21AA Crushed Limestone

21AA crushed limestone is one of the most commonly used driveway materials for structural gravel surfaces.  It contains a blend of:

• larger stone
• medium aggregate
• fines

This mixture allows the material to compact tightly and create a durable driving surface. 21AA limestone is commonly used for:

• driveway restoration
• new driveway installation
• parking areas
• private roads
• structural base layers

Advantages:

• compacts extremely well
• creates a firm surface
• widely available
• long-lasting when properly installed
• excellent structural material

Potential drawbacks:

• can produce more dust in dry conditions
• lighter appearance may show tracking easier
• can loosen over time without maintenance