Geosynthetics Bursting Strength Tester

The geotechnical synthetic material comprehensive testing instrument is used for testing the mechanical properties of geotechnical synthetic materials and the characteristics of soil-fabric interaction. It can perform mechanical tests on the geotechnical material itself, such as strip tensile testing, grip tensile testing, tear testing, CBR puncture testing, and penetration testing; and also direct shear friction testing and pull-out testing for soil-fabric interaction.

Application

It is used to determine the bursting strength of geotextiles, geomembranes and geocomposite materials composed of geotextiles and geomembranes. The specimen is clamped on the elastic diaphragm, the liquid pressure is applied under the diaphragm to expand the diaphragm and the specimen, and the liquid volume is increased at a constant speed until the specimen is broken, and the bursting strength and bursting degree are measured at this time. In the absence of a sample, the burst strength of the expanded film is measured when it reaches the burst height with a sample, and the difference between the two is the burst strength of the sample.

Standard

ASTM D3786-2008: Standard Test Method for Bursting Strength of Textile Fabrics—Diaphragm Bursting Strength Tester Method

SL/T 235-13-2012: Specification for Test and Measurement of Geosynthetics

Features

Meet a variety of standard requirements of the sample and area, wide range of application;

User-friendly operation interface, touch screen control, digital display, simple and easy to operate;

Supporting professional test system to realize the simultaneous measurement of force value, displacement and time during burst;

Select high-precision sensor, the result is accurate and reliable;

Equipped with professional sample fixture, sample loading is labor-saving, convenient and reliable;

The front of the panel is equipped with an emergency stop button, easy to operate, safe and reliable;

Built-in thermal printer, timely output test results.

Parameters

Configuration

1. One host

2. One power cable

3. 25 pieces of rubber diaphragm

4. Glycerin 500ml

5. 2 rolls of thermal printing paper

6. 1 wrench

7. Four feet

8. Product packing list 1 copy

9. 1 copy of product manual

10. One copy of product certificate

Test Procedures

Equipment Inspection and Preparation

Check that all components of the testing machine are in good condition, including the clamps, pressure system, and control system.

Ensure that the testing environment meets the test requirements, such as temperature and humidity.

Prepare the geosynthetic material samples to be tested, ensuring that the sample dimensions meet the test standards.

Sample Installation

Place the sample flat in the testing machine's clamps, ensuring that the sample is tightly fitted to the clamps without wrinkles or distortions.

Depending on the test requirements, specific clamps or fixing devices may be needed to ensure the stability of the sample during the test.

Setting Test Parameters

Set the test parameters on the testing machine's control panel, such as bursting pressure and loading rate. These parameters should be set according to the test standards and sample characteristics.

After ensuring that all parameters are set correctly, start the testing machine for preheating or self-checking (if required by the equipment).

Starting the Test

Start the test program. The testing machine will apply pressure to the sample according to the set parameters.

Observe the pressure changes during the test and the changes in the sample (e.g., deformation, rupture).

When the sample reaches the bursting point, the testing machine will automatically record the bursting pressure value and stop loading.

Data Recording and Analysis

Obtain the test data, such as the bursting pressure value, from the testing machine's control panel or data output port.

Record and analyze the test data, such as calculating the average value and standard deviation, to evaluate the bursting strength performance of the sample.

Cleaning and Maintenance

After the test is completed, turn off the power to the testing machine and clean any residue from the test platform and clamps.

Check that all components of the testing machine are in good condition.  Replace or repair any damaged or worn parts promptly.

Perform regular maintenance on the testing machine, such as lubricating moving parts and checking electrical connections, to ensure normal operation and extend the service life of the equipment.

FAQ

1. What is a Geosynthetics Bursting Strength Tester?

The Geosynthetics Bursting Strength Tester is a device used to measure the bursting strength of geosynthetics, such as geotextiles and geomembranes, by applying multi-directional stress until failure. This simulates real-world pressure conditions on the material.

2. How does the bursting strength test work?

The tester applies hydraulic or pneumatic pressure evenly across the surface of the geosynthetic sample. The pressure is gradually increased until the material ruptures, and the maximum pressure is recorded as the bursting strength.

3. What types of geosynthetics can be tested?

It can test woven, nonwoven, knitted geotextiles, geomembranes, geogrids, and composite geosynthetics used in civil engineering, drainage systems, embankments, roads, and landfill liners.

4. What parameters are measured during testing?

The tester measures maximum bursting pressure, deformation at failure, and rupture characteristics. Some models provide automated data logging and visual analysis of the failure point.

5. Why is bursting strength testing important?

Testing ensures geosynthetics can withstand multi-directional stresses in real-world applications, preventing tears or failures under high pressure. It helps engineers and manufacturers select materials with reliable strength and long-term durability.