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Re: Alternate Cold Joint Location

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Bill,

I can see a few problems with both options:

Option ‘A’ requires you to pour the floor before building your walls and the rest of the building. Here in the Great White North, it is often important to get the building up and enclosed before pouring floors. It is also easier this way to dowel in the floor as you can bend the vertical bar down when you are ready for the floor slab.

Option ‘B’ allows the contractor to get the walls up, bu the bar protruding into the slab is a tripping hazard for the workers and also makes compaction of the sub-base more difficult, if not impossible. They usually end up getting bent up out of the way, but this is a nuisance.

Option ‘C’ is use an L shaped footing that allows the walls to go up and provides a seat for the floor slab, with rebar dowels out of the way. Then, the contractor complains about how to form the step, i.e., 2 pours or fancy formwork or a masonry course.

Gary Hodgson


Bill Allen wrote:

Dear colleagues,

A contractor has requested an alternate cold joint location. In the sketch found in the link below:

http://www.allendesigns.com/projects/20603/20603AlternateColdJoint.gif

Alternate A is the method shown on the approved plans.

Alternate B is what the contractor wants to do.

The dowels match the slab bars.

Should I have a concern about the request?

Regards,

T. William (Bill) Allen, S.E.

ALLEN DESIGNS <http://www.AllenDesigns.com>

Consulting Structural Engineers
V (949) 248-8588 • F(949) 209-2509


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