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Cellular Concrete

Low Density and Lightweight Cellular Concrete (LDCC)

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We offer an extensive library of mix designs to meet most project specifications. Flashfill can also engineer custom mix options to adhere to unique project details. 

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Cellular concrete (LDCC) is highly flowable and can be produced and pumped long distances at rates exceeding 150 cubic yards per hour. This reduces vertical loads with sufficient strength yet minimal weight. 

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It also improves seismic stability, increases bearing capacity, self leveling/compacting, and provides maximum insulation.

About LDCC

LDCC is a mixture of Portland cement and water slurry, combined with preformed foam to create air voids that act as a strong, lightweight, durable, and inexpensive alternative to soil or fill replacement for geotechnical applications.

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Benefits of ldcc

The four primary benefits of LDCC for geotechnical applications are as follows:

1

Significantly lighter in weight than soil

2

Highly flowable and able to fill spaces of any size or shape

3

Often less expensive than many alternative systems

4

Can accelerate construction schedules

About LDCC

The lightweight property of LDCC reduces ground settlement and improves bearing capacity. LDCC offers static and seismic stability of embankments when used as a lightweight fill placed on top of soft, compressible soils. 

 

Given that an LDCC mix is highly flowable (even over long distances), it can be efficiently and safely placed in confined or problematic spaces such as in pipes, trenches, tunnels, wall backfills, and other areas where the routine placement of compacted earthen fill is difficult, if not impossible. These attributes make LDCC a low-cost solution for many geotechnical applications.

 

The rapid placement and reasonably fast setting time of LDCC expedite construction operations. Many other attributes of LDCC provide additional advantages for specific challenges, including the following:​

Aggregate Conservation

Insulation

Freeze-thaw Resistance

Self-leveling and consolidating

Energy dissipation and damping

Density, strength and permeability control

Easily excavated

Inert/non-flammable

Local Availability

Ease of Pumping

Dynamic Properties

Reduced transportation costs and emissions

Increased Worker Safety

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The displacement of soft compressible soil is generally due to excessive loads applied to these soils. LDCC can be utilized as a full or partial replacement for the subbase layer in these applications to produce a zero or low net load increase to the foundation soil.

We provide a diversified line of controlled low strength material and lightweight/low-density cellular concrete for the following application examples.

  • Annular Space Fill

  • Utility Trench Backfill

  • Pipe Abandonment

  • Mining Applications

  • Bridge Abutments

  • MSE Wall Backfill

  • Subbase stabilization

  • Sink hole/void backfill

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