| 摘要 |
The invention relates to a permanent plastic formwork system formed by two parallel surfaces, namely an outer surface (1) and an inner surface (2), consisting of a plurality of flat or longitudinally curved, hollow plastic slats (4) obtained by means of extrusion, provided internally with metal sections (13) providing them with rigidity and joined longitudinally by means of tongued-and-grooved ends (4a and 4b), separators (5) existing between the two surfaces. Said separators are provided with a threaded area (6) and an inclined appendage (8) for securing the rebar mesh (3) located between the surfaces. The slats (4) are secured to the ground using U-shaped parts (9) containing a threaded rod (10) that can be used to clamp and fix same. In addition, in closed structures reinforced internal elements can be incorporated diametrically, such as metal bars (11) with flat surfaces (12) at their ends enabling same to be secured to the above-mentioned inner surface (2).
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