PORE PRESSURE APPARATUS 10 KG/CM² AZA0904
The AZA0904 Pore Pressure Apparatus from Azalab is a precision laboratory instrument designed for accurate measurement of pore water pressure in saturated soil specimens during advanced geotechnical testing. It is an essential accessory for Consolidated Undrained (CU) and Consolidated Drained (CD) triaxial shear tests, where correct interpretation of effective stress and soil stability depends directly on reliable pore pressure data.
Engineered for seamless integration with triaxial cells, the AZA0904 enables real-time monitoring of pore pressure generation and dissipation as axial and confining loads are applied. Its rugged construction, calibrated pressure gauge, and leak-proof valve system ensure dependable performance in routine laboratory testing as well as research-grade applications.
Description
Applications
The AZA0904 Pore Pressure Apparatus is widely used in:
-
CU and CD triaxial shear strength testing
-
Permeability testing of cohesive and fine-grained soils
-
Measurement of excess pore water pressure during shearing
-
Consolidation and effective stress studies
-
Academic and applied research in soil mechanics
It allows engineers to accurately assess pore pressure behavior, which directly influences shear strength evaluation, slope stability analysis, and settlement predictions.
Construction & Features
The apparatus is manufactured using high-quality, corrosion-resistant materials for long-term accuracy and durability. Standard features include:
-
Bourdon-type pressure gauge with 0–10 kg/cm² range
-
Transparent acrylic or polycarbonate water reservoir
-
De-airing valve and drain outlet for proper saturation control
-
Air inlet with control valve and pressure regulator
-
Quick-coupling outlets for direct connection to triaxial cells
-
Rigid base with anti-slip mounting for bench-top use
The transparent reservoir allows easy visual inspection for trapped air bubbles, ensuring correct saturation and reliable readings. An optional digital pressure transducer is available for connection to automated data acquisition and logging systems.
Standards & Compliance
The AZA0904 conforms to recognized international standards for soil testing:
-
ASTM D4767 – Consolidated Undrained Triaxial Compression Test
-
BS 1377 Part 7 – Triaxial Tests on Soils
-
IS 2720 Part 11 – Determination of Shear Strength Parameters
Key Benefits
-
Accurate pore pressure measurement up to 10 kg/cm²
-
Suitable for both manual and digital data acquisition systems
-
Leak-proof design with precision control valves
-
Easy integration with triaxial, permeability, and consolidation setups
-
Essential for effective stress evaluation in geotechnical design
Specifications – AZA0904 Pore Pressure Apparatus
| Feature | Specification |
|---|---|
| Pressure Range | 0 – 10 kg/cm² |
| Pressure Gauge | Bourdon Dial (Digital optional) |
| Reservoir Material | Transparent Acrylic / Polycarbonate |
| Reservoir Capacity | Approx. 250 – 500 ml |
| Connections | Inlet, Outlet, Drain with Quick Couplers |
| Valves | Air Release, Pressure Regulator, Drain |
| Maximum Operating Pressure | 10 kg/cm² |
| Mounting | Bench-top, Anti-Slip Base |
| Compatible Tests | CU, CD, Permeability, Consolidation |
| Standards | ASTM D4767, BS 1377 Part 7, IS 2720 Part 11 |
| Application | Laboratory soil pore pressure measurement |
Frequently Asked Questions (FAQ)
Q1: What is the function of the AZA0904 in triaxial testing?
A1: It measures pore water pressure generated within a saturated soil specimen during shearing, which is essential for determining effective stress.
Q2: Can the AZA0904 be used for permeability testing?
A2: Yes, it is suitable for permeability and consolidation studies where pore pressure response is critical.
Q3: Is digital data logging supported?
A3: Yes, an optional digital pressure transducer allows integration with electronic data acquisition systems.
Q4: What pressure range does the apparatus support?
A4: The AZA0904 accurately measures pore pressures from 0 to 10 kg/cm².
Q5: How often should calibration be performed?
A5: Periodic calibration is recommended to maintain accuracy, particularly for research and high-precision testing.
Pore pressure measurement up to 10 kg/cm²
Essential for CU and CD triaxial shear tests
Supplied with Bourdon gauge, control valves, and transparent reservoir
Suitable for permeability and consolidation studies
Rugged, calibrated design for reliable geotechnical laboratory use
Additional information
| Pressure Range |
0 – 10 kg/cm² |
|---|---|
| Pressure Gauge Type |
Bourdon Dial or Digital (optional) |
| Reservoir Material |
Transparent Acrylic or Polycarbonate |
| Reservoir Capacity |
250 – 500 ml (approx.) |
You may also like…
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.
AIR BAG TRAINER AZA1246
The AZA1246 AZALAB Air Bag Trainer is a comprehensive educational training platform designed to demonstrate the structure, operation, diagnostics, and fault analysis of modern automotive airbag systems, also known as Supplemental Restraint Systems (SRS). Built using OEM automotive components, this trainer delivers a realistic learning experience while maintaining complete operational safety.
This system is ideally suited for automotive engineering colleges, ITIs, polytechnic institutes, vocational training centers, and service technician programs, enabling both theoretical instruction and hands-on diagnostics practice.
