Flowable Fill

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As an alternative to using concrete, DMV Concrete can also use flowable fill as a backfill. Flowable fill is a controlled low-strength material made of cement, water, sand, and typically an air-entraining admixture. This versatile "liquid soil" is used as a flowable liquid, yet it hardens and rapidly develops excellent load-bearing properties. Because it flows into place, flowable fill requires no compaction. Its viscosity and strength can be altered to meet the needs of any backfill projects, and its fluidity allows it to flow long distances to even the hardest places to reach. But that’s not all it can do…

We can also use Flowable Fill as backfill for:

  • Building Excavation
  • Bridge Abutments
  • Road Base
  • Utility Trenches
  • Surface Prep for Concrete overlays
  • Sub Footing
  • Floor Slab Base
  • Pipe Bedding

flowable fill 2 dmv

Flowable Fill can lower your cost because it flows into place and settles on its own. It reduces the cost of manpower and equipment. While traditional compacted fill requires two laborers for placement and two laborers for compaction, flowable fill requires only one laborer for placement and no compaction. Using flowable fill also eliminates the need for conventional backfilling equipment such as compactors and backhoes.

In addition to cutting costs, flowable fill will help you avoid the headaches caused by traditional backfill materials while speeding up construction:

  • Flowable fill is easily conveyed by pump, chutes or buckets.
  • It has controllable set times and allows the job to be completed faster.
  • It can be placed underwater, so in some cases trenches that contain water or moisture may not have to be pumped before flowable fill is installed.
  • It eliminates the site crowding that comes with storing backfill materials on-site.
  • It can be color-coded for utility identification.
  • When the time comes to remove entrenched pipes or utility lines, some flowable fill mixes can be excavated with a shovel or pick.

Before a concrete overlay (called whitetopping) is poured, cracks in the existing asphalt should be filled with flowable fill that easily flows into cracks and crevices. This is an inexpensive way to avoid mirror cracking, which occurs when cracks form in the whitetopping in the same places where there are cracks in the asphalt.

Call DMV Concrete for your flowable fill needs on your next project. We offer this option for our customers in the metro area including: Washington DC, Fairfax Va, Arlington Va, Alexandria Va and the surrounding areas, including Maryland suburbs around the beltway.