Flowable Fill and Cellular Grout

What is flowable fill?

Also called lightweight cellular concrete, cellular grout, low-density cellular concrete (LDCC), or controlled low-strength material (CLSM), engineered flowable fill 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 cellular grout ideal for a variety of geotechnical applications.

Applications of flowable fill

Cellular Grout’s strength, low density and extreme flowability make it an ideal solution for a variety of applications, especially for projects with soil compressibility issues, flood prone areas or tight work areas. Nettles uses cellular grout for tunnel/pipe annular fills and utility fills, soil stabilization and load reduction mitigation, MSE and RSS retaining wall backfills, plaza decks and parking garages, pipe trenching, roadway bases, underground fuel tank fills, insulation and isolation barriers and more.

Nettles has been installing cellular grout and CLSM for over 40 years

Why choose Nettles?

Nettles Construction Solutions is one of the largest and most well-respected contractors and installers of cellular grout and LDCC in the country. We have decades of experience with CLSM and pride ourselves on our best-in-class service.

Our teams are experts in mix designs, working with different materials, and pumping the material correctly and precisely.

Nettles Engineered Fill Install #2

Download the guide to cellular concrete engineered fill

Download the guide to learn about the applications and key advantages of flowable fill, and how you can use it for your next project.

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