Blast furnace slag (BFS) is a by-product from the manufacture of iron, and it has been widely utilized in cement and concrete production due to its cementitious properties. When iron ore is reduced in a blast furnace, slag is produced as a waste product. BFS can be granulated (forming granulated blast furnace slag or GGBFS) or air-cooled, with each form having different uses and benefits in the construction industry. The incorporation of BFS in cement and concrete not only helps in reducing the carbon footprint of these materials by replacing Portland cement but also improves various properties of the concrete. This includes increased durability, higher strength, and better resistance to chemical attacks, making it particularly valuable in harsh environmental conditions such as exposure to sulfates and chlorides commonly found in coastal areas and industrial settings.