If slag is used as coarse aggregate for Item 311, what is the minimum density required?

The minimum density required for slag used as coarse aggregate in Item 311 is 1,120 kg/m³. This density standard is based on guidelines for ensuring that the materials used in construction meet structural performance and durability requirements. Slag, being a byproduct of metal production, has distinct physical properties that can affect its performance as an aggregate.

Adhering to the specified density of 1,120 kg/m³ ensures that the aggregate provides adequate strength and stability when incorporated into concrete or other construction material. It also helps to prevent issues such as shrinkage, cracking, and other long-term durability problems that may arise if the aggregate is too light or not dense enough. Using slag with a density lower than this minimum would compromise the overall quality and performance of the final product.