Geosynthetic Testing Equipment

WDW Microcomputer-Controlled Geotextile Comprehensive Strength Testing Machine

Scope of application: Primarily used for the testing and analytical research of mechanical properties—such as tensile, compressive, and flexural behavior—of various geosynthetic materials as well as metallic and non-metallic materials.

DSC-600 Differential Scanning Calorimeter

Differential scanning calorimetry serves both as a routine quality‑control tool and as a research instrument.

LBT-3500A Carbon Black Content Analyzer

The carbon black content tester is suitable for determining the carbon black content in polyethylene, polypropylene, polybutene plastics, as well as in insulation and sheathing materials for cables and optical fibers, and in rubber.

LBT-13761 Multilayer Geotextile Thickness Gauge

It is used to determine the single-layer thickness of multilayer geotextiles without mechanically separating the individual layers of a multilayer specimen. Under specified pressure, the thickness of each individual layer is measured; prior to testing, the average total thickness of the multilayer product must be determined in accordance with the requirements of GB/T 13761.

LBT-610 Geomembrane Weld Air Pressure Testing Needle

The geomembrane weld air-pressure testing needle is used for inspecting geomembrane welds, employing an inflation‑pressure method that is simple and easy to use. It is suitable for dual‑seam inspection of geomembranes, waterproof membranes, and impermeable liners.

Geogrid Welding Joint Ultimate Peel Strength Fixture

The geogrid weld‑point ultimate peel‑force fixture is used to determine the ultimate peel force of adhesive‑welded geogrid weld points or other welded joints in geosynthetic materials, in accordance with the test requirements specified in JTG 3460‑2026, “Test Procedures for Geosynthetics in Highway Engineering.”

LBT-1121 Geosynthetic Wide-Strip Tensile Test Fixture (New Standard)

It is used to determine the tensile properties of geosynthetic materials and is suitable for mesh‑type geosynthetics as well as sheet‑type geosynthetics other than geomembranes, including geonets, geogrids, and geotextiles.

LBT-1122 Geosynthetic Material Joint and Seam Wide-Strip Tensile Test Fixture (New Standard)

This fixture is used to determine the tensile properties of geosynthetic joints and seams, and is suitable for mesh‑type geosynthetics as well as sheet‑type geosynthetics other than geomembranes, including geotextiles, geosynthetic composites, geogrids, and others, in accordance with the “Test Procedures for Geosynthetics in Highway Engineering,” JTG 3460‑2026.

LBT-1123 Geosynthetic Narrow-Strip Tensile Test Fixture (New Standard)

It is used to determine the tensile properties of geosynthetic materials and is suitable for geotextiles, geogrids, geobands, and geocomposites, among other related products.

LBT-1124 Geosynthetic Bond‑Point Ultimate Peel‑Force Test Fixture (New Standard)

It is used to determine the ultimate peel strength of bonded welds in geogrids or other bonded joints in geosynthetic materials, in accordance with the test requirements specified in the “Test Procedures for Geosynthetics in Highway Engineering,” JTG 3460-2026.

LBT-1125 Geotextile Trapezoidal Tear Strength Testing Fixture (New Standard)

The geotextile trapezoidal tear strength test fixture is designed to determine the tear strength of geosynthetic materials using the trapezoidal method—specifically, the force required to initiate and progressively propagate a tear from an initial cut under specified conditions. It is suitable for all types of geotextiles and impermeable geomembranes.

LBT-1126 Geosynthetic Material

This fixture is suitable for the CBR puncture strength test of geosynthetic materials. It uses a flat‑ended plunger to measure the CBR puncture strength of geosynthetic materials—specifically, the force recorded when the plunger penetrates the specimen at a constant displacement rate.

LBT-1132 Flexible Perforated Drainage Pipe Flat Pressure Resistance Test Fixture (New Standard)

This fixture is suitable for testing the flat‑face pressure resistance of flexible permeable pipes and is applicable to all types of such pipes.

LBT-1134 Test Fixture for Tensile Properties of Geotextiles and Composite Geomaterials (New Standard)

This fixture is used for testing the grip strength and corresponding elongation of geosynthetic materials, and is suitable for various types of geotextiles and sheet‑type geosynthetic composites.

Geotextile Puncture Resistance Test Apparatus

The annular clamp for geotextile puncture resistance is used to determine the puncture strength of geotextiles, geomembranes, and similar materials.

LBT-020 Digital Display Thickness Gauge for Plastics, Paper, Films, and Foils

Employing a mechanical contact measurement principle and fully complying with relevant standards for mechanical contact thickness measurement, this instrument is specifically designed for the precise thickness measurement of various materials—including plastic films, thin sheets, diaphragms, paper, foils, and silicon wafers—within its specified measurement range.

