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How do I build a drive?

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Matt_H:
last stupid question for v8kenny, once I have the total area, or volume how do I know how much of the ingredients to buy?  You said a tonne of each, if I'm well over my approximations I'll need more - is there an easy formula to work it out?

Thanks
Matthew

v8kenny:
Hi Matt
112.5 kg of sand covers a square metre so a 1 metric tonne bag of sand will cover about 9 square meters at a depth of 2 inches
It's important not to let the mortar dry before you put the slabs on them so put half the mixer load in a barrow and spread that first with your slabs on top and then use the next half
If you have stamped /rolled the ground first this will be fine without any aggregate
Take your time and start at the top of the slope working down and you will be fine
As for stopping over - if you can wait till about October I might manage it ! :wink:

Edge:
V8kenny, hi....could the sand/cement mix be layed dry :?:  leaving the moisture from the ground/soil to set it off :?:

Matt_H:

--- Quote from: "v8kenny" ---Hi Matt
112.5 kg of sand covers a square metre so a 1 metric tonne bag of sand will cover about 9 square meters at a depth of 2 inches
It's important not to let the mortar dry before you put the slabs on them so put half the mixer load in a barrow and spread that first with your slabs on top and then use the next half
If you have stamped /rolled the ground first this will be fine without any aggregate
Take your time and start at the top of the slope working down and you will be fine
As for stopping over - if you can wait till about October I might manage it ! :wink:
--- End quote ---


so it's a bit like tiling kitchens then in that you only put down the stuff for a small area then put the slabs on top, bit more down and more slabs etc.

when you say 1 tonne of sand does 9 square metres at 2 inch depth, I take it that is 1/2 tonne of each sand mixed, rather than one tonne of each mixed.

Sorry to sound dumb!

Trug, I've seen bags of stuff you don't wet in the diy place, no idea what they are like or how the price compares!

Matthew

v8kenny:
Matt
It's exactly like laying kitchen floor tiles but on a bigger scale ! - I even draw squiggly lines in the mortar with a trowel to give a "combed"  effect like tile adhesive before setting the slabs down
Area quoted is for mixed sand
Trug
Yes you can lay on a dry mix but you get a stronger and far better result using a wet mix - once you have tapped a slab in place the suction caused by the wet mix makes it surprisingly hard to lift off
A wet mix also flows better and is easier to level and to push the slabs into

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