New concrete floor

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Spana

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New concrete floor
« on: February 21, 2010, 22:15 »
How long should we leave a new concrete floor to dry before laying slate slabs.
Anyone have any thoughts. Its inside.
Thanks

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Lardman

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Re: New concrete floor
« Reply #1 on: February 21, 2010, 22:49 »
Depends on such a lot ....

How deep and what mix ? 4-5 Weeks wouldn't be unreasonable.
I'm the person the monsters under your bed are hiding from.


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Spana

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Re: New concrete floor
« Reply #2 on: February 21, 2010, 22:54 »


 4-5 Weeks wouldn't be unreasonable.

OMG, thats what OH said and I thought he was making it up just to get out of doing it :wub:

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new_2_veg

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Re: New concrete floor
« Reply #3 on: February 21, 2010, 22:54 »
when you say new floor,

has it just been topped (sharp sand) or is it a solid slab?

if its been topped can tile anywhere from a week.

i used to be a tiler (and still do bits) but never done much with real stone but

use a powdered adhesive, dont have it to wet and only mix a small ammount at one time, they take some laying compared to ceramic porcelane etc.

also use a solid bed trowel or a high build (my high build has a 20mm wide x 10mm high rounded notch)

thanks

nathan
2 allotments, long standing back problem, am i mad?

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davethespread

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Re: New concrete floor
« Reply #4 on: February 24, 2010, 10:07 »
im a plasterer and if the floor space has been screeded with a sand and cement screed it takes 28 days for the floor screed to cure.
i dont suffer with insanity..........i enjoy every minute of it.

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Trillium

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Re: New concrete floor
« Reply #5 on: February 24, 2010, 15:51 »
I go along with Dave. When we had our new basement floor poured, we couldn't even put boxes down there for 3 weeks or they'd leave permanent impressions.

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new_2_veg

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Re: New concrete floor
« Reply #6 on: February 24, 2010, 16:30 »
there is a adhesive made my bal for green floors so to a point that statement is wrong.

i was trained by a bal rep, along with the 5 staff i had.

like i said tiling can be done from a week,  leaving it longer will allow you to use a cheaper adhesive.

have a look here

http://www.bal-adhesives.co.uk/technical/faq


as you will see, they say with green screed adhesive you can tile from 24 hours of the floor being laid.


nathan

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davethespread

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Re: New concrete floor
« Reply #7 on: February 26, 2010, 15:06 »
nathan what happens to the water that gets trapped in between the tiles and membrane in the oversite? :unsure:

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Spana

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Re: New concrete floor
« Reply #8 on: February 26, 2010, 15:25 »
nathan what happens to the water that gets trapped in between the tiles and membrane in the oversite? :unsure:
We did wonder about that too.  The Bal stuff is probably excellent but OH is a bit set in his ways and as he can get on with rendering the out- side  we are going to let it dry the old fashioned way.   :lol: He only did the screed yesterday  so the house is full of condensation.
The slate is ordered for next week so I can get on with putting a coat of sealer on that while we're waiting for the floor to dry.

As long as i can see progress i dont fret too much.   :)

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new_2_veg

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Re: New concrete floor
« Reply #9 on: February 26, 2010, 16:57 »
nathan what happens to the water that gets trapped in between the tiles and membrane in the oversite? :unsure:


its a polymer adhesive,  a despersant so the reaction causes the drying rather than the air.

plaster is the opposite and requires the air as you know

nathan



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