27 PCF
- Foam %
- 81.6% ± 2.5
- Typical 28-day
- ~107 psi
- Best for
- Lightest void fill / minimal lateral pressure
Celebrating America’s 250th Anniversary (1776–2026)
Greater Portland Metro
Mix designs
The four most popular cellular grout packets — 27, 33, 38, and 45 PCF — all generated from the same 108 PCF neat-cement base slurry. Only the foam rate changes. Tank and pipe decommissioning, foundation and abutment backfill, annular fill, and void fill.
All four use the same Base Slurry 108 PCF. Only the foam rate changes.
The lightest published Volume cellular fill — 27 PCF, about 82% foam, ~107 psi. Same 108 PCF neat-cement base slurry as the rest of the cellular family. Annular space, abandoned pipe, void fill, and low-pressure foundation backfill.
~107 psi (27 PCF) · N/A
Mid-light Volume cellular fill — 33 PCF, about 78% foam, ~145 psi. Same 108 PCF neat-cement base slurry as 27 / 38 / 45. Annular space, abandoned pipe, void fill, and foundation backfill.
~145 psi (33 PCF) · N/A
Lightweight annular-space, abandoned-pipe, and void fill. One packet covers both the 38 PCF cellular grout and the 108 PCF neat-cement base slurry used to generate it.
~180 psi (38 PCF) · N/A
The densest published Volume cellular fill — 45 PCF, about 69% foam, ~230 psi. Same 108 PCF neat-cement base slurry as 27 / 33 / 38. Annular space, abandoned pipe, void fill, and foundation backfill when the spec wants more unit weight.
~230 psi (45 PCF) · N/A
Optional more on the sister site: cellularbackfill.com. Delivered by Volume Concrete. Call Dispatch to schedule or price a load.