Aggregate Base Course (Chat)

Aggregate Base Course Chat

Aggregate Base Course with a "chat" attribute is a finely crushed stone material, typically produced as a byproduct of larger aggregate processing. Chat consists of small, angular particles that create a compactable, stable base layer. Its fine texture distinguishes it from coarser base materials, making it especially effective for applications where a smooth, level surface is required.

The chat attribute enhances compaction and reduces voids, resulting in a dense, solid foundation that resists shifting and settling. This makes it ideal for use under concrete slabs, asphalt pavements, walkways, and patios. In residential projects, chat is often used for driveways and pathways, while in commercial settings, it serves as a reliable sub-base for roads and parking lots. The fine particle size can limit drainage compared to coarser aggregates, but it provides excellent stability and a smooth finish, making it a preferred choice for surfaces that require uniformity and strength.