Concrete / ballast calculator

lagi

Anybody know a site for working out how much ballast and cement to order for building a concrete base. Be good as well if you could change the mix ratios. I think i need 5:1. but would be handy for other projects too.

davey4444

Check out http://www.pavingexpert.com/ everything should be there.

lagi

Did check this out but am not using a 3:1 bedding mix and will be using ballast not sand. Unless you can point me straight to the link.

thebaldwindowfitter

unless its tiny id get ready mixed concrete been there done that doing footings on a conservatory back breaking work mixing even with a cement mixer

lagi

I have somebody that could do with the cash and happy to break their back. Also no access with a readymix unless they have one of them long pipes and i know i will be paying a lot for that.

Kiran

lagi wrote: »

I have somebody that could do with the cash and happy to break their back. Also no access with a readymix unless they have one of them long pipes and i know i will be paying a lot for that.

A cocnrete pump? Yeah those have a minimum hire charge attached to them. You seem to know what you are doing with the mix ratios, so I'd just make a quick excell spreadsheet.

Hope this helps

macka0

work out the cubic metre area then multiply it by 1.7 to give you the tonnage......
2m x 3m x .15 =0.9m then x by 1.7 equals 1.53 ton...hope this helps

lagi

Thanks works out about 4.7 tonnes.

Have found this site

http://www.source4me.co.uk/calculate_concrete_mix.htm
and that says about 4.6 using a 1:2:4 ratio. So a thats pretty good formula.

Probably go for 1:6 now.

macka0

mine includes .1 for the mess you make on your driveway

lagi

.....and the splashes up the side of the house.

MX5huggy

...and the barrow load you tip on the daffs