Foam concrete is a lightweight, air-entrained concrete produced by incorporating specialised foam into the mix. This creates a material that is significantly lighter than traditional concrete, with good insulation qualities and excellent ease of placement.
At Sussex Ready Mix Concrete, we supply foam concrete for a variety of applications where lightweight fill, thermal performance, or reduced dead load is required — from trench backfill and void filling to sub-floor insulation and landscaping.
Whether for residential groundworks or specialised contractor tasks, foam concrete offers practical performance benefits with controlled delivery and mix design.
Foam concrete is created by introducing a stable, pre-formed foam into a cement slurry, replacing some of the solid aggregate content. The resulting material contains uniformly distributed air voids, giving it properties that include reduced density, improved thermal insulation, and good flow characteristics.
Depending on the application, density can be controlled to achieve a range of performance criteria.
Lightweight Material
The inclusion of air voids significantly reduces density, making foam concrete easier to handle and apply, especially in areas with load constraints.
Insulating Properties
The high proportion of air gives foam concrete improved thermal insulation compared to standard concrete, useful in sub-floor or landscaping applications.
Excellent Flow & Fill
Foam concrete flows easily into voids and irregular spaces, making it ideal for backfill, trench infill, and cavity filling without the need for vibration.
Reduced Dead Load
Because it’s lighter, foam concrete places less load on underlying structures, which can be important for sensitive foundations or structural designs.
Foam concrete is suitable for a range of applications, including:
Trench and utility backfill
Void filling beneath slabs or around services
Sub-floor infill and insulation layers
Landscaping and garden earthworks
Noise attenuation / acoustic infill
Temporary construction platforms
If you’re unsure whether foam concrete is appropriate for your use case, our team can assess your project requirements and recommend the best solution.
Our volumetric mixers allow us to produce foam concrete with the correct density and foam content on site, tailored to your project specification. We calculate and mix your foam concrete to ensure:
Consistent density throughout
Controlled flowability
Suitability for placement method
When placing a foam concrete order, let us know:
The required density range
The intended use
Any site access or placement challenges
We will prepare your foam mix accordingly.
Foam concrete behaves differently from traditional concrete, and correct placement helps achieve optimal performance:
Pour or pump directly into voids or backfill areas
Use guided delivery for deep trenches or restricted access
Coordinate with groundworks or services installation teams
Follow any engineer/structural details for sub-floor or insulation layers
Our delivery team can advise on placement requirements at the point of quote.
We supply foam concrete across:
Haywards Heath, Brighton, Worthing, East Grinstead, Lancing, Uckfield, Burgess Hill, and surrounding Sussex areas.
Whether you’re a contractor, groundworker, or specialist builder, we deliver mixes tailored to your schedule and access conditions.
If your project could benefit from lightweight, high-flow concrete with insulation or fill properties, contact us for expert advice and a competitive quote.
Sussex Ready Mix Concrete is your local trusted provider of high-quality concrete and screed. Enjoy fast delivery, with same or next-day options available across the region. Unsure if we cover your area? Quickly check our areas we cover page or give our friendly team a call.
Take a look where we deliver our ready mix concrete throughout East and West Sussex.
