| 摘要 |
The invention relates to formwork for concrete slabs to be cast in situ. The formwork comprises formwork elements including polystyrene panels (10) and polystyrene spacer elements (26) that can be supported by a suitable support structure at a required elevated level above a support surface in a configuration in which they define a formwork for a concrete slab. The panels (10) and the spacer elements (26) are configured so that they engage one another when forming a formwork in a configuration in which their inherent strength qualities and their mode of inter-engagement permit the support of the load of concrete cast thereon when forming a slab. The formwork elements also are configured so that they can form an integrated part of a slab formed, when their operative bottom faces can provide a ceiling finish.
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