Old tarmac drive - Block pave over old sub-base

All forms of block paving, brick paving, flexible or rigid, concrete or clays, new construction or renovation
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Tim Hughes
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Joined: Thu Jul 05, 2007 10:43 am
Location: Stockport

Post: # 20474Post 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 :D

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
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Tony McC
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Post: # 20477Post 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
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Laju
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Joined: Wed Jul 25, 2007 9:36 am
Location: slough

Post: # 21017Post 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
???
Laju
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Tony McC
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Post: # 21021Post Tony McC

FAQs on the main site - try reading the one about using membranes and geotextiles.
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lutonlagerlout
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Location: bedfordshire

Post: # 21029Post 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
"what,you want paying today??"

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Laju
Posts: 2
Joined: Wed Jul 25, 2007 9:36 am
Location: slough

Post: # 21051Post 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!



:cool:
Laju
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lutonlagerlout
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Location: bedfordshire

Post: # 21062Post lutonlagerlout

its ok you can use a special sealer to stop the boeings ruining your runway :;):
LLL
"what,you want paying today??"

YOUR TEXT GOES HERE
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Dave_L
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Post: # 21085Post 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
RW Gale Ltd - Civils & Surfacing Contractors based in Somerset

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