Nettles Cellular Concrete
Engineered Fill

Nettles Cellular Concrete Fill is one of the largest and most respected subcontractors and installers of
low-density cellular concrete (LDCC) and engineered fill (EF) in the country.
 
 
We work throughout Texas including the Houston, San Antonio, Dallas, Austin, Fort Worth, and Corpus Christi markets. We work throughout Oklahoma including the Oklahoma City, Tulsa, Norman, and Broken Arrow markets.
Nettles Cellular Concrete Fill is one of the largest and most respected subcontractors and installers of
low-density cellular concrete (LDCC) and engineered fill (EF) in the country.
 
 
We work throughout Texas including the Houston, San Antonio, Dallas, Austin, Fort Worth, and Corpus Christi markets. We work throughout Oklahoma including the Oklahoma City, Tulsa, Norman, and Broken Arrow markets.

Download the Guide to Cellular Concrete Engineered Fill

Download the guide to learn about the applications, key advantages, and how you can use Cellular Concrete on your next Engineered Fill project.

Using Low-Density Cellular Concrete (LDCC) for Engineered Fill (EF) Applications

Contact a Nettles Expert

Contact an expert at Nettles to learn more about our Cellular Concrete Engineered Fill.

Contact a Nettles Expert

Contact an expert at Nettles to learn more about our Cellular Concrete Engineered Fill.

Why Use
Low-Density
Cellular Concrete
(LDCC) Engineered
Flowable Fill

Quickly Fill Voids

No time to rework or finish adjacent surfaces? Need to save man hours and overall construction time?
The flexibility and lightweight material allows for the product to be placed in atypical perimeters without need for high manpower or lengthy
installation. The end product requires little to no maintenance and is easy to excavate.

 

APPLICATIONS: Tunnel/pipe annular fills and utility insulation fills. Abandoned Utility fills.

Soil Compressibility Issues

Some soil contains high organic material or soft clays that require compaction when using traditional Engineered Fill (EF) applications.
LDCC’s customizable mix designs allow load balancing that can be tailored to meet different densities and strengths as required for specific applications.

APPLICATIONS: Soil stabilization and unique-use design

Flood Prone Area & Settlement Issues

Traditional Engineered Fill (EF) applications have the risk of subsidence, erosion, or soil-instability. LDCC’s high strength to weight ratio provides low vertical and lateral forces and eliminates settlement and soil-instability issues. Resulting in a minimal load bearing option for increased elevation.

APPLICATIONS: Mechanically Stabilized Earth (MSE) and Reinforced Soil Slope (RSS) Wall Backfill and Landslip Repair

Tight Work Area

Cannot open the construction area for traditional concrete work? Physical restrictions or construction near inhabited or occupied dwellings.
Requires only small crew and can be pumped by small hoses for long distances even vertically if needed.


APPLICATIONS: Above parking garage plaza deck and elevated construction options.

Limited Project Duration

If you have a last minute need for an Engineered Fill (EF) application and need to compress your construction time, LDCC is an ideal solution. LDCC does not need compaction and can be quickly set up and pumped into location. No need for compaction. Workers do not need to be in the danger zone.

APPLICATIONS: Tight pipe trenches and pipe cribbing. Indoor trench fill where you cannot allow workers in trenches.

What Is Low-Density Cellular Concrete (LDCC) Engineered Fill?

Low-Density Cellular Concrete (LDCC), Cellular Concrete, or Controlled Low-Strength Material (CLSM) is a type of Engineered Fill (EF) that is a mixture of Portland Cement, water, and preformed foam. The foam creates a structure of discrete air cells within the concrete, increasing volume, reducing density, and improving flowability. Mix designs may use fly ash, sand, and other aggregates to achieve specific densities and strengths. These properties make Low-Density Cellular Concrete (LDCC) Engineered Fill ideal for a variety of geotechnical applications.

How Is Cellular Concrete Produced
and Placed?

Cellular Concrete or LDCC is produced on-site using a mobile batch plant and pumped into place. A slurry of cement and water is injected with preformed foam and can be pumped substantial distances making placement easier in confined and/or high-traffic areas. Daily production from mobile batch plants can exceed 2,000 CY/day and multiple batch plants can be utilized for high-volume jobs.

What Is Controlled Low-Strength Material (CLSM)?

Controlled Low-Strength Material (CLSM) is another common term for Low-Density Cellular Concrete (LDCC), Flowable Fill, or Engineered Flowable Fill. The abbreviation, CLSM is commonly used in design documents to indicate a low-strength and highly flowable concrete mixture that is used in a variety of engineered fill applications.

Slip Lined Pipe with LDCC Engineered Fill

Applications for
Low-Density Cellular Concrete (LDCC) Engineered Flowable Fill

Tunnel/Pipe Annular Fills and Utility Insulation & Fills

When new utility piping is tunneled underground or installed in a casing, the space around it must be grouted. LDCC is highly flowable, ensuring these annular spaces are completely filled. LDCC has a very low set temperature compared to traditional grout, which protects the new pipe from heat damage. Buoyant forces are also reduced during grouting, due to LDCC’s low-density.

Soil stabilization and unique use design

LDCC can be used to reduce overburden and evenly distribute loads over poor soils. Mix design can be specialized for specific location and geomaterial behavior.

MSE and RSS Wall Backfills

Mechanically Stabilized Earth (MSE) backfills and Reinforced Soil Slope (RSS) Wall backfills are an excellent application for LDCC. Cellular Concrete reduces lateral forces on adjacent structures. Once cured, LDCC does not exert lateral pressure and the material has very low permeability, reducing the lateral pressure associated with water intrusion. This makes LDCC an excellent backfill material for retaining walls and foundations.

Plaza Decks and Parking Garages

LDCC can be designed to meet load parameters and restrictions. Typically structurally supported plaza decks allow minimal loads which is why LDCC is the proper choice. Plaza decks can be complex and intricate. LDCC will eliminate stress both in design and construction.

Pipe Trenching Backfills and Shaft Backfills

LDCC is a quick and affordable solution for pipe trenching backfills and shaft backfills. Many use it as a permanent design feature, however due to its low-density, it can also be easily excavated for future maintenance and repairs.

We're Experts in Cellular Concrete, CLSM, and Engineered Flowable Fill

Nettles Construction Solutions is one of the largest and most respected subcontractors and installers of engineered fill (EF) and low-density cellular concrete (LDCC) in the country. We work throughout Texas including the Houston, San Antonio, Dallas, Austin, Fort Worth, and Corpus Christi markets. We work throughout Oklahoma including the Oklahoma City, Tulsa, Norman, and Broken Arrow markets. 

If you have an engineered fill (EF) or low-density cellular concrete (LDCC) project in Texas or Oklahoma and are looking for a subcontractor or installer, give us a call.

More Engineered Fill and Low-Density Cellular Concrete Resources

Have Questions about Cellular Concrete, CLSM, or Engineered Flowable Fill?​

Contact an expert at Nettles to learn more about our Cellular Concrete Engineered Fill.

For more information contact one of our engineered fill specialists:

Ron Contreras
Engineered Fill Sales