FAQs - Cellular Concrete and Lightweight Concrete

Is cellular concrete the same as lightweight concrete?
No. Cellular concrete weighs considerably less than typical "lightweight" concrete. By definition "lightweight" concrete is a concrete made with aggregates that are lighter than typical stone aggregates. Typically, lightweight concrete has a density + 120 lb. per cubic foot. By contrast, cellular concrete uses the internal air cell structure instead of an aggregate and exhibits densities from 20 to 60 lb. per cubic foot. The American Concrete Institute International (ACI -116R-90) offers this definition: "Concrete, lightweight: concrete of substantially lower density than that made using aggregates of normal density."