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Posted: Thu Jul 05, 2007 2:16 pm
by Tim Hughes
First of all what a great site - I think that I will go into business as a paving expert! my question is this, i've got an old tarmac drive, about 35sq metres, about 17 or 18 years old (was laid when the house was built) starting to look at bit tatty now. Anyway the trouble and strife wants me to bollock pave over it 
If I take off the tarmac layer can I use the existing sub base? If so what thickness of laying course should I use. Note that the existing drive has been well used and has not sunk or broken up.
Many thanks
Posted: Thu Jul 05, 2007 4:22 pm
by Tony McC
You can re-use the sub-base if it's sound. You need a 25-40mm laying course, so you may need to reduce the sub-base to accommodate the blocks at 150mm below dpc
Posted: Wed Jul 25, 2007 9:52 am
by Laju
Tony McC wrote:You can re-use the sub-base if it's sound. You need a 25-40mm laying course, so you may need to reduce the sub-base to accommodate the blocks at 150mm below dpc
Hi,
Great site!
We have a contractor who will be laying new block paving on approx. 85sq meters of driveway. I have read on your site that the existing base i.e. of concrete can be used as sub base, provided we remove the top 150mm to then allow the paving blocks & sharp sand. Do we need to put down black plastic sheet to block out the weeds or is this not necessary? Plus I would like to make a run way with paving blocks would this work?
Thanks!
Laju
???
Posted: Wed Jul 25, 2007 11:59 am
by Tony McC
FAQs on the main site - try reading the one about using membranes and geotextiles.
Posted: Wed Jul 25, 2007 5:56 pm
by lutonlagerlout
Plus I would like to make a run way with paving blocks
i believe luton airport had some problems with block paving in the 80's
apparently, the jets blasted all the kiln dried out of the joints
:;):
LLL
Posted: Thu Jul 26, 2007 10:14 am
by Laju
lutonlagerlout wrote:Plus I would like to make a run way with paving blocks
i believe luton airport had some problems with block paving in the 80's
apparently, the jets blasted all the kiln dried out of the joints
:;):
LLL
Thanks!
Bright spark! I have now changed my design!
Posted: Thu Jul 26, 2007 5:59 pm
by lutonlagerlout
its ok you can use a special sealer to stop the boeings ruining your runway :;):
LLL
Posted: Thu Jul 26, 2007 9:19 pm
by Dave_L
lutonlagerlout wrote:its ok you can use a special sealer to stop the boeings ruining your runway :;):
LLL
Yeah lol they leave some hefty skidmarks on your driveway when they land! :p