Slag cement, or ground granulated blast-furnace slag (GGBFS), is a recovered by-product of the iron manufacturing process and can be used to replace a portion of portland cement in concrete mix design. 

The use of slag cement has demonstrated long-term performance enhancements allowing designers to reduce the environmental footprint of concrete while ensuring improved performance and increased durability.

Benefits of Slag Cement

• Improved workability, placement and finishing.
• Higher long-term compressive and flexural strengths.
• Reduced permeability.
• Improved durability and resilience.
• Lighter color.
• The use of slag cement in concrete can aid in achieving LEED points.