Bearsixty7
Veteran Member
Ok, Educate me on ground beams and pouring a slab next to an existing one. I have poured a few free standing slabs over the years and understand compacting the ground, constructing forms, use of rebar and chairs, etc.
Now I am wanting to pour a 8.5' wide x 40' long 5" thick slab beside my existing concrete floored shop. I will eventually add a frame and roof only to match the existing roof in regards to material and pitch.
This slab (carport if you will) will just be housing the tractor and all the implements, etc. so nothing real heavy.
What I can't find is how to calculate how wide and deep the ground beam needs to be.
I believe since the roof supports will just be at the outer edge, that is the only place I need a ground beam, correct?
Also, what is the best way to handle the gap between the old slab and the new one?
I planned to drill into the old slab 4 inches and glue in some of the ends of the rebar with AnchorFix-1 Anchoring Adhesive. With the new slab being 5" thick I planned to drill the holes 2-1/2" down from the top of the old slab to be centered in the new concrete. I was going to also attach a 1x4 vertically along that joint, notching out around the rebar to act as an expansion and control joint. Will that work or what is the better method?
Now I am wanting to pour a 8.5' wide x 40' long 5" thick slab beside my existing concrete floored shop. I will eventually add a frame and roof only to match the existing roof in regards to material and pitch.
This slab (carport if you will) will just be housing the tractor and all the implements, etc. so nothing real heavy.
What I can't find is how to calculate how wide and deep the ground beam needs to be.
I believe since the roof supports will just be at the outer edge, that is the only place I need a ground beam, correct?
Also, what is the best way to handle the gap between the old slab and the new one?
I planned to drill into the old slab 4 inches and glue in some of the ends of the rebar with AnchorFix-1 Anchoring Adhesive. With the new slab being 5" thick I planned to drill the holes 2-1/2" down from the top of the old slab to be centered in the new concrete. I was going to also attach a 1x4 vertically along that joint, notching out around the rebar to act as an expansion and control joint. Will that work or what is the better method?
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