We are newbies at ICF and will do this small foundation using Amvic's 6" block (11" overall).

I'm a small bit concerned that we will have issues with the Lego-type interlock between courses, where we have the cut (infill) blocks in each run of wall?

The attached pic shows our foundation.  It is a stepdown and is for a house with a walkout lower level, the walkout endwall being wood framed.  You can see the "infill" blocks in each wall run clearly, highlighted in color.

Is this much of an issue to deal with at building time?

Try to maintain the blocks horizontal interlock, by adjusting your foundations overall dimension.

Usually this is not a biggie. an inch either way usually.

Looking at your plan further it appears you are maintaining the interlock. Good for you.

Carefull with "cuts" or "fillers" close to corners or wall ends. Additional plates may be  required.

Questions for you :
                                1. Have you taken the Amvic Installers Course?
                                2. Are you getting Technical Support from them?
                                3. Why would you consider infilling an ICF wall with wood frame?
                                    Kinda defeats the purpose.
                                4. Will you be assisted by concrete professionals during your pour?

Thanks for the response.  Answers to your questions, in sequence:

No, we've not taken the Amvic Installers course.  None are available in our area.  We will attend a Logix course in a few weeks, though, and Amvic has promised us an on-site person.  We're getting a better price on the Amvic package, thus the choice.

Yes, we'll get tech support from Amvic.

The front wall has very large areas of windows and doors, and is easier done wood-framed.

We know how to handle concrete, and will be assisted by a guy that will come with the pump operator on pour day.

I though afterward about the cut blocks, and realized they would be better off in the middle of a wall run than at the end.  We'll do that where we can, but on a couple of the short runs, we're stuck with what we've got.

As regards whether the cut blocks will mate, my guess is that they will if cut on (IIRC) a 3" module.  Maybe it was 6".  It probably relates to the pitch of the mating interlock nubs.  If we get interference though, it should be a simple fix.

We haven't been licked yet. By windows that is.
But I'm licked here trying to post a pic. Any tips. Thanks PC.


http://s83.photobucket.com/albums/j295/ericicf/ICF%20Web/

< img src=image_source >

Where image_source is "http://www.some_website/image_name"

Should do it.

Gene,
Corners are always problems. You have two extra bothersome areas to watch. The window in the short wall and the rear short walls. Make sure you strap them or brace them very well. Keep your pour rate down to five or six feet per hour.
Regards,
Joe

How will you attach wood framing in large opening to concrete core?

Gene,
I like your graphics. What software are you using?

I would like to add, Nice Sketches!

I'm assuming Sketchup?

Yes, Jim, it's Sketchup.  My favorite tool!

We examined the quoting we have for Amvic versus Logix, and are now going back to using Logix.  Pricing is actually better, all things considered, and support is much stronger.  With the Logix corner blocks being 16 x 32 and the block overall thickness being 11-3/4", it changes our nominal block cutting scheme somewhat.

Here is what we will be doing on the two runs that need halfblocks-plus-partials to deal with the run lengths we need.

You will not be dissapointed with Logix. Great block. The corners even have a 45 degree support which in my opinion makes there product that much stronger and better.