⚙ Cellular Concrete Pipe Fill Simulation

650′ × 20″ Pipe | 75–80 pcf Slurry | Two-Phase Counterflow Method

● PHASE 1 — 3″ Bottom Column Traveling to Far End
PIPE FILL PROGRESS0.0%
Elapsed Time
0:00
MM:SS (sim time)
Time Remaining
3:02:12
to completion
Slurry Front
20.0 ft
from entry (Phase 1)
Pumped (Gross)
0.00 CY
of 60.72 CY total
Net in Pipe
0.00 CY
after washout
Washout Loss
0 gal
0.0 cf
Water Expelled
0 gal
from open end
Back Pressure
4.5 psi
at pump head
Pump Rate
9.0 cf/min
67.3 GPM · 1CY/3min
Density
77.5 pcf
vs water 62.4 pcf
Washout Factor
13.5%
at slurry-water interface
Fill Volume
0.0 cf
of 1,418.1 cf pipe
How it works: The slurry (77.5 pcf) is heavier than water (62.4 pcf). Phase 1: Injected 20′ down the slope via 3″ hose, the slurry flows as a thin 3″ invert column along the pipe bottom — traveling the full 650′ to the far end in ~14.8 min while water counter-flows above it back to the open entry end. Phase 2: Slurry stacks from the far end back toward entry as water is continuously expelled. Washout (13.5%) occurs at the advancing slurry-water interface. Total gross to pump: 60.72 CY over ~3 hours.