I feel like the Aggi Chicken farmer.... the fella graduated from one of
the most famous Collages based in agriculture and decided to go into the
chicken business.
He bought 3 dozen chickens and planted them all head first.... and they
died
Hmmm being a smart fell he got 3 dozen more and planted them feet first and
again they died.... Hmmm
Shot off a letter to the school informing them of the situation and
requested advice on what to do..... the schools Dean sent an immediate
reply..... Dear Sir we are unable to advice you further without a soil
sample!....
Seriously I don't necessarily use a hardcore as you put it....but then
again I'm not familiar with your soil.... our base material here is Very
solid and requires no compacting.... we use a bit of sand on top of our
clay base and things just stay there.... no earthquakes so on and so forth.
As for the footers.... if you have an block wall to pour against it's
fine... that is your footer.... the slab will stay within the confines of
that Block.... if you had a choice I'd have recommended Chair Block on the
top course ( it's one of those weird looking blocks that allows the slab to
be poured right into it)
As for the opening in a block walled slab for like the door areas... those
have to have a footer.... and again I've never used anything but the
concrete in a footer...
Okay I'm off again to play in the Rock Business.... here is my website for
the rocks if you would like to see what I do.... www.turksrock.com and
here is my car website if you would rather check out my shop.... LOL...
http://downtown.ala.net/~kturk
Keith
----------
> From: Conrad <conrad@conrad.uk.net>
> To: 'shop-talk@autox.team.net'
> Subject: RE: Slab for an outside lift
> Date: Monday, February 25, 2002 7:40 AM
>
>
> Keith thanks for the reply. It brings up a new question tho...
>
> > First the altitude of the shop floor is your major
> > concern.... if you can live with it above the current grade
> > there is no harm in building it up.... BUT.. you do have to
> > have some form of footer which maintains the monolithic slab
> > in the same location over time....This is a 12-18" deep and
> > wide trench around the outside of the slab.
>
> I see your point. This very subject has troubled me about the floor
inside
> the barn as well:
>
> The barn currently has a block wall on 3 sides (built by the preious
> owners). I am putting a concrete floor inside. I am making the floor
level
> with the top of the foundations for the wall, ie as if the wall had been
> built on my floor. The foundations for the walls are rough as if the
> concrete was just poured into a trench, so its proving diffcult for me to
> get a clean edge for me to hardcore/concrete up to. Given what you say
about
> my outside slab, should I just work up to the walls as best I can, and
dig a
> new trench around the inside to the walls to locate my slab?
>
> Do I put 6" of hardcore in the bottom of the trench and compact that
> (meaning that the trench has to be wide enough for the compactor) or does
it
> not need hardcore down there? It sort of seems like I would have a job to
> get a nice edge to the hardcore along the sides on the trench as well -
does
> this not matter?
>
> Thanks for your help, sorry if this sounds a bit over-worrying - I just
> don't know whats important and what is not.
>
> Conrad
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