Ecofill

The lightweight fill for tight spots

Ecofil is the ideal lightweight concrete solution for rapid and workable application.  It’s an advanced polymer-based fill that is cost effective and eco-friendly, and is used as an alternative to traditional filling methods and concrete.

  • Easily pumped across long distances

  • Ecofil is highly flowable and stable

  • Self Levelling

  • Excavatable

  • Perfect for time-critical applications and for when site access is limited

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What is Ecofil?

What is Ecofil?

Ecofil is a structural fill produced by mixing cement slurry with stable, pre-formed hydrocarbon foam. This mix creates an air bubble filled cement product, making it a Controlled Low Strength Material (CLSM) ideal for use as a lightweight backfill or lightweight concrete fill.

The composition of Ecofil gives it great lift thickness, stability and flowability.

It’s also self-levelling, geotechnically very strong, and inexpensive.

ECOFIL CONCRETE REPLACES COARSE AGGREGATE WITH AIR.

The air cells must be resilient to withstand the rigours of mixing and pumping in various applications. Foam has the stability to be calculated as a solid but the properties to be placed as a low-density fluid material.

ECOFIL 25 IS FULLY EXCAVATABLE & VERSATILE.

What can it be used for?

Ecofil is suitable for a wide range of uses and applications, including but not limited to: 

  • Retaining walls and reinforced earth walls

  • Voids, tanks, sinkholes and abandoned mine shafts

  • Decommissioned pipes and tunnels

  • Service trenches

  • Manhole backfilling

  • Replacement for unstable soils

  • Landslip repair fills 

  • Load reducing fill over underground structures

  • Pervious sub-base

  • Freeway fence panels

  • Ecofil is a highly flowable material able to fill an annular space completely. The solution is lightweight and efficiently pumps long distances at low pressures. It will not float the pipes or damage the liner for slip lining, and its shrinkage is less than 0.3%. The strength and density can be customised to project requirements with quick and easy installation that is environmentally safe. Ecofil concrete has been pumped over 80 metres vertically and over 1,400 metres. It can accommodate any diameter pipe.

  • Ecofil concrete advantages include: reduce lateral load, ease of placement, increased lift heights, reduced schedule impact, allows for design flexibility and engineered permeability.

  • It allows for narrower trench and less disturbance to existing native material. Widths may be reduced to within 15 cm of utility. It provides enough space to place the concrete in the pipe haunch areas properly. Eliminates backfill compaction and fills all voids.

  • Ecofil concrete has many advantages for subgrade modification. It can reduce vertical dead loads, increase strength and stability with minimal weight, improve seismic stability, reduce settlement potential, increase bearing capacity and provide insulating benefits.

What are it’s benefits?

Environmental

The lowered cement content in Ecofil makes it an environmentally friendly alternative to traditional fill options. Minimal mobile plant movement also reduces the overall carbon footprint. Its composition is environmentally inert.

Cost-effective

A low-cost material that performs better than comparatively priced alternatives. The lowered cement content in Ecofil can give four times better value than traditional concrete and soil fills (depending on use).

OH&S

Using Ecofil reduces the machine and human interface, minimising health and safety risks.

Innovative

Can be produced in a range of densities to fit requirements, used in a diverse variety of environments, and applied to all kinds of fill situations.

Light

Can be up to one-fifth the weight of normal concrete, depending on the density required. Reduces strain on retaining walls, bridge approaches, and slip lanes. Gains strength over time without potentially overstressing sub-grade soil. Can withstand heavy vehicle pressure.

Technical Information

Technical information can be found in the downloadable product spec brochure.

Delivery Partner

Need help with the delivery and application?

Eifers are the experts in time-critical civil construction works, with a specialised focus on rapid deployment concrete technologies. We can produce the slurry required for Ecofil on the spot and all day with our fleet of volumetric Mobile Mixers.

We can produce 600 cubic metres of Ecofil in a 4-hour shift. We have the materials, machines and methodologies to enable you to get it done sooner using Ecofil.