Drainage and filtration layers are used in civil applications to remove moisture or fine particles from the system, providing a widely accepted, effective and economic alternative to traditional aggregate & sand filtration layers.

The primary design requirement of a filtration layer for civil engineering applications is the development of a graded filter layer in the subgrade soil to maintain separation and eliminate the risk of soil mixing or 'pumping'.

EGYPTEX Geotextiles promote development of such filter layers because its uniquely bonded fibers create a pathway that resembles a well-graded aggregate filter.

EGYPTEX Geotextiles provide an effective filter structure since it has both higher permeability rates than adjacent construction soils and the ability to retain fine soil particles, minimizing the piping of subgrade soils.

EGYPTEX Geotextiles will provide the designed flow rates under compaction eliminating any irregularity of performance when compaction in the field and preventing future clogging and costly project damage.