Geofill LD Hybrid is a low density concrete mix that contains aggregates and, while heavier than water, is still significantly lighter than regular concrete, grouts or soil. Densities and strengths can be formulated to match individual project needs.
Density by Design
Wet Density
lb/cu. ft.3
Dry Density
lb/cu. ft.3
Compressive Strength Ranges
PSI
70
65
50-400
80
75
75-650
90
85
100-1,200
100
95
100-1,800
110
105
100-3,000
Geofill LD Hybrid Material Characteristics
Low Density – Although heavier than water, this material is significantly lighter than traditional backfill material. Excellent for load reduction applications.
Pumpable – Special formulas make this a very pumpable material. Geofill LD Hybrid is an excellent choice for placement in abandoned pipes or other areas where dewatering is not possible. Anti-washout formulas even allow placement directly under water.
Compaction – No compaction is necessary. Use this product when future settlement cannot be tolerated.
Flowable – Self-leveling and will flow into and fill any void.
Lower Northwest Interceptor Sacramento, CA
Annular Space Grouting
This project consisted of a 19-mile sewage conveyance pipeline and pump station system that required micro-tunneling methods to install the new lines anywhere pipe could not be installed in an open-cut trench, such as under the Sacramento River or I-80.
The micro-tunneling operation was completed by filling the annular space around the pipe with Geofill LD cellular concrete to prevent corrosion and movement. This flowable material also reduced potential flotation or collapse of the carrier pipe.
