Triaxial Load Frames
Triaxial Load Frames are used to determine shear strength tests, (stress-strain relationships) of soil samples mounted in triaxial test cells pressurized with a fluid to replicate confining pressures. Karol-Warner manufactures Triaxial Load frames in 10,000 or 20,000lbf (44.5 or 89kN) capacities, and with a wide range of strain rates that are controllable to ±1% of the setpoint, allowing the Geotechnical Testing labs to perform unconsolidated-undrained (UU), consolidated-undrained (CU), consolidated-drained (CD) with pore-pressure as well as Unconfined compressive strength tests.
Load Frame, 0.001in - 0.1in / min, 10,000lbf
Load Frame, 0.0001 - 0.3in / min, 10,000lbf
Load Frame, 0.00001 - 0.29999in / min, 10,000lbf
Load Frame, 0.00001 - 0.29999in / min, 20,000lbf
Load Frame, 0.02 - 2in / min, 10,000lbf
All models include heavy-duty 14-gauge steel cabinets, vertical 1.25in (32mm) diameter coarse-threaded rods that allow the crosshead to quickly and easily adjust to the height for a variety of sample configurations.
These load frames are compatible with specialized components and fixtures Triaxial Cells, Load Cells, Load Rings, LVDT, and Mechanical or Digital Dial indicators. The versatile triaxial load frame units are also quickly adaptable to other popular soil testing applications by simply changing out minor components and accessories, making them a valuable resource in a lab that performs a wide array of soil strength tests. Data Acquisition Software is available to record data and calculates results for unconsolidated-undrained (UU), consolidated-undrained (CU), consolidated-drained (CD), and unconfined compressive strength of soil samples.
| Model No. | Strain Rate, in/min | Capacity, lbf | Triaxial | Unconfined Compressive Strength (UCS) | California Bearing Ratio (CBR) | Soil Cement | Marshall, Lottman, Semi-Circular Bend (SCB), Tack Shear |
|---|---|---|---|---|---|---|---|
| HM-396 | 0.001–0.1 | 10,000 | ✓ | ✓ | ✓ | ✓ | X |
| HM-397 | 0.0001–0.3 | 10,000 | ✓ | ✓ | ✓ | ✓ | X |
| HM-397B | 0.00001–0.29999 | 10,000 | ✓ | ✓ | ✓ | ✓ | X |
| HM-399 | 0.00001–0.29999 | 20,000 | ✓ | ✓ | ✓ | ✓ | X |
| HM-398 | 0.02–2 | 10,000 | ✓ | ✓ | ✓ | ✓ | ✓ |
- Load Frame has a 0.001 – 0.1in/min strain rate, and 10,000lbf (44.5kN) load capacity is a great choice for smaller testing labs and universities that need to perform a variety of soil tests.
- Load Frame has a 0.0001 – 0.3in/min strain rate and 10,000lbf (44.5kN) load capacity has a micro-stepping drive controller and can achieve a 1000:1 strain rate using simple push-button settings.
- Load Frame has a 0.00001 – 0.29999in/min strain rate and 10,000lbf (44.5kN) load capacity and features the widest range of strain rates and a 10,000lbf capacity to accommodate different soil tests.
- Load Frame has a 0.00001 – 0.29999in/min strain rate and 20,000lbf (89kN) load capacity has the same broad range of strain rates as Model 7631 but features a 20,000lbf capacity.
- Load Frame has a 0.02 – 2in/min strain rate and 10,000lbf (44.5kN) load capacity has a sufficient range for a number of soil tests, and can also be used for Marshall Stability testing of hot-mix asphalt samples.
Visit our main Load Frames page to view our full line.
