Foam Concrete Properties; Low Density, High Strength
Typical cast densities of foam concrete range between 350 and 1600kg/m3 and give compressive strengths of 0.2 to 12.0+N/mm2. Due to its low density, foam concrete imposes little vertical stress on the substructure - a particularly important issue in areas sensitive to settlement. Foam concrete is a viable solution for reducing loading on burden soil and in its hardened state is less susceptible to differential settlement.
Heavier density (1000kg/m3+) foam concrete is mainly used for applications where water ingress would be an issue - infilling cellars, or in the construction of roof slabs for example.
Well Bonded Body
Foam concrete forms a rigid, well-bonded body after hydrating. It is effectively a free-standing (monolithic) structure and does not impose lateral loads on adjacent structures. The flowing and self-compacting attributes of foam concrete allow it to be constructed into any desired profiles through forming, stepping, or even machining successive lifts to shape.
