Flowable Fill

Flowable Fill is a self- leveling, self compacted, low strength cementious material used primarily for backfill in place of compacted soils

Because of the product’s self leveling consistency, placing in lifts, tampering or compacting is not required. Flowable fill’s pix of Portland cement, fly ash or slag and sand can be designed to provide strengths ranging from 50 psi (7600 psf) to be over 1000 psi.

Chemical admixtures may also be used in flowable fill to modify performance properties of strength, flow, set and permeability. In addition, stable air generators can be used to improve flexibility, lower densities/ unit weights, reduce shrinkage, bleed water and subsidence, and control strength development in applications where future excavation is required.

Benefits	Where is it used?	Order Types
Reduced construction time Reduced equipment, labor & maintenance costs Increased worker safety Onsite compaction testing not required Positive uniform density Minimizes settlement Easy to place & to remove Place in any type of weather	Backfill Trenches- Sewer, Utility, Conduit Building Excavations Bridge Abutments Structural Backfill Road Base Mud Jacking Sub Footing Floor Slab Base Pipe Bedding Other Uses Underground Storage Tanks Slope Stabilization Soil Erosion Control Mud Mats Abandoned Utilites	All-purpose: for general use in place of compacted fill Fast set: for projects where fast densification is essential DOT Mix: designed for Department specifications Pump Mix: designed to be pumped (must know hose diameter & pump distance) Colored Mix: color coded in order to mark underground utilities

Benefits

Where is it used?

Order Types

Reduced construction time
Reduced equipment, labor & maintenance costs
Increased worker safety
Onsite compaction testing not required
Positive uniform density
Minimizes settlement
Easy to place & to remove
Place in any type of weather

Backfill

Trenches- Sewer, Utility, Conduit
Building Excavations
Bridge Abutments Structural Backfill
Road Base
Mud Jacking
Sub Footing
Floor Slab Base
Pipe Bedding

Other Uses

Underground Storage Tanks
Slope Stabilization
Soil Erosion Control
Mud Mats
Abandoned Utilites

All-purpose: for general use in place of compacted fill
Fast set: for projects where fast densification is essential
DOT Mix: designed for Department specifications
Pump Mix: designed to be pumped (must know hose diameter & pump distance)
Colored Mix: color coded in order to mark underground utilities

Flowable Fill Mix Designs

The chart below includes suggested mix guides for excavatable and non excavatable flowable fill

Excavatable	Non-Excavatable

Buoyancy Force

(Pounds Per Linear Feet of Culvert)

Pipe Diameter (Ft)

Depth of Fill