Cellular concrete / cellular grout
Preformed foam plus cement slurry, made with volumetric trucks and mobile silos. The lightest mix starts at 27 pcf; we dial density up when the engineer specifies it. Tank and pipe decommissioning, void fill, foundation or abutment backfill, and slip-liner grouting. We travel anywhere in the Pacific Northwest. Delivered by Volume Concrete LLC; home base is Estacada.
What it is
Cellular concrete — also called cellular grout — is a cementitious mix with a foamed cellular structure. It is placed as a fluid, then sets in place. The primary spec is cast density at placement, in pounds per cubic foot.
A neat Type IL cement slurry (the featured carrier is about ~108 pcf) is expanded with preformed foam from Aerix Industries AERLITE / AERLITE-iX. Sand is optional. Permeable and non-permeable mixes are both available. The lightest mix starts at 27 pcf; we adjust density upward — up to about 100 pcf — when the engineer specifies it.
Volume Concrete makes the mix with volumetric trucks and mobile silos. That is on-site / mobile production — not plant-batched only.
This is not everyday heavy CLSM. Conventional flowable fill is still a relatively heavy cementitious fill. Cellular grout is foamed down to a specified low density so the fill stays light and pumpable.
It is also not polyurethane foam fill. PU foam is a polymer. Cellular Backfill is a cementitious grout that sets like concrete at the density you call out.
Applications
Tank and pipe decommissioning, void fill, foundation backfill, and abutment work. Slip-liner / annular grouting is a common related placement.
Abandon tanks, cisterns, vaults, and underground pipe (sewer, water, storm) with a flowable cellular grout that occupies irregular interiors.
Place lightweight flowable fill into voids and abandoned structures where conventional compaction is impractical.
Backfill up to concrete foundations where low density and flowable placement help reduce lateral load on walls after the grout sets.
Place lightweight fill at abutments and similar structures to reduce load compared with conventional soil backfill. Specify cast density to match the design.
Grout annular space around slip liners and similar underground work. The featured ~38 pcf mix is a non-permeating grout used for this application.
Job photos
Recent work: volumetric mixers, pumps, pipe fill, and foundation pours. No client names — these are the jobs, as they looked.
See it placed
Clips of on-site placement — a muted reel from Volume Concrete jobs. Use controls to play; sound is off.
Specs & options
The lightest mix is 27 pcf. Density is adjusted upward when the engineer calls it out — up to about 100 pcf. The ~38 pcf cellular grout is a common mid-range example; typical strengths on that mix are approximate, not a universal guarantee.
Lightest mix
27pcf
Dial denser when the engineer specifies it, up to about 100 pcf.
Mid-range example mix
A common job mix — not the lightest. Non-permeating cellular grout for slip liner / underground pipe decommissioning, void filling, and backfill. Includes fine aggregate (sand).
Strengths are typical maturity from the mix packet — approximate, not a guarantee of in-place performance. Final density and strength depend on foam generation and placement.
How it is made
Neat cement slurry used as the carrier before foam expansion. Type IL cement and foam from Aerix Industries AERLITE / AERLITE-iX expand that carrier to the specified cast density at placement. The mix is made with volumetric trucks and mobile silos.
Cast density
From 27 pcf
Lightest mix is 27 pcf. Dial denser when the engineer specifies it, up to about 100 pcf. The ~38 pcf mix is a common mid-range example, not the lightest option.
Sand in mix
Available
Sand can be included. The featured ~38 pcf grout uses fine aggregate (sand) from Estacada.
Permeability
Both available
Permeable and non-permeable options are available. The featured ~38 pcf grout is non-permeating.
Density explorer
Move the slider to read approximate Aerix chart values. This is a manufacturer reference, not a Volume Concrete mix ticket or a guarantee.
38pcf
Aerix neat cement chart: 20–60 pcf. Volume’s lightest production mix starts at 27 pcf.
Why cellular
Use cellular concrete when the job needs a fill that starts light — 27 pcf — and can be dialed denser if the engineer specifies it. These are material characteristics, not a substitute for project engineering.
We start at 27 pcf — far below conventional soil or heavy flowable fill — and go denser only when the engineer specifies it. That low unit weight can reduce load on structures and soils.
