how we can produce Insulated Concrete Form(ICF)?

Answer 1

I'm not sure what you mean by "produce". Do you mean manufacture the actual forms or use them to build a basement/house?

If manufacture, you will have to consider if this is for sale or your own use. If for sale, there may be legal issues if you simply reproduce an existing model, so you would need to design and have tested each variation (straight section, corner, 45 degree corner, etc.) ... a long and costly process.

If for your own use you could potentially do it by combining styrofoam with suitable wire or plastic spacers, but it would be risky unless you really overbuilt since they might not withstand the pressure from the liquid concrete before it cures. Such home built forms would also likely lack (but might not need) the modular nature of commercial forms.

If you mean "use", each manufacturer provides basic instructions and many offer courses. The basic idea is to assemble the forms per instruction on suitably prepared footings, framing around window and door openings, etc and add rebar when the forms have reached a certain height, add concrete and continue upward after a defined curing time. The resulting walls are strong, insulated on the inside and outside and can be finished with a choice of materials.

While there is a degree of complexity a competent DIY'er can certainly do much of the work, but it is advisable to have a trained professional assess the assembly before and be present for the actual concrete pouring.

See the link to the ICFA below for more information.

Hope this helps.