| 摘要 |
<p>A plate (1) for a concrete formwork which comprises a core member (2) of flat resin material, resin sheet members (3) pasted on both surfaces of the core member, and a plurality of crosspieces (5) fixed to peripheral portions and a central portion of one surface of one sheet member by nails (6), and which is used as a formwork panel (4), the resin material of the core member (2) having a porosity, whereby the core member (2) has a capability of holding the nails (6) firmly, the sheet members (3) having a water imperviousness and a high peelability with respect to concrete, the resin material of the core member (2) and that of the sheet members (3) having substantially the same composition.</p> |
