Working out an area to concrete

[Gulli]

Your right but would be close enough for a guesstimate.

Fairly, yes but too many variables in this. We need to know some angles. Is there a right angle in one corner to start.

I reckon your method is flawed but then it's your job, I've never done concrete ordering.

Top left should be near enough, none of the others are though

 

[Philip Watkins]

Top left should be near enough, none of the others are though

Go with this answer then

I'd be interested to see who's closest
View attachment 282752

I'm on 2 full loads. £££££

edit - my first line wrong should be 9.7 x 7.1.....shortest x shortest

so back to 13.2 for my answer, works out the same as multiplying the average of the 2 opposite sides like the pro's do it.

'there must be an app for it ' as my builder says.

edit again - https://play.google.com/store/apps/details?id=com.chaneyconcreteandagg.calc&hl=en

13.2 will be close.

 

[bobk]

I did it like this, dunno whether its right but i'm not usually far out, he says, be 30 cube out next week now

View attachment 282818

I'd go with that , average the sides to square it.

 

[Unbrako precast]

13.12 is the most it could ever be , obviously relying on the depth actually being 150mm and the concrete company delivering what they say . Aggregate weights vary , particularly wet sand and concrete is batched by weight rather than volume so even with good intentions firms can be out slightly.

 

[Gulli]

It's actually on a stupidly awkward slope bottom right corner is probably a metre lower than the top left, not looking forward to laying it but at least when it's done I won't have to do it again

 

[Unbrako precast]

It would be a nice job for a volumetric as you can dry it up to suit the slope and stop it when you want , they also have a large radius on their delivery auger for placing it .

 

[Gulli]

It would be a nice job for a volumetric as you can dry it up to suit the slope and stop it when you want , they also have a large radius on their delivery auger for placing it .

I'll look into it, bit awkward getting in there, plan was to drop it in a loadall bucket and drive it round.
You'll be getting a call soon for some panels seeing as the last ones havent fallen to bits

 

[Unbrako precast]

Ha , thank you !

 

[Unbrako precast]

Excuse one obvious tip , tamp it once very gently and leave it alone so it doesn't all end up at the bottom.

 

[Pan mixer]

The elephant in the room here though is 'How thick will it actually be?

another 20mm average over the whole lot will hardly notice unless the sub base is already good concrete.

Buy a Pan Mixer.

 

[RWG Contracts]

Just dig it 11.7 metres square, order 18+ and stop being tight

 

[Philip Watkins]

Just dig it 11.7 metres square, order 18+ and stop being tight

Maybe because of the constrains of existing objects/infastructure that isn't possible.

 

[RWG Contracts]

Maybe because of the constrains of existing objects/infastructure that isn't possible.

Needs a bigger digger then

 

[Gulli]

Just dig it 11.7 metres square, order 18+ and stop being tight

It's between two sheds and a bit of concrete. could do with about 30/40 really but it's good to do things a little bit at a time.
Or something...

 

[Philip Watkins]

@RWG Contracts see, I told you.

 

[RWG Contracts]

@RWG Contracts see, I told you.

Sorry Philip

 

[Philip Watkins]

Sorry Philip

It's alright , I was only guessing. Why else would you have an odd shape like that if there wasn't something in the way?

 

[RWG Contracts]

It's alright , I was only guessing. Why else would you have an odd shape like that if there wasn't something in the way?

Yeah I was only been daft. Although I've done jobs where the whole yard is knackered and they just replace the really knackered bit in the middle

 

[Philip Watkins]

Yeah I was only been daft. Although I've done jobs where the whole yard is knackered and they just replace the really knackered bit in the middle

Then next year replace the bit they didn't do this year?

 

[RWG Contracts]

Then next year replace the bit they didn't do this year?

Bingo you got it