View Single Post
  #3   Report Post  
Posted to uk.d-i-y
Brian Gaff \(Sofa\) Brian Gaff \(Sofa\) is offline
external usenet poster
 
Posts: 2,699
Default Concrete prefab, base size., Have I mucked he size up?

So were you economising in concrete?
Brian

--
--
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Chris Bacon" wrote in message
...
Asked this over at Cormaic's, but no joy (maybe (much!) laterrrr, but
panic on, so here now). This is the slab I've just made with my Aldi
concrete mixer).



Nominal 6000mm by 5000 mm prefab garage for use as garden shed (by my
measurements it will be 6020 by 5035 actualsize).

Slab is 6050 by 5050.

Have I mucked it up and made it too small to use?


The "Plain ConcreteHardstanding" section of (pavingexpert) suggests at
leasat 150mm between edge of slab and garage structure. I've got 15mm,
give or take a couple of mil.



DATA (if required):

ASCII art attempt at floor slab section:

.-------------------//----------------,
| // | 200mm
| --------//-------- |
|__________| // |_________|

600mm

The edges (keels) of the slab are 200mm deep, 600mm wide, all around,
changing to 100+mm in the middle, with A142 mesh.

Corner post weight 100kg, side post weight 70kg, section weight 36kg each
4 sections per bay so 144kg/bay. 6 bays per side 5 bays for back.

Therefore weight of concrete structure each side is ~1414kg, back is 1160,
front will be much less because mostly 4 x side-hinged doors, roof
structure will be angle iron + Sterling board + corrugated iron.