What can you put on top of asphalt?
Replace Asphalt Blacktop with Concrete Gravel Over Asphalt
- Can asphalt drive be covered with crushed rock.
- Make sure there are 4-6 inches of angular stone.
- A thin layer of stone will eventually expose asphalt.
- The new stone will not interlock with the asphalt.
Then, what can you put over asphalt?
You can install concrete driveway pavers over existing asphalt, although it is not recommended. Asphalt is more subject to freeze/thaw damage, heaving and cracking with extremes of temperature. It is therefore less stable than some other paver bases and may cause the concrete pavers to shift and crack.
Furthermore, why do they put gravel on top of asphalt? The tar-like substance is actually an emulsion of water and liquid asphalt which penetrates and seals small cracks in the existing pavement. The “gravel” is actually aggregate that sticks to the emulsion and, after rolling and sweeping, provides a skid-resistant surface to improve safety.
Correspondingly, can you put asphalt on top of asphalt?
Asphalt Resurface (over Asphalt): A #404 surface course of asphalt can be installed on top of existing asphalt. Putting new asphalt on top of existing problems won't make them go away. The time to correct them is before you install the new asphalt.
How thick should an asphalt overlay be?
1.5 inches thick