DIYbanter - cement sand and water ratio

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April 20th 06 06:30 PM

cement sand and water ratio

whats the ratio for a cement mixture thats going under tiles? theres
sand under the tiles now.
thanx
~B

Mr Fixit

April 20th 06 06:55 PM

cement sand and water ratio

what sort of tiles floor patio wall ?
wrote in message
oups.com...
whats the ratio for a cement mixture thats going under tiles? theres
sand under the tiles now.
thanx
~B

Phil L

April 20th 06 10:04 PM

cement sand and water ratio

wrote:
whats the ratio for a cement mixture thats going under tiles? theres
sand under the tiles now.
thanx
~B

Sand? - how do they stick to the wall?

:-p

I think you mean paving slabs / flags?
If you do mean paving, then it's not too important how strong or weak the
mix is, only that the surface that you are putting the mix on is sound and
well compacted.
If there is sand underneath them now and they have settled, your best idea
(once you've taken them all up of course!) would be to sprinkle a few
spadefulls of cement over an area of about 3 sq metres and rake it into the
sand, (this will set into a firm base after a few days) and then lay your
'blobs' of mix on this base and lay the paving as normal, you can tramp down
the dry sand/cement bed first to make it flatter for working on, or if you
are good at laying paving, don't use blobs but just lay them on the unfirmed
bed, but be warned - you won't get them down any further than 5mm, with
blobs (fairly dry) you have an inch to play with.
The mix that you make for the blobs can be as weak as 10 to 1 or as strong
as 1 to 1 but it makes no difference whatsoever, it's not actually doing
anything apart from acting as a spacer, unless you intend driving over them
and then it's a totally different kettle of fishes.

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