COMPOSITE PRE-STRESSED ROOF SLAB MADE OF FOAM GLASS Russian patent published in 2001 - IPC

FIELD: construction engineering. SUBSTANCE: roof slab that may be used in fabrication and application of roof slabs of multistory and farm buildings has longitudinal active reinforcement and foam glass. Novelty is that longitudinal active reinforcement is made of high-strength steel, grades A-IV, A-V, and welded to form skeleton with metal anchor angle pieces arranged at ends of slab; pre-stressing in rods is ensured by foam glass swelling process due to temperature effect. EFFECT: enlarged functional capabilities; improved heat-insulating proprieties of shielding structure; facilitated manufacture. 2 dwg