Cellular Grout 33 PCF + Base Slurry 108 PCF
~145 psi (33 PCF) · N/A · Cellular grout / annular fill
Celebrating America’s 250th Anniversary (1776–2026)
When to use
Usual start for pipe abandonment. 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.
Most pipe abandonment starts at 27 or 33 PCF. Use 38 or 45 PCF only when the engineer specifies higher strength or density. Size the fill with the Pipe Abandonment Calculator.
Key specs
- Cellular grout 33.0 PCF — approximately 145 psi
- Foam 77.5% ± 2.5 by volume
- Base slurry 108 PCF neat cement (unchanged)
- Cement 325 / water 211 / sand 346 lbs per yd³
- 28-day psi scaled from 180 × (density/38.2)^1.5
- Aerix foam · Type IL Ash Grove Durkee · Estacada sand
- Annular space / abandoned pipe / void fill — not structural concrete
Optional more on the sister site: cellularbackfill.com. Delivered by Volume Concrete. Call Dispatch to schedule or price a load.