Asphalt Millings are ground-up, recycled asphalt removed from road repaving projects. When roads are repaved, it is often necessary to remove the top 2-3" of existing roadway to make room for the new ashpalt pavement. This removed material then gets crushed and sifted to become "Asphalt Millings." Using millings for your project is a great way to help recycle and lessen environmental waste.
With compacting over time, Asphalt Millings can and will harden and "pack together" somewhat. Will they be as solid as a Hot-Rolled Asphalt driveway? Absolutely not - but it is also about 15-20% of the price of a new Hot Asphalt Driveway. Millings are a "Cold Pack" product - they are used when cold, then compacted from vehicle usage or with a plate compactor. Due to expense, we do not provide Roller Compaction, but they can be rolled with a large Vibratory Roller for excellent results.
Typically Asphalt Millings are only used on driveways. Due to their asphalt/tar-like appearance, they are not often used in patio or walkway applications.
Although Asphalt Millings pack very well and solid, they are NOT a structural material - meaning they must be applied on top of a solid sub-base surface.
Asphalt Mllings are strictly a "Top Coat."
The strength of the Asphalt Milling surface is ONLY as good as the substrate itself. (The surface it is applied on)
What that means is when using Asphalt Millings, they must optimally be applied to an already-compacted base such as an existing driveway. If you are looking to expand your driveway or parking area using millings, its not as simple as throwing down some millings on your dirt.
For optimal results, the surface must be properly prepared as follows :