Millings have a different density than hot mix. Calculate the correct tonnage and account for compaction shrinkage.
Millings typically cost $15-$25 per ton, while new Hot Mix Asphalt costs $85-$150 per ton.
Asphalt millings (also known as Recycled Asphalt Pavement or RAP) are created when a milling machine grinds up the surface layer of an old road or parking lot. The resulting material looks like dark gravel.
The biggest mistake people make with millings is failing to account for compaction. Loose millings contain a lot of air. When you run a heavy vibratory roller over them, they will compress by about 20%. If you want a final depth of 4 inches, you need to spread the loose material roughly 5 inches deep. This calculator automatically accounts for this by increasing your required tonnage.