Lightweight Concrete Deck Topping

The lightweight aggregates used are usually expanded shale clay or slate materials that have been fired in a rotary kiln to give them a porous structure similar to volcanic rock.

Lightweight concrete deck topping.

For commercial buildings is steel. Lightweight insulation concrete topping. Lightweight concrete made with expanded shale clay or slate aggregate produced by the rotary kiln method has also been used very successfully in an operation of this kind. A structurally sound plywood roof deck about 15 feet wide and 60 feet long dead flat forms a walking plane and terrace for housing units above.

Lightweight aggregate concrete topping. The wood deck is to be covered by a hot mopped fiberglass roofing system which in turn will be protected by a concrete topping sloped to drains which will also be a walking surface. Lightweight concrete is typically applied as composite slabs over vented metal decks that meet the requirements of astm a653 and are of the proper type and gauge to withstand the structural live and dead loads for the facility. Elastizell roof decks are cast over galvanized steel decking corrugated or fluted precast or cast in place concrete and wood.

Lightweight floor toppings can be made using water sand cement and a foam made of fine air bubbles. Other deck toppings are available such as poured gypsum and lightweight concrete with integral insulation but these are considered substrate covers and not roof decks. The shape of profiled steel decking may vary as shown in fig 3 and fig 4. While there is often a higher unit cost for lightweight concrete there is significant structural steel tonnage and cost savings with using lightweight concrete slabs on metal deck.

Formally west coast light weight concrete aus has specialized in concrete toppings for 35 years. Compared with a normal weight slab lightweight slabs may also save inches of structural framing depth per story which can result in a substantial savings in steel foundations and cladding costs for multistory. Composite lightweight concrete floor system. The most prevalent roof deck in the u s.

Our topping slabs can also be found on podium courtyards as well as inside planter boxes. Easy to make and almost self leveling this material ha. If one uses a lightweight concrete weighing 90 pounds per cubic foot a 1 1 2 inch thickness of this concrete weighs about 11 pounds. From elevated walkways to balconies and terraces we can cover all exterior areas of wood framed construction.

Elastizell concrete is produced by mixing elastizell expansion material into a properly designed cementitious mixture.