The mix is placed as a fluid. It can be pumped into tanks, pipe interiors, annular space, and other tight access where dump-and-compact fill will not go.
Flowable placement occupies irregular voids without mechanical compaction the way soil fill requires.
Once the grout sets, the low unit weight can reduce lateral load on foundation walls compared with conventional backfill. Confirm design values with the project engineer. This is not a waterproofing claim.
Volume calculators
Pipe abandonment, annular grouting, and tank fill — live as you type. These are geometric estimates only. Confirm project dimensions, then call for mix and delivery.
Typical overage is 5–10%. Default is 5%.
Area = π × (ID ÷ 2)². Volume = area × length. yd³ = ft³ ÷ 27.
Service area
Volume Concrete LLC produces Cellular Backfill on-site with volumetric trucks and mobile silos. Everyday ready-mix lives in Greater Portland Metro. Cellular grout travels farther — anywhere in the Pacific Northwest. Home base is Estacada, Oregon.
Named cities are the Greater Portland Metro list contractors already search — Portland, Gresham, Oregon City, Vancouver WA, Beaverton, Hillsboro, Estacada, Sandy, and the rest of the Volume zone. That is not a cap on cellular work. Full service area, hours, and billing NAP.
Volumetric mixer on site — mobile production
Delivered by
Volume Concrete LLC
Ready-mix company. Home base Estacada, Oregon. Everyday ready-mix zone is Greater Portland Metro; cellular jobs travel the Pacific Northwest.
FAQ
Short answers we give contractors and engineers before a pour. Call if the spec or the jobsite is unusual.
Cellular concrete — also called cellular grout or lightweight cellular concrete (LDCC) — is a cementitious mix with a foamed cell structure. Volume Concrete makes it as preformed foam plus a Type IL cement slurry. It places as a fluid, then sets in place. The spec you call out is cast density at placement, in pounds per cubic foot. It is not polyurethane foam fill.
The lightest Cellular Backfill mix starts at 27 pcf. We dial density up when the engineer specifies it, typically up to about 100 pcf. A common mid-range job mix is about 38 pcf. Strength follows the mix design — typical packet values for that ~38 pcf example are approximate, not a guarantee.
Home base is Estacada, Oregon (city-level — we do not publish a plant street). Billing and postal mail go to 4230 SE King Rd. #211, Milwaukie, OR 97222. Volume Concrete’s everyday ready-mix zone is Greater Portland Metro. Cellular jobs travel farther: we take volumetric trucks and mobile silos anywhere in the Pacific Northwest — Oregon, Washington, and Idaho. Call (971) 219-8604 to confirm the jobsite.
Call dispatch at (971) 219-8604. That is the fastest path. Have cast density, permeable or not, volume, and access ready if you know them. You can also email billing@volumeconcrete.com or use the quote form on this site. Hours: Mon–Fri 7:00 AM – 5:00 PM · Sat 7:00 AM – 2:00 PM · Closed Sunday.
Both are available. Permeable cellular grout is designed so water can move through the set mass. Non-permeable (non-permeating) mixes are used when the fill should not act as a drain path — a common callout for slip-liner and pipe decommissioning. The engineer specifies which one. Sand is optional on either.
Conventional CLSM / flowable fill is still a relatively heavy cementitious fill. Cellular grout is foamed down to a specified low density so it stays light and pumpable — starting at 27 pcf instead of soil-like unit weights. It is cementitious, not a polymer foam. Confirm design values with the project engineer; this is not a waterproofing claim.
Request a quote
The fastest path is a phone call. Have cast density, permeable or not, volume, access, and the jobsite city ready if you know them.
Primary contact
(971) 219-8604Volume Concrete LLC · Estacada, Oregon
Billing / postal address4230 SE King Rd. #211, Milwaukie, OR 97222
HoursMon–Fri 7:00 AM – 5:00 PM
Sat 7:00 AM – 2:00 PM
Closed Sunday
Home baseEstacada, Oregon — city only; cellular jobs travel anywhere in the Pacific Northwest.
Secondary: volumeconcrete.com