ADVANCED TRIAXIAL TEST SYSTEM (UU–CU–CD CAPABLE) AZA1296
The AZA LAB Advanced Triaxial Test System AZA1296 is a fully automated geotechnical laboratory testing system designed for accurate determination of soil shear strength and deformation characteristics under controlled stress and drainage conditions.
The system supports all major triaxial compression testing modes including:
- Unconsolidated Undrained (UU)
- Consolidated Undrained (CU)
- Consolidated Drained (CD)
Engineered for high-precision geotechnical analysis, the AZA1296 replicates in-situ soil stress conditions to evaluate soil stability, strength behavior, pore pressure response, and failure mechanisms under axial loading.
The system integrates servo-controlled loading, automatic pressure regulation, real-time pore pressure monitoring, automated data acquisition, and advanced software analysis, making it ideal for geotechnical laboratories, civil engineering projects, infrastructure development, research institutions, and academic applications.
Description
TEST METHODS & STANDARDS
The AZA1296 fully complies with internationally recognized geotechnical testing standards including:
- ASTM D2850
- ASTM D4767
- BS 1377-7
- AASHTO T296
- AASHTO T297
- IS 2720 Part 11
PRINCIPLE OF OPERATION
The AZA1296 subjects cylindrical soil specimens to controlled confining pressure and axial loading to determine soil strength characteristics under simulated field stress conditions.
The system performs:
UU TEST (UNCONSOLIDATED UNDRAINED)
- No drainage permitted
- Rapid testing procedure
- Determines undrained shear strength
CU TEST (CONSOLIDATED UNDRAINED)
- Sample consolidated before loading
- Drainage allowed during consolidation only
- Pore pressure monitored during shear
CD TEST (CONSOLIDATED DRAINED)
- Full drainage permitted throughout test
- Slow strain rate testing
- Determines effective stress parameters
The automated system continuously records load, displacement, pore pressure, and volume change throughout the test cycle.
AUTOMATED CONTROL SYSTEM
The AZA1296 incorporates advanced automated control for highly accurate and repeatable testing.
Automation features include:
- Servo-controlled axial loading
- Automatic pressure regulation
- Programmable strain rate control
- Real-time feedback monitoring
- Automated test sequencing
- Live graphical plotting
- Automatic report generation
- Data export to Excel and PDF
The software minimizes operator dependency while improving testing consistency.
LOAD FRAME & MEASUREMENT SYSTEM
The system features a high-stiffness load frame designed for precision geotechnical testing.
Measurement systems include:
- High-resolution load cell
- LVDT displacement transducer
- Pore pressure transducer
- Automatic pressure controllers
- Volume change measurement system
The rigid vibration-isolated structure improves measurement stability and test repeatability.
PRESSURE CONTROL SYSTEM
The advanced pressure control system supports accurate simulation of field stress conditions.
Features include:
- Dual or triple pressure channels
- Automatic cell pressure control
- Automatic back pressure regulation
- Pore pressure monitoring
- Pneumatic or hydraulic pressure generation
- Stable long-duration pressure holding
This enables accurate saturated and unsaturated soil testing.
SOFTWARE & DATA ACQUISITION
The AZA1296 includes advanced Windows-based control and analysis software.
Software functions include:
- Real-time graphical plotting
- Live stress-strain curves
- Pore pressure monitoring
- Automatic calculations
- Test parameter customization
- Data logging and storage
- Auto-generated reports
- Export to Excel and PDF
The high-speed acquisition system captures critical soil behavior during failure stages.
SUITABLE SAMPLE TYPES
- Clay soils
- Silty soils
- Sandy soils
- Mixed soils
- Stabilized soils
- Undisturbed samples
- Remolded specimens
- Saturated and unsaturated soils
TECHNICAL SPECIFICATIONS
| PARAMETER | SPECIFICATION |
|---|---|
| Model | AZA1296 |
| Product Type | Advanced Triaxial Test System |
| Test Modes | UU, CU, CD |
| Sample Types | Undisturbed & Remolded Cylindrical Soil Specimens |
| Specimen Diameter Range | 38 mm to 100 mm |
| Axial Load Capacity | 20–50 kN Typical |
| Optional Load Capacity | 50 kN / 100 kN |
| Load Resolution | 0.01 kN |
| Load Frame Type | Servo-Controlled High-Stiffness Frame |
| Pressure System | Pneumatic / Hydraulic Automatic Control |
| Pressure Channels | Dual / Triple Channel |
| Measurement Sensors | Load Cell, LVDT, Pore Pressure Transducer |
| Volume Change Measurement | Integrated |
| Load Cell Accuracy | ±0.1% of Full Scale |
| Data Acquisition | High-Resolution Multi-Channel System |
| Software | Windows-Based with Real-Time Plotting |
| Data Export | Excel & PDF |
| Frame Construction | Corrosion-Resistant Steel |
| Base Structure | Vibration Isolation Base |
| Power Supply | 220–240 V AC, 50/60 Hz |
| Standards Compliance | ASTM D2850, ASTM D4767, BS 1377-7, AASHTO T296/T297, IS 2720 Part 11 |
STANDARD SUPPLY
- Servo-controlled load frame
- Triaxial cell assembly
- Pressure controllers
- Load cell
- LVDT displacement transducer
- Pore pressure transducer
- Data acquisition system
- PC software package
- Sample accessories
- Power cables
- User manual
OPTIONAL ACCESSORIES
- Additional pressure channels
- High-capacity load frames
- Unsaturated soil testing modules
- Automatic volume change devices
- External printers
- Calibration kits
- Additional triaxial cells
- Environmental chamber integration
ADVANTAGES
- Complete UU, CU, and CD testing capability
- Highly accurate and repeatable results
- Automated operation reduces human error
- Real-time graphical analysis
- Suitable for cohesive and granular soils
- Flexible specimen size compatibility
- High-speed data acquisition
- Durable industrial-grade construction
- Ideal for research and quality control
- International standards compliance
COMPLIANCE & APPLICABILITY
The AZA1296 is designed for professional geotechnical laboratory testing according to ASTM, BS, AASHTO, and IS standards.
The system is suitable for foundation engineering, infrastructure projects, earthwork design, slope stability analysis, research studies, and advanced soil mechanics investigations.
Additional information
| Test Modes |
UU, CU, CD |
|---|---|
| Load Frame Capacity |
50 kN / 100 kN (varies by model) |
| Load Resolution |
0.01 kN |
| Max Sample Diameter |
38 mm to 100 mm |
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