Lightweight Structural Concrete Roof Deck

Structural concrete deck a cast in place concrete deck serves as an integral part of the structure and is designed to carry heavy loads normal weight concrete is typically used for cast in place construction.

Lightweight structural concrete roof deck.

As a result lightweight structural concrete inherently con tains much more water than normal weight structural concrete. With standard structural concrete the aggregate used is sand and stone. 1 2011 structural lightweight concrete roof decks suggests its contractors pro vide the designer of record and gener al contractor with a copy of the mrca bulletin that discusses issues on mois ture in concrete along with having them review the american concrete institute aci document aci 214r 03 guide for. However when a lightweight structural concrete lwsc roof deck is poured in place it uses significantly more water.

They are often however part of a building design when future above roof level floors are contemplated. Roof assembly installation can occur immediately following the installation of our roof deck panels. Light a lighter weight solution than poured concrete that can reduce the use of steel in the overall structure. Beneath the roof cover structural concrete roof decks are commonly topside insulated using adhered insulation panels or cast in place lightweight insulating concrete.

Structural concrete composite decks are somewhat uncommon at the roof level. Structural concrete composite deck a supported steel panel deck system filled with normal weight or structural lightweight concrete. The normal weight concrete employs standard aggregates i e. The steel deck panels are embossed in a manner which when filled with concrete allows the elements of the construction to respond to load as a single unit.

With structural lightweight concrete a mix of shale slate slag and clay are used and with this mix the aggregate is fully saturated prior to mixing. Product evaluation code report 14076. Structural panels concrete roof deck is an innovative technology designed to provide a structural roof sheathing without the need for thermal barriers pouring setting or curing which resolves the latent moisture issue commonly found in roofing with poured concrete. Hard rocks with a low water absorption rate and weighs approximately 2403 kg m 3 150 lb cf.

Lightweight structural concrete is used in roofing related appli cations for cast in place concrete roof decks using removable forms.