Bricklaying Question

Hi,what is the calculation of estimating concrete for footings and conrete slab in cubic metre and then into tonne bags of ballast and cement?

7 Answers

Best Answer

Google concrete esimating, there are loads of online calculators, just input all the dimensions.

Answered 25th Jan 2012


Member since 29 Oct 2008

Hi Steve have calculators that will work it all out for you

Hope this helps

Steve Hickman

Answered 25th Jan 2012

s&d building and maintenance

Member since 11 Apr 2009

hi,go on google and put in concrete calcalator and that will help you.thanks nick

Answered 25th Jan 2012

kentish builder

Member since 14 Jul 2009

Hi, a 1t bag (or bulk bag) works out to be 0.6 cubic meters in total.
10 bags = 6cumtrs.

Answered 26th Jan 2012

Local patios and driveways

Member since 24 Jan 2012

1m3 of concrete weighs approx 2.2 tonnes
about 1.5 tonne bags ballast, 6 bags dust water (2 buckets / mix) about 1m3 concrete
adjust cement for strength of concrete

Answered 26th Jan 2012


Member since 21 Nov 2011

Past experience , due to cost of bagged ballast ( even tonne bags ) ready mixed is way cheaper not even taking to account labour in mixing .
Why are you wanting to mix it ? Access ?

Answered 25th Jan 2012

Apex lofts

Member since 25 Jan 2012

Hi the calc to work out the footings is length x width x depth as for the slab work out the area then x by the depth you want.

Answered 25th Jan 2012

Jonathan Dixon Builders

Member since 2 Jul 2008

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