ICF walls being poured on a recent project.  The concrete is pumped into the stacked and braced Insulated Concrete Forms. The man above is placing the concrete and the man below is checking the height of were the concrete is the wall forms.  Another man, not depicted here is following behind the man above and he is using a concrete vibration tool to consolidate the concrete.  The man above places the concrete in three to four foot lifts.  He will loop the building 3 times with the hose and eventually top off the walls on the third loop.