Foamed concrete is a lightweight, highly flowable, limited strength mix, also referred to as flowable fill material. The mix contains a high and stable mass of air that reduces the density and significantly improves the placing characteristics giving it self-compacting characteristics with no requirement for vibration. Because of the high air content foamed concrete has excellent insulation, sound-absorbing and fire resisting properties. Strength grades of between 1 – 10 N/mm2 can be achieved making this mix ideal in applications where future excavation may be necessary. A versatile material foamed concrete is ideally suited to fill voids where limited, difficult or unstable access is a problem such as disused vaults, sewers and pipe lines or for neutralising redundant petrol/diesel storage tanks.
Key Features & Benefits
- Ease of placement and finishing (particularly where access is limited)
- Self-compacting
- Cost effective compared with traditional trench fill methods
- Good thermal, sound and fire resisting characteristics
- Resistant to freeze / thaw damage
- Reduced weight compared with conventional concrete
Applications
- Neutralises and secures old fuel storage tanks
- Fills disused vaults, sewers, pipe lines, culverts and shafts
- Trench re-instatement
- Insulating sub-screeds
- Filling of temporary openings
- Filling of arches in bridges and viaducts