DONGGUAN LONROY EQUIPMENT CO LTD
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ISO 12957 ASTM D5321 Geosynthetic Direct Shear Apparatus Sand Geotextile Interface Friction Test Machine
Scope of Application
By conducting direct shear tests on the contact surface of standard sand and geotextile, the friction characteristics of the sand/geotextile interface were determined. This method is applicable to all geotextiles and their related products. High-precision stepping motors were used.
Compliant with standards
ISO12957.1, GB/T17635.1, ASTM D5321, JTGE50T1129, SL/T235-199
Product features
The mainframe adopts a floor-standing frame structure, featuring high strength, minimal deformation, and an elegant and stylish appearance; it uses imported high-precision ball screws for transmission, ensuring efficient and smooth operation;
It employs high-precision wheel-rim type load sensors, offering high measurement accuracy and excellent stability;
The transmission part uses circular arc tooth synchronous belts for transmission, ensuring no gap in both directions during the transmission process;
The speed ratio can exceed 1:100,000;
The fixture is specially designed for firm clamping, convenient operation, and no sliding of the jaw;
Special processes ensure the coaxiality of the testing machine and effectively eliminate the influence of irregular test specimens on the sensors.
ISO 12957 ASTM D5321 Geosynthetic Direct Shear Apparatus Sand Geotextile Interface Friction Test Machine
Technical Specification
| Horizontal shear implementation | Achieved using high-precision stepper motors |
| Force measurement range | 0 - 10KN |
| Vertical loading pressure | 100kpa, 200kpa, 300kpa, 400kpa |
| Horizontal shear rate | 0.02 - 3mm/min |
| Horizontal shear displacement | 0 - 30mm |
| Rated voltage | AC220V 50Hz |