Load reducing Engineered Fill over underground structures.
Void filling for abandoned underground and mining facilities, wells, tunnel shafts, or additional cavity fill.
Culvert Fill for Substandard Bridge Conversions
Backfill in or around engineering structures when this is more practical than using soils.
Fill to reduce hydrostatic pressure on retaining walls
Canal Distribution Systems [CDS] Flood Control Reconstruction and Land Reclamation
PERIMETER VEHICLE SUPPRESSION TRENCH SYSTEM
SECURITY BARRIER FOR THE MITIGATIONOF A BLAST THREAT
FROM VEHICLE [S] TARGET PENETRATION
ENGINEERED MATERIALS ARRESTING SYSTEMS [EMAS] OR SOFT GROUND ARRESTING SYSTEMS IS A LOW DENSITY - CONTROLLED LOW STRENGTH MATERIAL [LD-CLSM] CONSTRUCTED OF HIGH-STRENGTH ABSORBING MATERIALS OF ELECTED STRENGTH; IT IS PLACED AS AN ARRESTOR BED LOCATED IN AN ENCLOSED AREA AWAY FROM THE TARGETED AREA. THIS MATERIAL ALLOWS PEDESTRIAN ACCESS, HOWEVER, IS DESIGNED TO CRUSH UNDER THE WEIGHT OF A VEHICLE [S] TO TERMINATE OR SUSPEND ITS FORWARD MOTION AND RESTRICT ANY FURTHER ACCELERATION. PROTECTION FROM FIRST, SECOND AND THIRD BLAST REPETITION
STRUCTURE [A] IS EXPOSED TO AN ATTACK STRUCTURE [B] IS SECURED BY AN ENTRYCONTROLLED POINT [ECP] AREAAND A [EMAS] TRENCH BARRIER SYSTEM
Controlled Structural Fill
Application where substandard soil under a structure has failed and replaced with a structural fill
Structure is supported by a density and compressive strength specified by a structural engineer.
Thermal Fill for Aquifer Thermal Energy Storage [ATES]
and Borehole Thermal Energy Storage [BTES]
Specification considerations for a thermal fill application for 1.5 meter horizontal channel to be used with an Underground Thermal Energy Storage [UTES] sytem.
Sand/Gravel when added as loose fill ,will?
Thermal conductivity [k] is defined as the rate at which heat passes through a material of unit area and thickness when there is a unit temperature change between the two faces of the material. The higher the [k] value of a material, the inferior its insulation.
Water as rain or moisture from another source: [20º C] 0.6 W/mK at the highest temperature [summer] then changes to ice 1.6 W/mk during winter or coldest duration.
Concrete has a 0.8 W/mK value where Insulated Concrete is 0.15 W/mK.
Solution: a 481kg/m³ density fill will enhance the thermal properties of the piping in this channel during winter, improving energy efficiency transfer through the system.
*Precauton Water absorption is a great concern for a lightweight foamed concrete that has a density under 320 kg/m³ [20 lb/ft³]. Since 80% of the mix is air, this can make it very porous. This high degree of absorption can lead to a 50% percent loss of compressive strength after saturaton and additional significant deterioration in freeze and thaw cycle. Additional admixtures or protection can be specified to correct this problem.