Precast concrete building panels - are ribbed light-weight slabs forming walls and roofs or floors

摘要

Precast concrete building panels, or panel planks embody straight (2) or longitudinally L section elements (1) of slender proportions and longitudinally ribbed. Pref. the L section forms a floor or ceiling and part walls of suitable length to abut openings for e.g. windows. Elements can form multi-storey buildings and elements are connected by bolts or prestressing arrangements. Ribbed surfaces can be exposed or hidden as desired. Spaces between ribs can accommodate ducts etc, and cladding panels can incorporate windows etc.