Newbie!!! concrete mix
 

It's probably been asked a 100 times already, but what mix should I made of
agg/sand/cement for footings?
I'm building a conservatory with approx. 18 inch footings for the walls. got
some 13m to do, and need to work out quantities (let alone costs!).
before anyone shouts, yes I do realise it's special (srpc) cement I require.
thanks.
Peter.

"Peter Dawson" wrote in message
...
It's probably been asked a 100 times already, but what mix should I made
of
agg/sand/cement for footings?
I'm building a conservatory with approx. 18 inch footings for the walls.
got
some 13m to do, and need to work out quantities (let alone costs!).
before anyone shouts, yes I do realise it's special (srpc) cement I
require.
thanks.
Peter.

http://www.pavingexpert.com/mortars.htm#mixos

There's an on-line calculator there too.

Peter Dawson wrote:
It's probably been asked a 100 times already, but what mix should I made of
agg/sand/cement for footings?
I'm building a conservatory with approx. 18 inch footings for the walls. got
some 13m to do, and need to work out quantities (let alone costs!).
before anyone shouts, yes I do realise it's special (srpc) cement I require.
thanks.


So that's about 3 cubic metres. You really want to mix that by hand? I
wouldn't - readymix is far easier.


--
Grunff

I've got hold of a petrol cement mixer and four willing victims :-))
thanks for your help. P.

So that's about 3 cubic metres. You really want to mix that by hand? I
wouldn't - readymix is far easier.

And if access is no good for readymix, I built mine on a metal base, which
just requires a few small pad foundations, in my case made from dense
concrete blocks.

Definitely the most expensive option, so consider it only if readymix is not
practical, or there is a large level change that you don't want to fill with
concrete/hardcore or use wooden joists over.

Christian.