Flags can be laid on 20 25mm of cement bound material the 10 1 bedding mix described on the mortars and concretes page is ideal for this task.
Can i lay block paving over concrete.
I say go for it if these 3 things work.
Well the answer is yes.
In fact many consider learning how to lay block paving part of the quest to create their dream home and landscape.
You could just dig up the.
Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above.
A semi dry or moist mix is easiest to work although a wet mix can be used if preferred.
Laying pavers over this material may pose problems to the drainage as concrete slabs have the inability to drain water through the blocks and into the earth.
The height of the pavers over concrete isn t too much.
The process is nearly identical to laying a paver patio over ground.
If you have freeze thaw cycles water would get in between the pavers and concrete and probably ruin the concrete base.
You are in a warm climate.
Then if you are laying block paviors or council type square 450 x 450 slabs then use sharp sand screed and lay them onto the screeded base.
Yes with proper planning and the right tools you can lay block paving by yourself.
It is safe to pave asphalt over concrete.
The worst that happens is you have to tear out the concrete later rather than sooner.
According to several paver manufacturers paving blocks can be installed on top of concrete without mortar if you first lay down a 1 2 to 1 bed of coarse sand.
In fact many miles of concrete roads are paved over with asphalt every year.
Proper drainage of the site.
Make sure your concrete foundation is properly sloped and doesn t accumulate surface water.
If it is and you lay block paving on top of your current driveway where it meets the street there will be a slight bump depending on how thick the block you re using.