GGBS is a by-product generated during the manufacturing of iron in blast furnaces and is typically used as a supplementary cementitious material in construction. It possesses cementitious properties, contributing to concrete's strength and durability. When used in concrete production, it reacts with calcium hydroxide and other compounds to form additional cementitious compounds, enhancing the strength and reducing permeability.

Benefits:
• Strength: It improves long-term strength and durability of concrete, making it less susceptible to cracking and improving its lifespan.
• Sustainability: As a by-product of the iron-making process, using GGBS reduces the need for extracting raw materials for cement, making it an environmentally friendly option.
• Workability: It can improve the workability of concrete mixes, making them easier to handle and place.

Applications:
GGBS is commonly used as a partial replacement for Portland cement in concrete production. It's particularly beneficial in large infrastructure projects, where durability and long-term strength are essential.