Geosynthetics

Specialists in Geomembrane, Geosynthetic and Geotextile materials – providing failure analysis, condition monitoring, accelerated testing, immersion testing and more.

Geomembranes, geosynthetics and geotextiles are materials are integral to environmental protection and engineering projects, offering versatile solutions for a wide range of applications.

Geomembranes are impermeable barrier materials used to control fluid migration in various civil and environmental engineering projects. Whether lining landfills, ponds, or reservoirs, geomembranes provide reliable containment and protection against leakage, contamination, and environmental hazards.

Geosynthetics encompass a broader category of materials designed to enhance soil stability, drainage, filtration, and erosion control in construction and infrastructure projects. From geogrids and geocomposites to geonets and geocells, these engineered materials offer cost-effective and sustainable solutions for improving the performance and longevity of civil engineering structures.

Geotextiles are lightweight, permeable fabrics used in a variety of civil engineering, transportation, and environmental applications. Whether reinforcing soil, separating different soil layers, or providing filtration and drainage, geotextiles play a vital role in enhancing the durability, efficiency, and sustainability of infrastructure projects.

ExcelPlas provides a full range of testing into geomembranes, geosynthetics and geotextile materials, and accelerated testing/immersion testing for lifetime prediction and durability assessment in a given environment. Examples of some of the standard testing is provided below: 

Type of Test/Properties Measured Standard Specification
Tensile Properties of Geomembranes ASTM D 6693
Geomembrane Field Weld Integrity ASTM D 6392
Tear Strength ASTM D 1004
Core Thickness of Textured Geomembranes ASTM D 5994
Density ASTM D 792
Carbon Black Content ASTM D 1603
Determination of Integrity of Nonreinforced Geomembrane Seams ASTM D 4437
Puncture Resistance ASTM D 4833
Thickness ASTM D 5199
Core Thickness ASTM D 5994
Asperity Height ASTM D 7466
Oxidative Induction Time ASTM D 3895
Oxidative Induction Time ISO 11357-6
High Pressure Oxidative Induction Time ASTM D 5885
Melt Flow Rate ASTM D 1238
Carbon Black Content ASTM D 4218
Carbon Black Dispersion ASTM D 5596
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Our expert team has completed over 13,000 rigorous polymer tests for clients across industries, all over the world.

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