GSE® Studliner® - HDPE Concrete Protection Liner

GSE® Studliner® is a high-density polyethylene (HDPE) concrete protection liner with integral extruded studs on one face. More than 1,200 studs per square metre anchor the sheet into concrete or grout. The smooth exposed face and welded joints provide a continuous protective barrier for new construction and rehabilitation.

Concrete protection liner applications include precast sewer pipes and manholes, cast-in-place wastewater tanks, industrial process structures, sumps and trenches. The HDPE sheet resists chemical attack and mechanical damage. Thickness, chemical compatibility, operating temperature, anchorage and joint details must be confirmed for each project. Available sheet thicknesses range from 2.0 to 5.0 mm, in black or grey, with rolls and prefabricated panels available.

Geosynthetics Africa is an authorised supplier of GSE products in Africa. We provide material supply and delivery, specialist installation and documented QA/QC for concrete protection lining projects. Our scope covers panel layouts, formwork coordination, thermal welding, penetrations, terminations, seam testing, repairs and handover records.

Technical notes: Values apply to the 2, 3, 4 and 5 mm grades. Tensile properties are measured in each direction using a Type IV dumbbell specimen and a 50.8 mm gauge length. ¹ Pull-out strength requires concrete compressive strength of at least 35 MPa. ² For near-spherical agglomerates, nine of ten views must be Category 1 or 2, with no more than one view in Category 3. *Modified test procedure. Roll dimensions are nominal.

Quality-control test frequency: Thickness is checked every fifth roll. Density, tensile properties, carbon black or pigment content, and carbon black dispersion are checked once per 9,290.3 m². Notched constant tensile load is checked once per formulation. Stud pull-out, thermal expansion, low-temperature brittleness, dimensional stability, water absorption and water vapour transmission are checked once per product.