laying concrete floor question
- Thread starter steve76
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two tonnes of ballast (sand and gravel mixed) and 13no. 25kg bags of cement
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you can buy all in ballast which would be easier.
For a floor slab 3m x 3m x 120mm this is what you need
14 bags of 25 kg cement
1.9 tonnes of ballast
or
648 kg of sharp sand
1296 kg of aggregate
14 bags of 25 kg cement
Noseall, We must have posted at the same time mate..
For a floor slab 3m x 3m x 120mm this is what you need
14 bags of 25 kg cement
1.9 tonnes of ballast
or
648 kg of sharp sand
1296 kg of aggregate
14 bags of 25 kg cement
Noseall, We must have posted at the same time mate..
pipped you there tuck.
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the sand (sharp sand) that you would be mixing with the gravel to make concrete is not suitable for rendering, at all.
not on your nellie.
never.
nada.
non.
no.
n.
not on your nellie.
never.
nada.
non.
no.
n.
Sorry to butt in your thread here
Hi noseall
Just seen your comment about using sharp sand for rendering. I've recently used sharp sand for a pond build, its curing at the moment and I'll be applying g4 to it soon.
Is it a problem that I've used sharp sand?
cheers
Hi noseall
Just seen your comment about using sharp sand for rendering. I've recently used sharp sand for a pond build, its curing at the moment and I'll be applying g4 to it soon.
Is it a problem that I've used sharp sand?
cheers
sharp sand can be worked to a degree.
it's just that there is almost zero 'fat' and it does not lend itself well to bricklaying, rendering etc.
it will be fine in a pond and could be worked up the sides if needs be.
it can be worked quite smooth too. after all it is used for floor screeding!
it's just that there is almost zero 'fat' and it does not lend itself well to bricklaying, rendering etc.
it will be fine in a pond and could be worked up the sides if needs be.
it can be worked quite smooth too. after all it is used for floor screeding!
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