| 摘要 |
Shuttering for use in casting a slab/beam over a substrate comprises a hollow support structure defining a multiplicity of four-sided cells (8, 9) bounded by a first set of walls (6) extending across the structure in a first direction and a second set of walls (7) extending across the structure in a second direction transverse to the first direction. The support structure is able to be placed on the substrate to support the slab/beam during casting. The support structure is formed with its spaced apart walls (6, 7) by a moulding process and is moulded from expanded plastics material. The structure has a first supporting condition in which the depth of the support structure is D and a second collapsed condition in which the depth of the support structure is d, wherein d is less than 0.38D. |
