All forms of block paving, brick paving, flexible or rigid, concrete or clays, new construction or renovation
Woppy69
Posts: 2 Joined: Tue Aug 19, 2014 7:51 pm
Location: Uk
Post: # 100569Post
Woppy69 Tue Aug 19, 2014 7:57 pm
Hi all, I have broken up a old concrete drive and removed the concrete. What depth should I excavate to underneath?The ground is hard and has rubble underneath and road plannings. Seems very solid.
Best wishes
David
Djwaspe
seanandruby
Site Admin
Posts: 4713 Joined: Mon Jun 26, 2006 11:01 am
Location: eastbourne
Post: # 100572Post
seanandruby Tue Aug 19, 2014 9:24 pm
Are the planings coated in bitumen, or clean, are they a uniform size say 40ml? Could be you might get away with leaving them in if they are clean.
sean
Woppy69
Posts: 2 Joined: Tue Aug 19, 2014 7:51 pm
Location: Uk
Post: # 100574Post
Woppy69 Tue Aug 19, 2014 9:39 pm
Clean road plannings all about the same size, not very deep though but firm. Could u run the wacker plate over it to help?
Djwaspe
seanandruby
Site Admin
Posts: 4713 Joined: Mon Jun 26, 2006 11:01 am
Location: eastbourne
Post: # 100582Post
seanandruby Wed Aug 20, 2014 7:27 am
If it's been down a while with a concrete slab on top it should bé as compact as it will ever bé. But if you have a wacker it won't hurt to give it a thumping. Clean planings is good to go then.
As long as you have 100 to 150 sub base down, DTP1 or as good as.
sean