Porofoam foamed concrete

The only low density concrete delivered ready to place with densities as low as 300kg/m3

Made with Cemex admixtures, Porofoam is available in a wide range of densities and compressive strengths to suit your project’s specific needs. It is easy to place, does not require compaction, and can be produced onsite using our foam generation units, or it can be delivered premixed in trucks.

Porofoam is the only low-density foamed concrete that is delivered ready to place at densities as low as 300kg/m3 removing the need for specialised equipment on site, especially when space and access is limited.

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Benefits

Benefits Of Foam Concrete

Lightweight Concrete

Pipelines, Service Ducts and Shafts, Sinkholes

Freeze / thaw resistant

High air content makes it resistant to freeze/thaw and provides good thermal and acoustic insulation.

Pumpable foamed concrete

Can be pumped significant distances and can be placed by conventional concrete pump or rotor stator ‘worm’ pump.

Benefits

Benefits Of Foam Concrete

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Self-compacting and self-levelling

Making it ideal for inaccessible trenches where compaction would be difficult or impossible. It allows for controlled discharge into narrow openings, fully fills void space, including undercut pockets and entirely surrounds and protects pipes.

Load spreading

Reduce the risk of subsidence.

Highly fluid

Making it easy to place and finish. thanks to a single process installation, simple pour and level. Controlled rates of placement to ensure suitability for any loading characteristics.

Insulating properties

Can be used as a low density insulating sub-screed.

Applications

Applications of foamed concrete

Foamed concrete is ideal for filling voids such as disused fuel tanks, sewer systems, pipelines and culverts – particularly where access is difficult.

Applications

Applications For Foam Concrete

Unwanted voids: Pipelines, Service Ducts and Shafts, Sinkholes

Disused structures: Culverts and Subways, Redundant Sewers, Cellars and Basements Higher

Structural stabilisation: Bridge Abutments, Tunnel Stabilisation, Embankments

Insulating Fill: Low density insulating sub-screed, Insulating fill to house over-sites

More Information About Foamed Concrete

Foamed concrete placement

Porofoam can be pumped, horizontally, vertically, or directly placed in layers of up to 1m single lift depth in order to maintain the required air void structure. The fluid nature of Porofoam allows the concrete to free flow into even the smallest of spaces making it highly suitable for voidfill applications. Porofoam can be pumped by either a conventional concrete pump or rotor stator pump. Porofoam also exhibits no settlement characteristics that may occur with granular fill materials allowing a much more stable fill.

We’ll work with you to find the right density and strength.

Our technical team will work with you to create a suitable mix design for your application. Porofoam can achieve strengths of up to 20N/mm2 and our unique production process allows us to produce an extremely wide range of dry densities from as low as 300kg/m3 up to 2000+kg/m3.

For strengths and densities outside of this range our team will work with you to provide a solution.

Call our Product Support Helpline for more information on 01926 818264 or request a quote

Porofoam Case Studies

Porofoam Stepney TBM Removal

60 Second Case Study

The Lee Tunnel Super Sewer project is designed to divert millions of tonnes of London sewerage away from ending up in the River Thames. As part of the project, contractor Barhale, working on behalf of their client Costain, were required to construct a tunnel which would connect the sewer network to an overflow shaft. The new tunnel would break into the overflow shaft approximately a metre above the base and therefore required an easily removable infill material to be able to safely remove the Tunnel Boring Machine Barhale contacted CEMEX to see if they could use Porofoam, our low density concrete, as the solution In order to hold the 150 tonne weight of the TBM, the material needed to achieve a minimum of 5N/mm2 compressive strength whilst maintaining a density low enough to allow the TBM to easily penetrate . CEMEX Technical team recommended Porofoam 900 as the optimum solution. As the TBM moved along the Beckton overflow tunnel, Porofoam was placed in the overflow shaft base to a depth sufficient to cover the boring machine ready for when it broke through. For this contract 360m3 of porofoam was supplied from our nearby Stepney Plant and delivered on trucks pre-mixed The TBM was finally extracted from the Beckton Overflow Shaft by breaking the surface Porofoam and lifted out by crane

Foamed Concrete - St Vincents Sheffield

60 Second Case Study

St Vincents Church in Sheffield has undergone a vital renovation turning it into a new student accommodation complex. The project required a mass filling of the existing basement with 20 N/mm2 concrete.

Watch the video for more information

Foamed Concrete - Bridge Span Infill

60 Second Case Study

Whilst undertaking a bridge replacement scheme in Ashton under Lyne, Murphy Group required a low density product suitable for mass voidfill. Working on behalf of their client, network rail, Murphy’s bricked up 2 spans of the bridge to create a chamber underneath, which was to be filled through holes on the bridge deck. This enabled demolition of part of the bridge, without taking lengthy possessions of the Railway line which was to continue to operate under one of the spans. When Murphy Group approached CEMEX for a suitable voidfill solution we proposed to use Porofoam, our lightweight foamed concrete product, which is designed specifically for each project by our UK Technical Department Porofoam is available in a range of densities and strengths and is manufactured using our proprietary CEMEX admixtures. The product can be mixed onsite by our foam production units or delivered in trucks premixed. For this project CEMEX delivered around 2000m3 of pre-mixed Porofoam over a 2 week period to meet the programmed demand.

Other Voidfill Products

Roadfill

Roadfill - An efficient and cost-effective reinstatement material that complies with the Roads and Streets Works Act 1991. Roadfill is available as FCR Classes C2 and C4. There is no settlement with so therefore it can be fully resurfaced in one operation. There is also no need for compaction equipment.

Applications:

Reinstatement of temporary opening in streets and highways,
Protection of buried services,
Road Pavement Reinstatements

Tankfill

Tankfill - The more cohesive property of Porofoam Tankfill allows a controlled discharge into tanks with a restricted entry point. Air and gases in the tank are gradually displaced by the foamed concrete . Being a cellular fill, Porofoam is less prone to penetration from external contaminants. Porofoam Tankfill meets the building regulation codes for fire resistance.

Applications: