Abstract: A layered material configured for assembly of a base mat containment system is provided. The layered material includes: a first layer affixed to a barrier layer, a second layer affixed to the barrier layer, the second layer including a plurality of peaks and valleys. The base mat includes a high-strength material. A method of fabrication and a base mat containment system are disclosed.

Abstract: A containment material for a containment system to provide protection against the diffusion of contaminants in a containment area. A structured felt geotextile surface layer is joined with a geomembrane barrier layer to form a lamination. The geomembrane barrier layer is substantially impervious to liquid diffusion. The structured felt geotextile surface layer comprises a needle-punched, non-woven felt with an upper surface structured to have a surface pattern of peaks and valleys. A containment system is formed from a plurality of strips of containment material joined by liquid-impervious bonds to provide coverage to the containment area. A process for forming a containment material comprises providing a structured felt geotextile layer formed with first and second needling operations to produce a surface pattern and a liquid impervious geomembrane barrier layer and joining the layers to form a lamination.

Abstract: A containment material for a containment system to provide protection against the diffusion of contaminants in a containment area. A structured felt geotextile surface layer is joined with a geomembrane barrier layer to form a lamination. The geomembrane barrier layer is substantially impervious to liquid diffusion. The structured felt geotextile surface layer comprises a needle-punched, non-woven felt with an upper surface structured to have a surface pattern of peaks and valleys. A containment system is formed from a plurality of strips of containment material joined by liquid-impervious bonds to provide coverage to the containment area. A process for forming a containment material comprises providing a structured felt geotextile layer formed with first and second needling operations to produce a surface pattern and a liquid impervious geomembrane barrier layer and joining the layers to form a lamination.

Abstract: A layered material configured for assembly of a base mat containment system is provided. The layered material includes: a first layer affixed to a barrier layer, a second layer affixed to the barrier layer, the second layer including a plurality of peaks and valleys. The base mat includes a high-strength material. A method of fabrication and a base mat containment system are disclosed.