Dense-graded base course consists of aggregates containing a balanced range of particle sizes, generally 1-1/2 inches and below, which compact together to form a strong, stable layer with reduced voids. It is commonly used as a foundation material in pavement construction and various infrastructure projects.

Common Applications
• Base layer for asphalt pavements
• Foundation support for concrete slabs and pavements
• Unsealed roads and road shoulders
• Backfilling around pipes and underground services
• Cement-stabilised base construction

Sizes and Specifications
Aggregate sizes and classifications may differ depending on local regulations, project requirements and applicable standards. Common terms include, but are not limited to: Base, Subbase and Dense-Graded Base.