Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Arched – domed – or vertical-cylindrical structure
Patent
1986-10-15
1988-05-24
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Forming structural installations in situ
Arched, domed, or vertical-cylindrical structure
52 2, 249 65, 264 33, 264 35, 264228, 264229, 264314, 425DIG112, E04G 1102, E04G 1104
Patent
active
047464712
ABSTRACT:
A method of constructing a reinforced concrete structure (e.g. a cement building or pipeline) wherein an inflatable form is placed on a precast foundation and confined thereto by wrapping the exterior of the inflatable form with a layer of chain link fencing fabric. For large structures, a plurality of adjacent inflatable forms (preferably pneumatically interconnected) is employed wherein either the exterior interstitial spaces between adjacent forms are occupied by lightweight spacer means or structural walls and support means are present to further anchor the chain link fencing fabric. The inflatable form can then be highly pressurized such as to prestress the chain link fence and a uniform layer of fiber reinforced cement is applied to the form. The resulting thin walled structure exhibits excellent structural properties virtually free of form deformation and cement sloughing.
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Concepts in Concrete, "Air-Inflated Forming System", sales brochure, Tulsa, OK.
"Air Formed Drainage Structures", C.I.C., Inc., sales brochure, Tulsa, OK.
Housel James C.
Woo Jay H.
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