Concrete for shed floor

[neilo]

Re-sited shed is going up at the new place this next couple of weeks, the floor having been dug into shale rock. I had intended to leave the floor as bare rock, as it wont ever be grain storage again, but starting to wonder again now, as it would stop the possible water ingress at the same time.

If we were to concrete the floor (while the erecting guys are still on site), what concrete spec should I be using? I was thinking 6" thick (with fibres), which will amount to around 110 cube, but what spec? For that matter, what specs are there? I've heard of RC40, but that's about all.

 

[Kevtherev]

Minimum needs to be 150mm and small fibres are around £8m with C35 mix at £142 which I’m using at moment for pads.
You might get away without fibres on that rock as long as it’s rolled plenty beforehand.

 

[Tubbylew]

Helluva lot easier to concrete a shed before it's filled up with all and sundry, never be a cheaper time to do it imo.

 

[neilo]

Helluva lot easier to concrete a shed before it's filled up with all and sundry, never be a cheaper time to do it imo.

That's what I'm thinking of course, but £££'s now.
Not that it's likely to get cheaper in the future I guess.

 

[upnortheast]

Link here to a site giving basic info on various concrete mixes

C20, C25, C30, C35 & C40 Concrete| Concrete Types | Empire Ready Mix

Check out our most popular concrete mixes here, including typical grades from C10 to C40. Specialised & specific mixes available too. Get in touch today!

www.empirereadymix.co.uk

Other specialist mixes are available. Relevant to outside farm yards would be PAV mixes which contain air entrainers which protect the concrete from frost spall

 

[Tubbylew]

That's what I'm thinking of course, but £££'s now.
Not that it's likely to get cheaper in the future I guess.

Depends on circumstances I suppose, am just on repairing a rotten pole barn that grandfather put up in the '60s, bit frightened of costs getting out of control, never seems to be the right time to take on a building project until it's finished, but if it isn't done it'll be more expensive next year. Just hold on for the ride I guess.

 

[Hilly]

C35 with fibres.

 

[neilo]

Depends on circumstances I suppose, am just on repairing a rotten pole barn that grandfather put up in the '60s, bit frightened of costs getting out of control, never seems to be the right time to take on a building project until it's finished, but if it isn't done it'll be more expensive next year. Just hold on for the ride I guess.

True, but I have several such rides on at the moment. Another gang at the same site is currently building a conservatory extension for us, before we start on sorting internals… Eventually, I’ll get to sorting the farmland out.

 

[Skintagain]

C35 with fibres.

I don’t bother with fibres tbh



DPM with taped joints so water stays in and wet it very day for 10 days so it cures properly that strength is cheap for half an hour with hosepipe

150mm thick on good base

Sheets of mesh in doorways where it gets pain

 

[neilo]

C35 with fibres.

That’s what I’m heading towards I think… at least until I get quotes.

Bill came for the extension footings yesterday, just a low spec mix but still £140/cube over there.

 

[Lakesdigger]

That’s what I’m heading towards I think… at least until I get quotes.

Bill came for the extension footings yesterday, just a low spec mix but still £140/cube over there.

Was there a part load charge on that though?

 

[Skintagain]

That’s what I’m heading towards I think… at least until I get quotes.

Bill came for the extension footings yesterday, just a low spec mix but still £140/cube over there.

100 cube here I was quoted £131 RC40 10 mile haul

 

[neilo]

Was there a part load charge on that though?

No, three full loads.

 

[glasshouse]

Re-sited shed is going up at the new place this next couple of weeks, the floor having been dug into shale rock. I had intended to leave the floor as bare rock, as it wont ever be grain storage again, but starting to wonder again now, as it would stop the possible water ingress at the same time.

If we were to concrete the floor (while the erecting guys are still on site), what concrete spec should I be using? I was thinking 6" thick (with fibres), which will amount to around 110 cube, but what spec? For that matter, what specs are there? I've heard of RC40, but that's about all.

Have you removed the shed from the rented farm?

 

[neilo]

Have you removed the shed from the rented farm?

Yes, first couple of lorry loads are moving across tomorrow. LL could have had it for a song (20yr write down), but being an arse has cost him that.

Not a cheap exercise, but still far cheaper than putting an equivalent new shed up would be (which I needed to anyway).

 

[glasshouse]

Yes, first couple of lorry loads are moving across tomorrow. LL could have had it for a song (20yr write down), but being an arse has cost him that.

Not a cheap exercise, but still far cheaper than putting an equivalent new shed up would be (which I needed to anyway).

Well done.
f**kem

 

[Lakesdigger]

No, three full loads.

Be seated when you price conc for floor then

 

[Tubbylew]

Eventually, I’ll get to sorting the farmland out.

Thats the enjoyable bit!

 

[Sharpy]

SAC recommendation used to be 100mm of c25 for a stock floor, maximum 10 ton axle load. If you need more than that for most jobs then your prep is poor, concrete won't crack if there aren't hard and soft spots. Sometimes however it's cheaper and quicker to skimp on prep and put plenty of rebar and concrete in.

 

[Fendt516profi]

Can't you bring the concrete over too shame to leave them with a nice concrete pad