Can you concrete over asphalt?

To save time and money, many states and municipalities use a road repair technique known as whitetopping, the process of pouring concrete over asphalt rather than removing the existing asphalt. Homeowners can benefit from this whitetopping technique to reduce labor costs and time when replacing worn asphalt driveways.Click to see full answer. Thereof, can concrete be laid over asphalt?Well, the answer is yes! It is safe to pave asphalt over concrete. Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above. In fact, many miles of concrete roads are paved over with asphalt every year.Subsequently, question is, can you pour new concrete over old cracked concrete? However, if your concrete is relatively sound and raising its elevation a few inches would not create problems, then you can pour new concrete directly over the old. If you bond new concrete to old, any cracks in the existing slab will transfer up into the new slab, and usually within a day or two. Keeping this in consideration, 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.Why do they put asphalt under concrete?Placing a thick mat of asphalt under a concrete layer does the same thing — it allows water to drain down into the sub-base. It also stabilizes the base under the concrete and doesn’t subside as does a gravel base sometimes. It’s also sometimes used with a poly film or blanket.
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