cement bonded particle board
I was at a trade show this past weekend and was introduced to cement bonded particle board. Two brands that produce this are Versaroc and Amoroc (may be more). Basically, what they're saying is it's moisture resistant and fire resistant, among other things. I'm looking at it for a potential commercial application where we layer drywall (for fire block) and then plywood (for exterior walls). I need to do the calculation on the labor savings and whether it merits the higher material cost.
But my question to you construction experts: is this a product that meets code and is widely accepted as a substitute for drywall or would I end up having to deal with inspectors who don't know or trust the stuff?