Quantities for concrete oversite

[macadonald]

Hi Guys,

Not quite sure how to calculate these quantities and how water affects the volume of dry mix vs wet mix.

I have an area of app 2.7m x 5.5m that I need to place a thin amount of oversite concrete on. Roughly 14.85 square metres and about 50mm thick of concrete. How much aggregate and cement would I need to order for this?

 

[noseall]

1.5 tonnes of all-in ballast and 10 x 25kg bags of cement.

 

[macadonald]

Thanks noseal. So two bulk bags would be more than enough. Potty I can't get half bags.. Possibly a bunch of small bags for the half.

 

[noseall]

So two bulk bags would be more than enough. Potty I can't get half bags.. Possibly a bunch of small bags for the half.

Mebbe lay it a bit thicker....