ALTERNATOR TRAINER AZA1247
The AZA1247 AZALAB Alternator Trainer is a hands-on automotive electrical training system designed to demonstrate the working principles, construction, and diagnostics of an automotive alternator with external voltage regulation. Built using OEM automotive components, this trainer provides a realistic and safe learning platform for students, technicians, and trainees to understand vehicle charging systems in depth.
This system is ideal for automotive engineering institutes, ITIs, polytechnics, vocational training centers, and service technician programs, supporting both theoretical instruction and practical experimentation.
ARC WELDING MACHINE AZA1234
The AZA1234 Arc Welding Machine by A Z A Lab is a high-performance industrial welding solution engineered for demanding fabrication, maintenance, and structural welding applications. Designed using advanced inverter technology, this machine delivers superior arc stability, high efficiency, and reliable welding performance across a wide range of electrode types and materials.
With an inverter frequency of up to 20 kHz, the AZA1234 ensures fast dynamic response, reduced spatter, and excellent weld bead appearance. Its robust electrical design supports a high duty cycle, allowing continuous operation under heavy loads while maintaining consistent welding output—even with output cable lengths of up to 100 meters.
AUOTFLASH AUTOMATED ABEL FLASH POINT ANALYZER AZA1277
The AutoFlash-1277 (Model: AZA1277) from AZA Lab is a fully automated, microcontroller-based Abel Flash Point Analyzer designed for accurate, safe, and repeatable determination of flash points of combustible liquids. Engineered to meet stringent international testing requirements, this advanced instrument conforms to IP 170, ISO 13736, and IS 1448 (Part 20) standards.
Covering a standard temperature range of –30°C to 70°C, extendable up to 110°C, the AZA1277 is ideally suited for laboratories involved in petroleum testing, petrochemical quality control, fuels research, and regulatory compliance.
AUTODIST-86 GLASS DISTILLATION UNITAZA1282
The AutoDist-86 Glass Distillation Unit (Model AZA1282) is a high-performance laboratory water distiller designed for the continuous production of high-purity distilled water.
Constructed entirely from borosilicate glass 3.3, the unit ensures zero metallic contamination, excellent thermal resistance, and long operational life. It is ideal for laboratories requiring consistent, low-conductivity distilled water for analytical, pharmaceutical, and research applications.Distillation Performance
- Distillate Output: Up to 4 L/hour (±10%)
- Suitable for routine and medium-scale laboratory demand
- Efficient removal of:
- Dissolved salts
- Heavy metals
- Organic/inorganic impurities
- Microbial contaminants
Related products
DYNAMIC CONE PENETROMETER AZA0872
The AZA0872 Dynamic Cone Penetrometer (DCP) from Azalab is a robust, field-proven instrument designed for rapid in-situ evaluation of soil strength, stiffness, and compaction. It is extensively used by civil engineers, geotechnical consultants, and construction teams for pavement design, quality control, and site investigation works.
The DCP test provides a fast and economical method to assess the strength of subgrades, sub-bases, and granular base course layers, with results that can be directly correlated to California Bearing Ratio (CBR) values. This eliminates the need for time-consuming laboratory testing or undisturbed soil sampling, enabling immediate decision-making at site.
HIGH SPEED STIRRER AZA0855
LINEAR SHRINKAGE MOULD AZA0850
The AZA0850 Precision Linear Shrinkage Mould from AZALAB is a compact and highly accurate laboratory instrument designed for determining the linear shrinkage of fine-grained cohesive soils in accordance with BS 1377-2. This test is a key component of soil classification and is especially important in identifying shrink–swell behavior of clays and expansive soils.
Linear shrinkage testing measures the reduction in length of a soil specimen upon drying, expressed as a percentage of its original length. The results provide valuable insight into soil expansiveness, volume stability, and suitability for foundations, pavements, and earthworks.
Manufactured from high-quality brass or stainless steel, the AZA0850 mould offers precise internal dimensions, excellent corrosion resistance, and a smooth polished finish for easy sample preparation and removal. Its robust construction ensures repeatable, reliable results even under high-frequency laboratory use.
LIQUID LIMIT DEVICE WITH COUNTER AZA0853
The AZA0853 Liquid Limit Device with Counter from AZALAB is a precision-engineered instrument used for determining the liquid limit of soils in accordance with the Casagrande method. This test is a fundamental component of soil classification and geotechnical investigation, providing critical insight into the plasticity, compressibility, and shear strength of fine-grained soils.
Designed for reliable, repeatable, and standardized testing, the AZA0853 is widely used in geotechnical laboratories, civil engineering departments, construction quality control labs, and academic institutions.
Principle of Liquid Limit Test (Casagrande Method)
The liquid limit is defined as the water content at which soil transitions from a plastic state to a liquid state. In practice, it is determined as the moisture content at which a standard groove cut in the soil sample closes over a length of 12.5 mm under 25 blows of the liquid limit apparatus.
The AZA0853 consists of a polished brass cup mounted on an adjustable bracket. The cup is repeatedly raised and dropped from a fixed height of 1 cm onto a hard rubber base by means of a manually operated cam mechanism. A built-in mechanical counter accurately records the number of blows, ensuring compliance with testing standards and reducing operator error.
MOTORISED SAND EQUIVALENT SHAKER AZA0861
PLASTIC LIMIT SET AZA0848
- Soil classification (Atterberg limits)
- Assessing workability and consistency
- Evaluating shrink–swell characteristics
- Supporting foundation, pavement, and earthwork design
