laying a concrete floor

[deeen]

mk1fan said:

You buy it.

I don't think it will work over wooden expansion joints though, sorry if i missed that part of the original post.

Has OP closed the sunroof on his Fiesta yet?

[jas xjr]

anonymous said:

[redacted]

this

[andy43]

Ebay cheap flags is the answer - concrete is silly expensive, even if you mix it yourself.

[deeps]

Two inches is a bit skinny, it'll crack ................. oooops sorry only joking!

The movement joints are a good idea but only necessary if the base is huge, or for ease of laying if you're not doing the whole thing in one go. If you're using sand in the mix it should be easy enough to tamp up some fat even on a fairly dry mix, which is best for strength. I would be mixing it quite dry, laying it, screeding it off flat, then giving it a good tamping to bring some fat to the surface - the more you tamp it the more the fat will rise and spread between the stones/gravel on the surface. If you want a nice finish on the edges you could run an edging trowel over them, which is like a flat trowel but with a curve on the edge to give a nice rounded finish to exposed edges.

[dickymint]

I bet it cracked

[thinfourth2]

andy43 said:

Ebay cheap flags is the answer - concrete is silly expensive, even if you mix it yourself.

Free cement and concrete mix at £20 a ton

Not too costly

So far a base 5m x 3m has cost me £80

[andy43]

Well I had a cube of C35 concrete delivered this morning - £105. £20/tonne is a bargain.

[thinfourth2]

Concrete mix is gravel and sand mixed in the correctish ratio

You add cement and mix and bingo you have concrete

Sadly my mixer is a bit ill

Which leads to my next thread