What percentage of concrete is typically made up of aggregates?

Concrete is primarily composed of aggregates, which include both coarse aggregates like gravel and crushed stone, and fine aggregates such as sand. Typically, the aggregate content in concrete mixtures is significant, usually ranging from 60% to 80% of the total volume.

This high percentage is crucial because aggregates not only provide strength and bulk to the concrete but also influence other properties like workability, durability, and thermal conductivity. In the mix design, aggregates help determine the overall characteristics of the concrete, including its compressive strength and resistance to environmental factors.

The range of 60-80% reflects standard practices in civil engineering and construction, aligning with common specifications for concrete used in various applications, such as structural elements, pavements, and foundations. This understanding of aggregate content is foundational for anyone working with concrete materials, ensuring the proper balance and performance of the final product.