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Geotechnical polyurethane foam

Light Weight Fill Systems

Our Light Weight Fill Systems, formerly known as Strata-Fill, are a line of dual-component polyurethane foam grouts that are used for a variety of applications, such as void filling, pipe abandonment, trench breakers, and cavity filling. Each batch goes through stringent testing and quality assurance standards to ensure reliability in the field.

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How it WorksApplicationsDocumentsBenefitsPhysical PropertiesCase Studies

How Light Weight Fill Systems Work

Trained professionals design solutions using these systems in several ways. In all cases, the Light Weight Fill Systems line is a 1:1 ratio system that is most commonly installed using a dual-component proportioning system and an impingent gun. The systems are heated as they are processed through the proportioner to pre-determined temperatures in the range of 110° F - 140° F. While still in liquid form as the combined materials come out of the gun, they start to react to form a rigid solid polyurethane grout. The various systems in this line up have different reaction profiles and different densities. They are also available in both pour systems with long run times and a spray system that can be applied on vertical surfaces or used for trench breakers or pipe pillows.

Applications

The Light Weight Fill Systems polyurethane systems can fulfill a wide variety of geotechnical applications. They were specifically formulated for certain sectors and project types where large voids need to be filled with lightweight material. The spray system was designed initially for the Oil and Gas Industry to build Trench Breakers or Pipe Pillows, but has been used for so much more. Here are a few of the applications:

  • Void Filling
  • Cavity Filling
  • Seawall Repair
  • Culvert Repair
  • Dam and Levee Stabilization
  • Pipeline Trench Breakers, Pads, and Pillows
  • Pipe and Tank Abandonment
See All Geotechnical Applications

Find Light Weight Fill Systems Technical Documents

Technical Data Sheets

  • Light Weight Fill Systems 24-023 TDS
  • Light Weight Fill Systems 24-039 TDS
  • Light Weight Fill Systems 24-070 TDS

Benefits of Light Weight Fill Polyurethane

Environmentally Inert

Our Light Weight Fill products are environmentally inert; once installed they will not leach any chemicals into the soil or groundwater. Most of the systems in this line are available upon request as NSF-61 Certified material.

Hydrophobic/Hydro-Insensitive

Many of the Light Weight Fill Systems are hydrophobic or hydro-insensitive. This means that during installation, they will push water out of the way and not get diluted or affected by the presence of water.

Reactivity Ranges

Depending on your project's need, you may need faster or slower reactivity. The Light Weight Fill Systems line is able to fulfill your required time.

Highly Expansive

The Light Weight Fill Systems have a low density, offering excellent expansion.

Physical Properties of Light Weight Fill Systems

Physical Properties

Density (ASTM D1622)

Compressive Strength (ASTM D1621)

Tensile Strength (ASTM D1623)

Shear Strength (ASTM C273)

Light Weight Fill Systems 24-023

2.0-2.5 pcf

39 psi

51 psi

35 psi

Light Weight Fill Systems 24-039

2.2 pcf

35 psi

37 psi

37 psi

Light Weight Fill Systems 24-070

2.1 pcf

33 psi

55 psi

33 psi

*The above values are average values obtained from laboratory experiments and should serve only as guide lines.

NCFI is a Proud Member of the Following Associations

American Society of Civil Engineers

Center for Polyurethanes Industry

Grain Elevator and Processing Society

International Concrete Repair Institute

National Concrete Masonry Association

National Foundation Repair Association

About Us

NCFI has been a global leader in polyurethane foam production since 1964. Seeing the ever-growing applications of polyurethane in the geotechnical stabilization market, NCFI opened the geotechnical division in 2008 in order to provide better service and products to our customers and contractors. Our foam systems are an adaptable, no-excavation solution for meeting geotechnical engineering challenges.

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