What is Cellular Concrete?


Quite simply, it’s concrete infused with air.


  • Developed in Europe in the 1920’s

  • Used extensively in the United States by engineers, contractors, and municipalities

  • 3 components: Cement, Water and Preformed Foam

  • Up to 20’ lifts

  • Pumped thousands of feet in a single pour

  • Accurately mixed to a wide range of densities, from 125 pcf down to 25 pcf


Used beneath roadways, bridge ramps, buildings and other structures, cellular concrete reduces soil loading while adding compressive and shear strength.


Contractors and engineers also use cellular lightweight concrete as backfill for tunnels, pipe, annular space filling, abandoned water and sewer lines, to provide shock absorption in earthquake zones, to fill voids in silos and abandoned mines, and to reduce hydrostatic pressure on walls.


In many areas of the country state departments of transportation (DOTs) have developed standards for cellular concrete and many others are in development right now.


Large agencies, such as the U.S. Army Corp of Engineers and the California DOT (Caltrans), are steady consumers of this product. More agencies are learning about the benefits every day.



Information supplemented by Tunnel Business Magazine

Cellular Concrete: Filling the Void

Posted on Mar 28, 2013 in Technical Papers



Cellular Concrete Bridge Abutment