Concrete Header in Sections

[StakeOut]

I've taken out a concrete patio that didn't fully cover the floor joists.

I'm going to pour a concrete header as a water barrier and as a termite barrier. Of course a new patio could poured against the header at a later time.

The concrete header will be about 4" thick and about 16" high and working up from what might be called the brick ledge. I would like to pour the concrete header in four sections and so I am thinking about 1/8" thick 316 stainless steel plates perpendicular
into the header to make the sections.

Would the plates be better longitudinally into the header making a concrete seam (of new pour against prevous pour) or
perpendicular into the header with the plate as the seam ?

 

[dicksewerrat]

I would place the concrete under the brick veneer and up one or two bricks. Get a bug exterminator to do a termite inspection and maybe buy the termite treatment package. The concrete will only slow the bugs down, not eliminate them.

Richard A. Cornelius, P.E.

http://WWW.amlinereast.com

 

[StakeOut]

I'm trying to decide on the best way to section a 25' concrete header wall together. The wall will be 5" thick and 16" tall. I have some flat stainless steel plates in 5" x 16".

Of course the concrete header wall should be as good of a water and termite barrier as a brick and mortar wall.

 

[bimr]

I don't fully understand what you are trying to describe.

It seems like you plan to add a 5-Inch thick by 16-Inch high concrete facade on top of an existing brick ledge.

The building code generally requires the foundation wall to be 9-Inches or so above grade. Why don't you just increase the height of the foundation wall?

You have not said what thickness the foundation wall is. You have not said what climate that you are working in.

It seems that you will need to anchor the concrete so that it will not fall off the structure.

The long term durability of the thin concrete may be an issue in some climates.

A better alternative is to raise the top of the foundation wall while leaving a ledge (at a lower level) on the inside of the foundation wall for the joists to hang on.

One product that can be used is a high-density, polyethylene form pockets (block outs) cast into the foundation wall, so that the ends of each floor joist can be supported directly by the foundation wall.

http://www.famcomfg.com/joist-pocket-liner.html

http://www.structuraldynamics.com/castinplace.php