Originally Posted by [_2_]

On Jun 5, 2:51*pm, "CS" wrote:
I am planning on redoing my whole front yard, new grass, new walkway, and
new driveway. *I want to get rid of the fugly concrete driveway and walkway,
replacing it with shaped paving stones, like the kind that interlock.

I'm going to tear out the existing walkway and place a new one one a
different path.

For the driveway, I want paving stones, but if I can save myself a whole lot
of work, I will.

I'd like to place the stones over the driveway, cutting out only a little of
the concrete where it meets the sidewalk so it will slope down. *I also want
to raise everything a couple inches, which will make some of the other
projects I have planned a little easier.

Is there a problem with this? *I was thinking of cementing or otherwise
attaching the paving stones to the slab. *It's about 8' wide and 30' long.

Thanks!

CS

Paving stones are usually just set down on a sand base and then either
sand of stone dust is brushed over. Beneath the sand layer you need
a stabilized base. That could be just the existing ground material,
if
it's just gravel and firm enough. If it's soft soil, then it needs to
be removed
down far enough to get to firm material, then suitable material added
and compacted, prior to putting the sand down.

If the concrete you have is stable, then it could be OK from a support
standpoint as the base and you could go with the sand on top.
However, the concern
I would have is drainage. If the concrete is slab is intact, water
won't
be able to drain out effectively and it could be a problem with freeze/
thaw
cycles.