Recycled Materials — Crushed Concrete & Asphalt Millings

Yes — for the same application. Crushed concrete road base compacts and performs comparably to virgin limerock base. It's also cheaper and more sustainable.

Partially. Asphalt millings bind together over time under traffic and warm weather, creating a semi-firm surface. They won't reach the hardness of new hot-mix asphalt but are popular for residential driveways and rural roads.

Use #57 crushed concrete for general drainage. It allows water through and is less expensive than virgin stone. For pipe-surround in critical drains, virgin #57 stone is preferred to avoid fine particles.

Paver base is finer (3/8" minus) and screeds flat under pavers and flagstone. Road base is coarser (1½" minus) and used as the structural compacted layer for driveways and roads.