Lightweight Concrete Floor Thickness

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.

Lightweight concrete floor thickness.

An example is lite deck which costs around 3 25 sqft of floor surface for the form. A structural light weight concrete mix has a density of about 105 pounds per cubic foot compared to normal concrete with a density of 150 pounds per cubic foot. Lightweight the generic name of a group of aggregates having a relative density. Concrete weighing 100 pounds per cubic foot and 1 1 2 inches thick weighs about 12 5 pounds.

The other option is a wood structure with assumed 2 layers of 3 4 subfloor vapor barrier and then 2 3 of light weight concrete. Most notably renzo piano s the shard a marvelous 95 floor structure made of lightweight concrete that took only four years to build. The light weight concrete density is less because lightweight coarse aggregates and sometimes lightweight fine aggregates are used which make the concrete weigh less. Lightweight concrete after being placed in a drying oven at 230 9ºf 110 5ºc for a period of time sufficient to reach a density that changes less than 0 5 in a period of 24 hr.

Because lightweight concrete is typically thinner it is made. It is used in the construction of multistory buildings. This type of lightweight floor system is constructed by pouring lightweight aggregate concrete into the fixed forms of the concrete slab. The thickness of solid lightweight concrete floor system is determined according to the specifications of aci 318 14 as discussed in the following sections.