Commercial paving specifications - Any ideas

[London Stone Paving]

We have been spec'd to do a commercial paving project in East London. One of my sales team showed me the drawings today and the architects had allowed for:

50mm thick paving

40mm bedding layer

100mm type 1

This sounds a bit light for a commercial paving job. Does anyone know what the right spec is for commercial grade installations?

[rab1]

try marshalls web site?.

[London Stone Paving]

You making me work for it rab ?

Just had a look on there and was instantly scared off by just a mass of information

[London Stone Paving]

Just to clarify i'm looking for the spec for the bedding layer and the MOT layer, not the paving material

[Dave_L]

Pedestrian only area?

[London Stone Paving]

yeh Dave, its for a pavement

[lutonlagerlout]

chris AKA ilovesettsonmondays has done extensive pavement work in the west end of london so he would be the man to tell you

on the disabled ramps, we have to have minimum 100mm of type 1 compacted and 50mm of 4:1 grit sand/cement

but we often use lean mix instead of type 1 as there can be 400mm of fill

chris will know definitively
LLL

[ilovesettsonmondays]

different specs for different councils . in highly pedestrianised areas i.e town centres ,west end etc, 150mm of kerb mix , then 50mm of sand and cement through mixer 4:1 or even bought in screed with 3 day retarder .63mm slabs minimum . i have only ever used 50mm slabs on a pavement once and that was on a quiet surbuban(is that spelt right???) street in dagenham.some councils use 150 mm of type 1 as sub base to save on cost.

[Pablo]

That spec barely cuts the mustard for a private patio let alone public paving. 50mm natural stone will be perfect but the subbase is way to thin. Every natural stone projest over here is laid on a concrete sub base with a 50mm screed bedding layer because it's only a matter of time before a vehicle is driven on it or a large cherry picker etc if that happens with that spec it's finished. If it were me I'd recoomend a 150mm concrete subbase but if you're supply only then all you can do is make your reservations known and bank the cheque.

[ilovesettsonmondays]

50mm slabs are not good enough for a pavement . seen 50mm york laid before . looks like crazy paving in a few months after cars mounting the kerb .

[Pablo]

Yorkstone is softer than cheese so yes it should be thicker all the granite Caithness and Kilkenny limestone stone slabs I've laid have been 50mm and never seen a break in it.

[Bec@LondonStone]

Hi guys, I'm on the sales team working on this project at the moment. Thanks for all your replies, they're really helpful. The paving is Granite so I think the 50mm will be fine. Pablo, I think you're right - all I can do is let them know our concerns and let them take it back to the architect.

[lutonlagerlout]

welcome to the brew cabin beccy
LLL

[haggistini]

Hi beccy and welcome to the brew cabin. I have worked on commercial spec streetworks and it has been anything from 300mm concrete 100mm sceed 150mm granite slabs. It all comes down to the architect and the math! Paving layed right will take most traffic. Just like the roman road over the Beacon's mountain by me it's only 2000 yrs old it's a nice walk and a decent pub at the end of it if you fancy it?

[pickwell paving]

Steve, Beccy, have you had a look on interpaves website ? A fairly generous amount of information on there regarding specs etc, just have to register e mail address to access it.interpave