Hydraulic Slope Stabilization Terminology
Engineered Fiber Matrix (EFM)
Engineered Fiber Matrix (EFM) is a hydraulically-applied slope stabilization matrix combining thermally refined wood or cellulosic fibers with cross-linking hydrocolloids to form a continuous 3D protective blanket on steep slope terrains (1:1+).
Physics & Chemistry Root Cause
Unlike standard wood/paper mulches, an EFM creates an immediate mechanical and chemical bond with soil particles, absorbing kinetic impact from heavy rain while maintaining high water-holding capacity for seed germination under ASTM D6459 and D7322 technical guidelines.
Job-Site Operator Action Plan
1
Verify Tank Agitator Speed Before Pouring
Set mechanical paddle agitator to low-to-medium speed (100–150 RPM). Never dump dry polymer into static or un-recirculated tank water.
2
Utilize Sifting Technique Across Recirculating Vortex
Pour powder steadily over 60–90 seconds across the recirculating stream. OHRA's engineered mineral particle spacers will physically isolate polymer grains during hydration.
3
Monitor Recirculation Pump Pressure
Ensure discharge pressure remains steady (40–60 PSI). If pressure fluctuates, engage full agitation for 2 minutes to break down any transient air pockets.
Equipment & Component Impact Matrix
| Component | Legacy Binder Impact | OHRA Polymer Performance |
|---|---|---|
| Recirculation Pump Impeller | Severe friction cavitation & seal wear | Acts as liquid mechanical lubricant |
| Turret Spray Nozzle | Frequent clogging from gel lumps | Eliminated fisheye lumping, continuous flow |
| Hose Pressure Head Loss | High friction resistance over 200ft+ hose | Smooth laminar flow reduction |