False formwork for moulding concrete panels having a false skim coat

摘要

Disclosed is a concrete casting false formwork system when used to form a concrete panel. The system includes a number of concrete sideforms which are able to be interconnected to define a perimeter of an opening in the concrete panel to be cast. The system includes a support structure carried by the sideforms for supporting components used to mould a false skim coat of concrete overlying the opening when the concrete panel is cast. The system also includes an opening demarcation portion carried by one or more of the sideforms. Each opening demarcation portion defines a zone of weakness to demarcate the skim coat of the cast concrete panel from a remainder of the panel and to facilitate removal of the skim coat from the remainder of the panel by breakage along a zone of weakness.