2021.10.28
Expanded polystyrene (EPS) geofoam is an ultra-lightweight yet rigid engineered material with high compressive strengths and predictable yield characteristics. It considerably reduces vertical and horizontal loading when used around utilities or buried pipework. It particularly provides pipeline security in seismic zones and can avoid costly relocation or upgrading of existing utilities.
EPS geofoam is 100 times lighter than soil with well-defined compressibility characteristics. When placed above a culvert, pipeline or utility supply it can provide a ‘compressive soft zone’. This creates a positive ‘arching’ effect which significantly reduces the vertical loading of the surrounding earth.
When used under concrete structures, it can also absorb upward strain from the expansive forces of a clay-based soil or freezing conditions. Easy to shape around networks of existing pipelines, it reduces both horizontal and vertical loading of the new construction.
Advantages of using EPS geofoam in a project that involves buried pipework:
•Can allow existing utilities to stay in place-saving significant time and money.
•Can eliminate the need to replace existing utilities as long as vertical loading is reduced.
•Can create any shape required – pre-cut before site delivery with additional onsite changes done with minimal equipment.
•Lightweight EPS blocks are easy to move and store around site; minimal disturbance in sensitive or restricted locations.
•Improves seismic resiliency of the pipeline or utility
•Provides high thermal insulation
•Provides vibration damping properties
Used as pipe protection for both internal and external construction.
•Used globally for many years with proven success.
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