Big bucket of concrete

[fatpies]

A number of suggestions say ground anchor in a massive bucket of concrete. But erm without calling a ready mix company my local one has a min 4m2 order (1 m2 is supposed to be 2300kilos and 4 m2 would probably be too big and heavy) how exactly do you mix concrete without one of those rotating drum thingies?

I'm not a builder and home improvement is unknown to me (I rent)

Sure I can go to B&Q and buy a bag of blur circle, but then what? And is it concrete of is that cement? Concrete? Stuff I need to add to it? And how big is big enough? half a cubic metre? erm 500 odd kilos?

Help me here!
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[The Shaggy D.A.]

https://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=11087501

Ready made, just add water. Lay a sheet of polythene down, empty bag onto it, make a dent in the middle and slowly add water, mix with a spade. When it's like a thick porridge, slop it into the bucket.
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[pepperami]

Go to B&Q`s and buy ready mixed fence-post mix.
It comes in 25kg bags and is ready mixed, so all you have to do is add water and stir it up.

does`nt get much easier than that
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[Andy_Pagin]

[herulach]

You can buy instant concrete you just go over with a watering can, only you'll have to build it up in layers potentially not quite as strong, but should still work.
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[dodgydog]

Wickes "postcrete"
Dig hole, pour in bucket of water, pour in bag of postcrete.
No mixing.
Sets quick too.



Dog
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[Renton]

[DrDonnyBrago]

[Pete.]

[Bendy]

I doesn't have to be all concrete, when I built my water butt anchor I filled it with rubble, bricks, old car batteries, all kinds of shit that was lying around. The concrete was just to bind it all together.

[Cunnington]

Concrete density - designers generally assume 2.4 tonnes per cubic metre - the cube test results I got in last week were 2385 and 2350 kg/m3.

If you want to fill a barrel, you will know the volume. I would recommend postcrete if you dont have anything to mix it with - handmixing any volume is hard work and you would be cheaper buying postcrete rather than hiring a mixer. Allow a bag for every 10 litres and follow the instructions - pour in some water, pour in the bag, quick stir, job done.

I'd put a bag in the bottom, chuck any bricks, stones etc on top, keeping it away from the sides if you can, more water, more bags etc.

If you are casting a chain in, put a bar through one of the links within the concrete to resist pulling it out.
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[Pete.]

You couldn't pull a nail out of cast-in concrete with a crowbar, there'd be no need for a bar through any chain.
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[Walloper]

https://www.simetric.co.uk/si_materials.htm
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[Bendy]

I set a flexible pipe in mine so I could thread a chain through it but be able to remove it if I wanted - like when I moved house and left the butt behind.

[blade023]

Fatpies; I've done a fair bit of concreting myself, and it's easy enough to do without a mixer. You do need to get the proportions right though. The 20Kg bag on the B&Q site linked is far too much, for a medium sized bucket you only need enough to bind your ballast (that's the sand and gravel.) I'd say about 5Kg at most, and you should be able to find such sizes in B&Q. Most cement and 'postcrete' will have instructions and ratios on them, but I'd use about a 1:2:4 ratio, cement:sand:gravel. That should give you a good strong mix. Then just slowly add water until it starts to bind together.

For mixing it, I've done it on a flat concrete floor, or you can use a board if you're good with a shovel (you need to be quick to stop the water running away!) The best way would be a large wide bucket, or better a wheelbarrow.

If you're anywhere near the southwest I'd be willing to do it for you for a couple of beer tokens. YouTube is also a good place to find vids on the technique of it, but stick to those ratios I mentioned
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[McFlufferson]

Last time we did it when the mixer was kanked it was the typical 3:2:1 mix (limestone/sharpsand/cement) in a black wheely bin. If you have something to contain the mix when you pore it you can make it almost as runny as you want for ease of mixing and poring, so you don't need to be too careful about how much water you put in. We usually use 2x4s nailed together. Once it's really dry they'll just pop off.

Sidenotes:

- You can use whatever you want as ballast if you don't plan on putting any real weight on it or expect it to last forever. They used to use rubbish, pebbles and old metal. Not so great for old concrete houses once the shit starts to degrade and the metal rust, but for a pad.. *shrugs*.

- Limestone is the best ballast as it's basically the solid form of cement (cement is the after effect of limestone treated with acid). Once the concrete dries the rest of the mixture binds to it very well. 20mm is what we use for anything that needs to hold real weight - i.e driveways. 10mm is good enough though and does make it much easier to pore. There is no price difference, however.

- If it rains before the concrete is dry but after it's started to set, this will weaken the finished product as it works its way in to the mix and breaks up the bind.

- Postmix is great stuff. For posts. Perhaps not so great for any flat pads. But it seems you really just want a big lump of concrete. So it might work.

P.s one full mix of 3:2:1 will be about £25 for the materials and each mix will weigh approx. 165kg once dry.
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[Cunnington]

[Pete.]

It's all a bit academic when all the OP is looking for is a big heavy lump of 'something'.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Walloper]

[blade023]

[JBurrows88]

What are you using as the ground anchor... Most normal steel bar is quite easy to break through.. It might add 15seconds to an attempt to steal whatever you've locked up.

I saw tests somewhere about how almost all locks can be broken within a minute (but at least its some form of a deterrent)
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[McFlufferson]

[cerysharris]

A concrete pump enables companies to deliver concrete to any location regardless of where the site may be or how accessible it is. Concrete can be delivered to locations away from the road, at a height, below ground and even through another building due to the extendable boom that is fitted to these machines. Because many pumps are able to deliver concrete meters away from the vehicle it means construction companies can be more specific about where they want their concrete delivered.

[Ste]

nobcat.jpg for mod.