Asphalt tensile fracture performance tester

1. Host: including servo loading mechanism, used to apply tension to the sample.

2. Thermostatic water bath: used to maintain a constant temperature of the sample during the testing process, typically ranging from -40 ℃ to room temperature.

3. Control and data acquisition system: using microcomputer control technology, equipped with high-precision sensors, real-time collection of experimental data.

4. Touch controller: Equipped with a large screen touch LCD display controller, it can independently complete experiments or be connected to a computer.

5. Force and displacement sensors: High precision force sensors and LVDT displacement sensors are used for precise measurement of tension and displacement.

6. Refrigeration cycle unit: used to maintain a low temperature environment in the water tank, adopting an external circulation structure to reduce vibration.

1. High degree of automation: Adopting microcomputer control, the experimental process is fully automated, and data is automatically collected and analyzed.

2. High precision measurement: Equipped with high-precision sensors, the tension measurement accuracy can reach ± 1.0%, and the displacement measurement accuracy can reach ± 0.1 mm.

3. Accurate temperature control: Adopting a dual compressor stacked combination and heater components, the temperature control accuracy can reach ± 0.1 ℃.

4. Powerful data processing capabilities: Experimental data can be displayed and stored in real-time, supporting data interaction with external software such as Microsoft Excel.

5. Safety protection: equipped with limit and overload protection devices to ensure safe use.

The asphalt Direct Tensile Determination is widely used in asphalt production enterprises, highway pavement construction enterprises, testing units, research institutes, and colleges and universities to evaluate the low-temperature fracture performance of asphalt materials.

The Asphalt tensile Strength Testing Machine adopts computer control, automatic acquisition, software processing and drawing graphics, real-time display, storage and export functions, and is equipped with a circulating cold source and a special tensile fixture.

- Loading system: usually composed of a sturdy double-column loading frame, precise motor actuator, load sensor, etc., which can provide stable tensile force and measure load size.

- Temperature control system: including temperature control box, refrigeration unit and heating device, etc., which can control the test temperature within the specified range. The common temperature control range is -40℃ to 80℃.

- Measurement and data acquisition system: high-precision displacement sensors are used to monitor the deformation of the test piece. The 8-channel control and data acquisition system (CDAS) can collect load, displacement and other data in real time and transmit them to the computer for processing.

Fracture strength (MPa): reflects the tensile strength of the material.

Failure strain (%): characterizes the ductility of the material, and high strain values ​​indicate better crack resistance.

Stiffness modulus (MPa): stress-strain ratio, evaluates the stiffness of the material.

Material research and development: compare the performance of different asphalts or modifiers (such as SBS, rubber).

Pavement design: combine climate data to select asphalt grades suitable for local temperatures.

Quality inspection: verify whether the asphalt in construction meets the specification requirements (such as low temperature indicators in PG grading).