Lightweight Structural Concrete Roof Deck

Hard rocks with a low water absorption rate and weighs approximately 2403 kg m 3 150 lb cf.

Lightweight structural concrete roof deck.

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. The normal weight concrete employs standard aggregates i e. The end result of the structural lightweight mix is a deck that can be 20 25 lighter than standard structural concrete.

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. As a result lightweight structural concrete inherently con tains much more water than normal weight structural concrete. Structural concrete composite decks are somewhat uncommon at the roof level. Product evaluation code report 14076.

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. Roof assembly installation can occur immediately following the installation of our roof deck panels. 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. Beneath the roof cover structural concrete roof decks are commonly topside insulated using adhered insulation panels or cast in place lightweight insulating concrete.

They are often however part of a building design when future above roof level floors are contemplated. However when a lightweight structural concrete lwsc roof deck is poured in place it uses significantly more water. 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. Structural concrete composite deck a supported steel panel deck system filled with normal weight or structural lightweight concrete.

Usg s structural panel concrete roof deck can be applied with mechanical fasteners to serve as a structural substrate for direct mechinically or adhesive applied roof systems.