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

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

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