IMPROVEMENTS IN AND RELATING TO SHUTTERING

摘要

A system for assembly into a self-supporting shuttering for the casting therein of a beam, the system comprising a base shutter component (20), a lower wall shutter component (10) and an upper wall shutter component (30), the lower wall shutter component (10) being provided with first and second locating portions, the base shutter component (20) being provided with a third locating portion and the upper wall shutter component (30) being provided with a fourth locating portion, whereby the first and third locating portions are engageable to lock the lower wall shutter component (10) to the base shutter component (20) when the lower wall shutter component (10) is assembled on the base shutter component (20) and the second and fourth portions are engageable to lock the upper wall shutter component (30) to the lower wall shutter component (10) when the upper wall shutter component (30) is assembled on the lower wall shutter component (10), whereby the assembled shutter components form the self-supporting shuttering.