How many 85l mixer loads to do 1m3 of concrete

[fishpat86]

After getting some silly qoutes for 1m3 of concrete I have decided to mix my own. I can hire an 85 litre mixer from HSS for £25 a weekend or a bigger one for a bit more. How many loads will it take to do a metre cubed in the cheaper mixer?

[KLS]

A m3 is 1000 litre so in theory it would take 11 mixes if fully loaded. But in reality more like 15 ish I'd say.

[lutonlagerlout]

20 is the number of mixerfuls
any less and it wont be a metre

by the way what is a silly price pat?
we pay around £160 +VAT for 1 metre delivered
well worth it
LLL

[lutonlagerlout]

by the way to make 1m3 you need 250kg cement and 2 bulk bags of ballast
that will cost around £135 for starters
LLL

[Dave_L]

Never worth knocking it up yourself, must be a volumetric wagon locally??

[rxbren]

get it delivered not worth the hassle of mixing it by hand, by the time you have bought the raw materials its only a few pound extra to get it delivered plus saves you half a day mixing and you dont get the problem of the first part setting faster than the last part your filling up so will be easier to get a better and neater finish just dont get it delivered too wet