Concrete is by far the most durrable driveway material i think you may be better off tearing out the concrete and starting over.
Can you put asphalt over concrete.
The truth about asphalt over concrete.
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We poured ours in 93 and it shows almost no signs.
When concrete deteriorates it draws and holds moisture.
Asphalt requires a well prepared stable subbase otherwise the resulting pavement will be subject to instability and cracking.
Putting asphalt over concrete is done for several reasons but does have its drawbacks.
When i m frequently asked can i put asphalt over concrete i always say that the simple answer is yes in fact miles and miles of concrete roads are paved over with asphalt every year and concrete can be an excellent stable base material for asphalt pavement.
Therefore concrete is often used as a bridge over unstable ground.
You lose control over the composition of it and the depth of it.
It doesn t have near the strength of concrete when you measure them inch for inch.
I have a long.
Sub grade material is one of the most important elements of a parking lot that will withstand the test of time.
Can you asphalt over a concrete driveway.
If you get asphalt you will have to re finish it every year or two.
An asphalt overlay is cheaper to install than replacing concrete and can provide a smooth ride over deteriorating concrete.
If asphalt is poured over the top of concrete that has been installed on top of an unstable base the cracking that occurs at the expansion joints of the concrete will not only negatively impact the concrete it will damage the asphalt on top as well.
If you ve been thinking about updating your driveway or parking lot you might be wondering if asphalt can be paved right over the top of the concrete.
Asphalt driveways that are paved over an appropriately compacted subbase will always be superior to asphalt that is laid over an unstable base or concrete that is prone to shifting and expansion.
One positive aspect of installing blacktop over concrete is the concrete provides a firm base for the flexible asphalt paving.
Experts who work each day in the blacktop industry refer to blacktop as flexible pavement.
Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above.
Joined feb 3 2011 89 posts.
Well the answer is yes.
If you lay asphalt over concrete what you sacrifice is control over the sub grade surface.
No but why would you want to.
It is safe to pave asphalt over concrete.
If you go the extra mile and put concrete back down you will have a driveway that will last for a long long time.
It will however require a little more maintenance than a typical asphalt overlay.