Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1972-11-24
1976-01-20
Anderson, Philip E.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
52 2, 264 469, 425110, 425470, B29D 2704
Patent
active
RE0286893
ABSTRACT:
1. A method for erecting a building structure comprising: inflating a form, [positioning thickness gauges within the inner surface of the form, said thickness guages being preformed from a plastic foam material,] spraying a [n additional quantity of the same] plastic foam material against the inside of the form to build up a [layer having a thickness determined by the thickness gauges which become integral with the] layer, [and] allowing the plastic foam to harden and become rigid and self-supporting [.] and coating the inside of the layer of foam with a layer of concrete.
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