SHUTTERING SHIELD Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: this relates to design of shields of replaceable shuttering for civil and industrial construction activities. Shuttering is used in concrete work. Shuttering shield has plate made of thermoplastic polymeric material which is not adhesive to concrete. Upper surface of shield creates decking. Arranged in body of plate at end-face sides and/or at rear side are mounting loops and embedded fittings for fixing adjacent plates in working position. Plate is made with bending rigidity which allows for breaking away of its decking from concreted structure when unshuttering along required line within limits of elastic deformation of plate. For levelling of adjacent shields in single plane and increasing load-bearing capacity of shield, shuttering shield can be provided with beams secured to embedded fittings at rear side over length of single plate or several plates. For transformation of shuttering into thermally-active shield, heating member made of carbon-graphite paper with corresponding outlets for switching purposes can be located in body of polymeric material. To reduce loss of heat during heating operation, body of plate at least through part of its cross-sectional thickness can be made with high heat-insulating characteristics primarily due to foaming of thermoplastic polymeric material in process of forming or by introduction of polymeric granulated material. Aforesaid embodiment of shuttering shield ensures its reliable functioning and high repairability. EFFECT: higher efficiency. 3 cl, 2 dwg