Patent ID: 7131627

Claim:
A concrete forming panel for use in construction of a self-sustaining concrete structure from a concrete mix containing flowable constituents which are capable of migrating from a concrete pour during curing of the mix, said forming panel comprising: a load-bearing face plate having a front face that faces in a forward direction and is adapted to receive at least a part of the concrete pour thereagainst during curing of the mix; structure projecting in an opposite, rearward direction from said face plate; and a flexible barrier element mounted on said structure in spaced relationship to said front face and adapted for impeding migration of the constituents out of the pour past the barrier element until the concrete mix has cured, said face plate having an outer edge margin, said structure being located adjacent said outer edge margin and including part of a frame upon which said face plate is mounted, said face plate having an opening disposed inwardly from said outer edge margin, said structure further including a support that positions said barrier element adjacent said opening, further comprising a door swingably mounted on said support for movement between open and closed positions relative to said opening, said barrier element being disposed to cooperate with said door in sealing said opening when the door is in said closed position yet permit the presence of a tie bar in said opening.