Invented in Sweden in the second decade of the twentieth century, cellular concrete was used commercially across Scandinavia and in Germany and the United Kingdom in the 1920s and gained traction throughout Europe and much of the rest of the globe after the Second World War. In these early years, cellular concrete was produced with portland cement, water, and a foaming agent, and used mostly in insulating roof and floor screed applications and in underground pipe  nstallations.

It is known for its properties including thermal and sound insulation, as well as being lightweight.

Cellular Lightweight Concrete (CLC) is a type of concrete in which the coarse aggregate (gravel) is replaced by millions of minute air bubbles. Cellular Lightweight Concrete is produced like normal concrete under ambient conditions. The size of blocks for the external walls will be 600x200x200mm and the internal partition blocks will be 600x200x100mm nominal size. Any desired size as per the requirement also can be produced. Working with these large sized lighter blocks is much faster, substantially saving on mortar consumption for masonry and plastering. These blocks can also be cut and nailed like wood.