural Concrete 2022 University of Salento – ACI Italy Chapter

Abstract

Geopolymer cement is a viable alternative to ordinary cement in order to significantly reduce the emission of carbon dioxide related to the construction of concrete structures. Being made up of waste materials, geopolymer cement also helps to limit the use of new raw materials, leading to a considerable reduction of the environmental impact of the construction industry. During the last years, the use of Geopolymer Recycled Aggregate Concrete (GRAC) in structural members has been studied in several recent experimental research in which the behavior of either the material or structural member was investigated. A review paper will be done critically to compile the present research on the use of GRAC in construction. It will cover the factors affecting its strength i.e., recycled aggregate’s replacement ratio, as well as the effect of different materials composition in GRAC. The problems related to the strength of GRAC structural members, their tensile and flexural behavior will also be addressed. It will also help in finding the future prospects of the use of geopolymer recycled aggregate concrete in construction.