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Groundwork & Foundations

How many big bag of ballast do you need to make one meter of concrete

it for a covseavatories base 5 meter by 3 meter,at 100 cm

5 Answers from MyBuilder Groundworkers

Best Answer

the conversion rate is as follows 1.76 tonnes per cubic metre. hope this helps you out. Darren


Answered 16th May 2011

3 bags of ballast for the size and depth your quoting


Answered 16th May 2011

2.5 tons,maybe get it deliverd on small lorry,hard to shovel out of 1 ton bags.


Answered 17th May 2011

the answer is 2.7 tonnes of ballast (order 3no. 1 tonne bags) 675kgs of cement (5:1 mix) is 27no. 25kg bags of cement.


Answered 25th May 2011

you will require 2.5 tons of ballast to concrete your area of 5metres x 3 meters at 100mm thick so that will be 3 one ton bags.
regards darren


Answered 16th May 2011

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