I do still use regular clay based products for the "dirty" parts of the shop, but this is now my go-to for the areas around torn down machinery and in-progress vehicles... natures-broom.com
It would definitely be best from a strength perspective. But...Much of that strength would be overkill. Tilt up panels have been used for years in foundation work, with excellent results. In addition, forms to do 1400+ square feet of wall in a single pour is serious $$.
Thanks for the input...
I haven't decided yet. I'm considering buying precast panels, but that might be cost prohibitive. My next choice would to be to cast the panels myself, on site.
The third option is to pour the walls in place; I'd prefer to not go this route due to the large area to form.
I'm beginning planning on my new shop - a 50 x 50, single slope roof, 14' high on the front wall, 12' rear wall. The rear and right side walls will be retaining walls, all but about 3' - 4' below grade. Has anyone here done anything similar? I'm thinking of going with precast concrete panels...