Concrete mix

knownothing · 23 Sep 2005

I have a lot of builder's sand left over (about 800kg), which I have been using for bricklaying.

Would it be possible to use this in a concrete mix (along with aggregate)for in-filling the two skins of a wall and some hollow brick piers? I think I am supposed to use concreting sand, it's just that I've got loads of the builder's sand left!

Thanks for any help!

Johndug · 23 Sep 2005

Not recomended. It'll have no strength and probably crack.

Thermo · 23 Sep 2005

yes you can if you mix it in with the ballast and a bit of sharp sand. you are only making a lean mix in terms of strength and purpose and it will be fine.

knownothing · 23 Sep 2005

I wanted to do:

1:2:3 cement:builder's sand:20mm gravel

Is this any good?

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Concrete mix

knownothing

Johndug

Thermo

knownothing

DIYnot Local

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