Waterproof and Water-saving Materials Testing

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Geosynthetic Material Testing

The application of geosynthetics started relatively late in China but has developed rapidly. Currently, the usage of geosynthetics in road construction is very high. High-performance geosynthetics are also widely used in coastal protection works such as seawalls, embankments, and land reclamation. Domestic projects including landfills, wastewater treatment, tailings treatment, and coal ash storage sites also require large quantities of high-performance composite geosynthetics to provide functions such as waterproofing and protection. Furthermore, significant investments in environmental projects like landscaping, ecological garden construction, “Sponge City” development, and ecological slope protection have further promoted the development and application of geosynthetics.

As an experienced third-party testing institution, we hold CMA and CNAS qualifications. Our test reports possess legal force and are internationally recognized. The company is equipped with advanced testing instruments and has cultivated a team of experts to ensure accurate and reliable test data. We provide customized testing services based on product characteristics and engineering needs, as well as value-added services such as technical consulting.

Testing Products

Drainage Boards

Geonets

Geosynthetic Clay Liners (GCLs)

Geotextiles

Geomembranes

Geogrids

Geocells

Drilling Fluid Materials

Testing Items

Dimple / Core Height

Roughness Height (Friction surface)

Tensile Force / Strength

Elongation at Break

Tensile Yield Strength

Yield Elongation

Wide-Width Tensile Strength (Strip pull strength)

Tear Strength (Trapezoidal / Elmendorf)

Compressive Properties (Compression resistance)

Low Temperature Flexibility

Low Temperature Impact Brittleness

Dimensional Stability

Heat Aging Resistance

Longitudinal Drainage Capacity (Flow rate)

Puncture Resistance

CBR (California Bearing Ratio) Puncture Resistance / Burst Strength

Carbon Black Content

Carbon Black Dispersion

Oxidation Induction Time (OIT)

Stress Cracking Resistance

Swell Index

Fluid Loss (Filtration loss)

Durability (Long-term / Accelerated aging)

Bentonite Identification / Purity

Peel Strength (Layer adhesion)

Tensile Properties (General)

Resistance to Hydrostatic Pressure

Heat Aging (duplicate, related)

Antioxidant Properties

Acid and Alkali Resistance

UV Resistance / Weathering Resistance (Xenon arc / Fluorescent UV)

Seam Strength (Peel, Shear)

In-Plane Water Flow Rate / Transmissivity

Longitudinal (In-Plane) Water Flow Rate / Transmissivity

Percent Open Area (POA)

Vertical Permeability (Under no load / Normal load)

Apparent Opening Size (AOS) / Filtration Opening Size

Freeze-Thaw Resistance

Tensile Strength of Welded Seams

Falling Dart Impact Resistance

Rheological Properties of Suspension (Viscosity)

Fluid Loss of Suspension

Testing Standards

Drainage Boards

Polystyrene protective drainage board, plastic protective drainage board

JC/T 2289, JC/T 2112

Geonets

Geonet mats, geocomposite drainage net for landfills, plastic geonet, drainage and protection mat

CJ/T 436, CJ/T 452, GB/T 19470, GB/T 40441

Geosynthetic Clay Liners (GCLs)

Natural sodium bentonite geosynthetic clay liner, sodium bentonite waterproof blanket, natural sodium bentonite waterproof blanket for rail transit engineering

JC/T 2054, JG/T 193, GB/T 35470

Geotextiles

Needle-punched nonwoven geotextiles (staple fiber, continuous filament), woven geotextiles (continuous filament yarn, slit-film yarn), geotextiles for railway engineering

GB/T 17638, GB/T 17639, GB/T 17640, GB/T 17641, Q/CR 549.5

Geomembranes

Nonwoven composite geomembranes, polyethylene geomembranes, HDPE geomembranes for landfills, LDPE geomembranes for landfills

GB/T 17642, GB/T 17643, CJ/T 234, CJ/T 276

Geogrids

Plastic geogrids, fiberglass geogrids, steel-plastic composite geogrids

GB/T 17689, GB/T 21825, JT/T 925.1

Geocells

Plastic geocells

GB/T 19274

Drilling Fluid Materials

Drilling fluid materials (e.g., bentonite, polymers for slurry walls/boring)

GB/T 5005 (or API Spec 13A)

Service Advantages

Over 40 years of deep industry experience, with a professional testing team and highly competent personnel ensuring accurate and reliable test results.

Comprehensive testing equipment, with capabilities covering nearly 300 parameters related to geosynthetic acceptance.

Based on extensive industry familiarity, we provide customized testing services according to product characteristics and project needs, as well as technical services based on test results.