What is the minimum density requirement for fine aggregate used in concrete?

The minimum density requirement for fine aggregate used in concrete is an important specification to ensure the strength and durability of the resulting material. Fine aggregates, typically sand, contribute to the concrete mix's overall density, workability, and strength.

A minimum density of 1,200 kg/m³ is generally recognized as the standard threshold for fine aggregates to ensure that they provide adequate structural integrity in concrete applications. This density helps achieve desired properties in the final concrete mix, such as compressive strength and resistance to environmental effects. Lower density aggregates may compromise strength, leading to potential failures in structural applications.

Considering these requirements and the established standards within construction and civil engineering, option 1,200 kg/m³ is established as the correct minimum density for fine aggregates to be effectively utilized in concrete.