Concrete mix - volume question

First thing, the "Jumbo Bags" are normally 900-950 KG, and somewhat short of 1 Cubic Meter. My little blue book has stone chippings at

Assume a 1:2:3 Mix

Then you need 600 KG of Sand and 300 KG of cement. I'd get a jumbo bag of sand at the same time.

Alternativly get a "concrete mix" aka "ballast", and mix at 5/6 to 1 cement. To help mixing, 2 rounded shovels = 1 bucket, 1 buckets = 1 bag of cement. I mix 1/2 a bag of cement at a time in my mixer, you can do a bag at a time but its no quicker in the long run.

Rick

whoops 2 buckes = 1 bag cement

Can't get 50kg bags. Haelth and safety

I was running at about 5 bags to a rough ton of sand for a 5:1 sand cement mix. So my guess is that a cubic metere is ariond 2 tinnes, so ten bags.s mire or less.

But don't panic. Cement firsts in the boot of the car if you run out, and it goes hard after a few weeks in the garage anyway, so buy it a little at a time.

My guess is you will need half a bag of cement per mixer load, 4 shovels of sand and fill it up with gravel...prolly 15-18 shovels.