| 摘要 |
<p>A void former (10) for the placement of reinforcing bars (11) in a pre-cast concrete panel for tilt-up construction has a base (23) for attachment to a casting surface, and a pair of tapered legs (22), the total height (24) of the void former being equivalent to the thickness of the desired pre-cast panel, with each leg having a flexible tell-tale (25) capable of protruding from the top surface of the panel during the casting process. After the concrete panel has hardened, the void formers can be removed leaving a U-shaped void. A U-shaped bar or fastener (11) can then be driven into the void, with its ends protruding from the surface of the panel, so that the bars (11) can be connected to reinforcing bars forming part of the building structure.</p> |
