Foamed concrete is free-flowing but exhibits thixotropic behaviour. It is easily placed, requires no compaction and flows into the most restricted and irregular cavities.

Segregation and bleeding are also inhibited by bubbles and the material can be pumped successfully over vertical and horizontal distances similar to those for pump-able dense concrete.

Foam concrete has a lower density than normal concrete, with dry densities of 400 to 1600 kg/m3 with 7-day strengths of approximately 1 to10 N/mm2 respectively. The lowest densities are achieved using pre-formed foam via a foam generator.

Foamed concrete is fire resistant, and its thermal and acoustical insulation properties make it ideal for a wide range of purposes from insulating sub-bases and roof screeds, to void filling. It is also particularly useful for trench reinstatement.

Terrafoam recommends Zenfoam plus foam concentrate.

Foam concrete is an ideal product that can be made from low grade recycled materials, such as excavated road materials through volumetric mixers is a patented process.