Investigation of Characteristics of Sustainable Geopolymer Concrete ; A review

Geopolymer concrete (GPC) is considered a highly advanced form of concrete following ordinary Portland cement (OPC) concrete. GPC offers numerous benefits, such as enhanced strength and durability properties. The rapid development of strength at an early age and the ability for ambient curing in GPC contribute to reduced construction time. The strength characteristics of GPC are influenced by factors like binder materials, alkali-activated solution, and curing methods. Incorporating industrial byproducts like fly ash and ground granulated blast-furnace slag (GGBS) into GPC results in advantages such as decreased carbon dioxide emissions, utilization of waste materials, cost savings, and conservation of land from becoming dump sites. Additionally, the energy consumption for raw material extraction is minimized. This paper provides a comprehensive review of GPC's strength and durability features, mix design procedures, the impact of fibers on mechanical properties, and structural performance. It highlights the development of high-strength GPC using fly ash with sodium hydroxide as an alkaline solution under oven curing conditions. Trial-and-error methods are suggested for developing GPC from various binder materials, with Rangan's mix design procedure utilized for fly ash-based GPC. Furthermore, the incorporation of fibers enhances the ductility of GPC. The paper also discusses recommendations and future research opportunities in the field of GPC.

کلیدواژه ها:

Blast-furnace slag ، Durability ، Fly ash ، Geopolymers