Concrete paving over asphalt
Concrete paving over asphalt
(OP)
I am working on a project to install industrial shop in an existing storage area. Existing floor in the storage area is 18 inch thick asphalt pavement and the shop needs a concrete pavement. golf carts and forklifts will be operated over the new concrete pavement. I was told to remove 6" of the existing asphalt and fill with concrete pavement. I am concerned if the remaining asphalt is crumble and create problems for the concrete. Any thoughts please.





RE: Concrete paving over asphalt
RE: Concrete paving over asphalt
RE: Concrete paving over asphalt
do you know why it is so thick? This is about 3 times the maximum thickness i would ever had expected without knowing anything about your situation. there just is a point where you're better off switching to a thinner concrete pavement section if this was all by design... and it is less than 18-inches for sure. is there a possibility that multiple overlays have happened because the subgrade was poor and caused paving failures....?
RE: Concrete paving over asphalt
Generally 6 inches of concrete pavement, 4000 psi as OG noted, will handle most light industrial traffic loading. You will need to pay particular attention to the joint and I would make the joint spacing even tighter than OG recommended.....max. 12 feet. You might also consider plate dowels for load transfer at the joints, although you'll have a very good subbase and this would amount to "belt and suspenders". For the concrete mix design, use the largest coarse aggregate you can place. This will cut down shrinkage and reduce the joint widths for the long term.
RE: Concrete paving over asphalt
RE: Concrete paving over asphalt