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#149850 - 08/28/16 11:19 PM Pouring concrete over asphalt
arrowhead Offline
Junior Member

Registered: 08/28/16
Posts: 1
I know that when you pour concrete over existing concrete you need to put a thin layer of sand between the slabs. Does the same hold true for pouring over asphalt? Has any one of you guys ever done this and how is it holding up?

#159061 - 03/17/17 09:52 AM Re: Pouring concrete over asphalt [Re: arrowhead]
greg Offline

Registered: 04/19/01
Posts: 118
Loc: New Castle, Pennsylvania
I would recommend not to pour over asphalt. Sand will not bond them. There may be an epoxy.... With the very different expansion and porous features of each product. I see a very bad ending. Concrete cracking and heaving before it's time. Even paving asphalt over concrete does not last long enough...