B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/120
B28B 1/08 (2006.01)
Patent
CA 1152298
ABSTRACT OF THE DISCLOSURE: Casting and demolding of a concrete base for a column and for stripping the form from said base. The latter has a base plate, a tubular, upwardly directed portion situated centrally on the base plate and having recesses for forming thin-walled portions, and a plurality of stiffening ribs con- necting the tubular portion to the base plate. The base has an outer, removable form portion defining the outer surfaces of the base plate, the stiffening ribs and the non-recessed parts of the tubular portion, an inner, removable form core defining the inner surface of the tubular portion, and separate form portions defining the recesses in the tubular portion. The form portions are mounted and reinforcement is inserted into the form, which is then placed upside down on a vibrating table, the form is filled with concrete and is vibrated so that the concrete completely fills the form. A flat lid is placed over the form, defining the bottom of the base plate. The form with the base is lifted, turned right and put down on a suitable support, and the form is stripped on the lid directly after the casting. The inner form core is first with- drawn a short distance, and the form core and the outer form portion are then withdrawn together and returned for erection of the form for the next casting, while the separate form portions for the recesses are left until the concrete of the base has hardened in the required degree.
367795
A-Betong Ab
Robic Robic & Associes/associates
LandOfFree
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