How soon after placing the concrete can we backfill or put floor/roof systems onto ICF walls?
You should wait a minimum of seven days and follow guidelines set by your structural engineer.
You should wait a minimum of seven days and follow guidelines set by your structural engineer.
Consolidation with an electric vibrator with a 1-inch head and a 12-14 foot shaft is ideal.
Concrete can be placed using any one of several methods: concrete pump, conveyer belt, crane and bucket or by a chute directly from the truck. A boom pump is far and away the easiest method using a 3" or 2.5" reducer in the hose to reduce the concrete velocity.
Generally walls will require 3000 psi concrete or as specified by your engineer or code. Maximum aggregate size is 3/4" and placed at a 5-6" slump.
Yes. Amvic ICFs are one of few forms on the market that are engineered to withstand the internal vibration. In fact, this practice is strongly recommended by Amvic.
Yes. Amvic offers 3 standard radius forms and custom radius forms can also be ordered. Any angle that is required can be made by miter cutting the form at the proper angle and using foam to join the edges.