LBT-021 Touchscreen Friction Coefficient Tester for Plastic Films and Sheets

The friction coefficient tester is based on the GB 10006 national standard and is specifically designed to measure the static and kinetic coefficients of friction for materials such as plastic films and sheets, rubber, paper, cardboard, woven bags, textile‑style materials, metal‑composite tapes used in communication and optical cables, conveyor belts, wood, coatings, brake pads, wiper blades, footwear materials, tires, and more.

LBT-022A Geomembrane High-Voltage Spark Leak Detector

The geomembrane high-voltage spark‑testing leak detector is suitable for leak‑detection and integrity assessment in landfill liners, tailings‑dam seepage and damage inspections, landscape‑lake leakage monitoring, aquaculture‑pond leak detection, sewage‑storage‑tank leak inspections, and other construction‑related leakage‑prevention applications.

LBT-022 Geomembrane High-Pressure Leak Detector

Geomembrane leak detectors are suitable for leak‑and‑damage detection in landfill sites, tailings dam bodies, landscape lakes, aquaculture ponds, and wastewater storage tanks, among other applications requiring construction‑phase leak‑prevention inspections.

LBT-023 Dissolved Oxygen Coefficient Meter for Permeability Testing of Geotextile Synthetic Materials

The LBT-023 dissolved oxygen coefficient meter is an intelligent, online, continuous, real-time monitoring instrument. Its sensor employs a polarographic membrane‑covered dissolved oxygen electrode.

WZ-10 Geomembrane Multiaxial Elongation Testing Machine

This test method covers the measurement of the out-of-plane response of geomembranes to forces applied perpendicular to the specimen’s initial plane.

LBT070 Geosynthetic Horizontal Permeameter

It is suitable for determining the in‑plane hydraulic conductivity of geotextiles and plastic drainage boards.

LBT012 Geosynthetic Clogging Tester (Gradient Ratio Permeameter)

It is suitable for geosynthetic filter layer testing and has been developed and manufactured in accordance with standards such as JTG 3460-2026 “Test Procedures for Geosynthetics in Highway Engineering,” SL 235, and DL/T 5886.

LBT080 Geosynthetic Impermeability and Hydrostatic Pressure Tester (All-in-One Unit)

Development and design of a national standard for the coefficient of permeability.

LBT090C Fully Automatic Vertical Water Permeability Tester for Plastic Drainage Boards (Horizontal Type)

Plastic drainage boards, also known as geosynthetic drainage strips or plastic sheets, are a commonly used strip-type drainage material with a cross-sectional width of 10 cm and a thickness of approximately 5 mm.

LBT020C Geosynthetic Vertical Permeability Tester (National Standard, Hydraulic Engineering)

It is used to determine the vertical permeability coefficient and hydraulic conductivity of geotextiles and laminated geosynthetic materials under specified conditions.

LBT020G Geosynthetic Vertical Permeability Tester (National Standard, Highway)

This method is applicable to geotextiles and composite geotextiles with permeability, enabling the determination of their vertical hydraulic conductivity under a constant head. It measures the velocity of water flowing perpendicular to the plane of the geotextile at a unit hydraulic gradient (in mm/s).

LBT020Y Type Geosynthetic Vertical Permeability Tester (Compliant with National Standards, Highway Standards, and Water Conservancy Standards)

It is used to determine the vertical hydraulic conductivity and permeability of geotextiles and laminated composite geosynthetics under specified conditions, and is also applicable to testing the vertical permeability of various geotextiles and composite geosynthetics with permeable properties under a constant head.

LBT080-III Geosynthetic Impermeability and Hydrostatic Pressure Tester (All-in-One Unit, 3 Specimens)

It is used to determine the hydrostatic pressure resistance and permeability coefficient of various geosynthetic impermeable materials, such as geomembranes, composite geomembranes, geosynthetic waterproofing membranes, as well as one‑fabric‑one‑membrane, two‑fabric‑one‑membrane, or other waterproofing and impermeable materials.

CP-25 Geosynthetic Pneumatic Sample Preparation Machine

This product is designed for sample preparation in geosynthetic testing and is primarily used to prepare specimens required for tests on geotextiles, geomembranes, composite geotextiles, and composite geomembranes. It can meet the sample‑preparation needs of most geosynthetic tests, including mechanical‑property tests such as wide‑strip tensile, strip tensile, trapezoidal tear, and CBR puncture strength, as well as hydraulic‑property tests like effective aperture, vertical permeability coefficient, hydrostatic pressure resistance, and permeability coefficient.