This 1964 image is perhaps the closest GRAP that has ever arrived at the Op art. It shows two workers inside a large conical depression with fluid sides, which is a plastic form made of polyester resin reinforced with fiberglass.
The form will be used to launch concrete members similar to the tree to frame the IBM Garden State Office building in Cranford, NJ, each concrete tree has a 22.5 -foot square.
A profile that was constantly curved from the base of the column to a waist of 10 in. The striations work in the column and radiate on the edges of the slab.
The adjacent trees varied 27 inches in height, leaving the vertical lagoons to fill with plate glass, forming clerk windows. Portland, Ore. BASATE STRUCTURES, INC. He used wood models as patterns to make shapes.
Each set of shapes included nine sections: four slabs, one capital and four sections of columns, screwed together with flange ribs. After launching -removing the forms was very difficult. The solution was to drill 120 small holes in each set of forms and fill them with Massilla.
After the cleaning of each cast, the massif was cleaned, the tubes were inserted and the compressed air was flown, which released the forms and allowed them to be free. The casting was made by the general contractor, Mahony-Troast Construction Co., Clifton, NJ
