INNER FORM FOR MANUFACTURING HOLLOW PCa MEMBER

PROBLEM TO BE SOLVED: To save labor required for releasing a concrete form by ensuring the certain peeling of the form from the entire surface of a concrete by air deaeration, in the inner form designed for form release by the air deaeration. SOLUTION: This inner form for manufacturing a hollow PCa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TADA NOBURO, TAMURA KAZUYASU, WAKABAYASHI YUJI, URAKAWA KAZUYA, ONIZUKA MASATSUGU, NISHINO ATSUMASA, KONDO SATORU, OMORI TOSHIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE PERFORMING OPERATIONS REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SHUTTERING TRANSPORTING WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To save labor required for releasing a concrete form by ensuring the certain peeling of the form from the entire surface of a concrete by air deaeration, in the inner form designed for form release by the air deaeration. SOLUTION: This inner form for manufacturing a hollow PCa member comprises a core form 5 as a structural support having a one size smaller sectional outer shape than the inner space sectional shape of the hollow PCa member to be manufactured, a mat-shaped air panel 7 which is attached to the outer face of the core form 5 and is contractable by air deaeration and a cotter sheet 8 which is attached to the outer face of the air panel 7 and at the same time, has a protrusion for forming a cotter.