Rock
Aggregate
Cement
Concrete
Soil
Steel
Bitumen/Asphalt
Security Survey Equipment
General Items
LATERAL EXTENSOMETER AZA1171
The AZA 1171 Lateral Extensometer is a precision mechanical instrument designed for accurate measurement of lateral (transverse) strain in concrete and other rigid materials during compressive testing. It is an essential accessory for civil engineering laboratories, research institutions, and quality control facilities engaged in the evaluation of concrete mechanical properties.
Specifically engineered for 150 mm diameter × 300 mm height concrete cylinders, the AZA 1171 enables precise monitoring of diameter expansion while the specimen is subjected to compressive loads. This lateral deformation data is critical for determining Poisson’s Ratio, modulus of elasticity, and understanding material failure behavior under stress.
Unlike axial extensometers, which measure vertical shortening, the AZA 1171 captures transverse expansion with high resolution. The device clamps externally onto the specimen without causing damage, ensuring non-destructive testing and repeatable measurements.
Description
Design & Construction
The extensometer consists of two movable frames pivoted at one end, allowing smooth and accurate tracking of lateral deformation. It is secured to the specimen using tightening screws, ensuring stable contact throughout the test.
A high-precision dial gauge (0.002 mm resolution, 5 mm travel) is mounted on the upper ring, with its probe resting against a hardened anvil. The zero reference can be accurately set using the anvil adjustment screw, allowing consistent baseline readings before load application.
All components are manufactured from corrosion-resistant materials, ensuring durability, dimensional stability, and long service life even under repeated testing cycles. The instrument is supplied in a wooden carrying case for safe storage and transport.
Why Use a Lateral Extensometer?
When concrete is compressed, it expands laterally. Measuring this deformation is essential for a complete understanding of material behavior.
Key Advantages:
-
Accurate determination of Poisson’s Ratio
-
High-resolution lateral strain measurement
-
External mounting with no specimen alteration
-
Reliable performance during full compression cycles
-
Compatible with most compression and universal testing machines
Key Features & Benefits
High Precision Measurement
Dial gauge with 0.002 mm resolution ensures accurate strain detection.
Non-Destructive External Mounting
Clamps directly onto the specimen without embedded sensors or adhesives.
Robust Mechanical Design
Two-frame pivoted structure provides stable and repeatable readings.
Easy Zero Adjustment
Anvil screw allows precise zero setting before testing.
Wide Compatibility
Designed for use with standard compression and universal testing machines.
Supplied Ready for Use
Delivered with dial gauge and protective wooden carrying case.
Applications
-
Determination of Poisson’s Ratio in concrete
-
Elastic modulus evaluation
-
Compression testing of concrete cylinders
-
Civil engineering laboratory testing
-
Research and academic material studies
-
Quality control in construction materials testing
Specifications
| Parameter | Value |
|---|---|
| Model | AZA 1171 – Lateral Extensometer |
| Specimen Size | 150 mm dia × 300 mm height concrete cylinder |
| Dial Gauge Range | 0–5 mm |
| Dial Gauge Resolution | 0.002 mm |
| Measuring Type | Mechanical (Dial Gauge) |
| Mounting Method | Clamp-based with tightening screws |
| Frame Construction | Corrosion-resistant steel / alloy |
| Gauge Adjustment | Anvil screw zero setting |
| Compatibility | Compression & Universal Testing Machines |
| Supply | Supplied with wooden carrying case |
| Application Area | Concrete & rigid materials testing |
Frequently Asked Questions (FAQ)
Q1: What is a lateral extensometer used for?
It measures lateral deformation of concrete specimens during compressive loading.
Q2: Which specimen size is it designed for?
It is designed for 150 mm diameter × 300 mm height concrete cylinders.
Q3: Can it be used with any compression testing machine?
Yes, it is compatible with most standard compression and universal testing machines.
Q4: Is the measurement destructive?
No. The extensometer mounts externally and does not alter the specimen.
Q5: How accurate is the measurement?
The dial gauge provides 0.002 mm resolution, ensuring high accuracy and repeatability.
Additional information
| Gauge Length |
50 mm (standard), adjustable |
|---|---|
| Resolution |
0.01 mm |
| Operating Environment |
Lab and industrial setups |
You may also like…
Related products
BEAM MOULD AZA1124
Purpose & Importance
Flexural strength testing evaluates a concrete beam’s ability to resist bending stress. Standards such as IS 516, ASTM C78, and BS EN 12390-5 specify strict guidelines for specimen dimensions and surface finish. The AZA1124 Beam Mould enables users to produce uniform, high-quality concrete beams with precise cross-sections, ensuring reliability and compliance during flexural strength evaluation.Beams cast from AZA1124 are used for:
- Flexural tensile strength testing
- Load-bearing capacity studies
- Structural behavior simulations
- R&D on mix designs and reinforcement additives
Ideal for:
- Civil engineering research laboratories
- Cement product quality assurance departments
- Construction material testing centers
- Technical universities and engineering institutions
COMPACTION FACTOR APPARATUS AZA1107
- Precision measurement of compaction factor for dry and stiff concrete
- Double-hopper system with smooth trap release
- Conforms to IS 1199 and BS 1881 standards
- Suitable for precast plants, RMC units, and civil engineering labs
- Rugged, powder-coated mild-steel construction
- Cylindrical container included for final measurement
CONCRETE FLOW TABLE TEST SET AZA1110
AZA1110 Concrete Flow Table Test Set is a precision-engineered laboratory apparatus designed to determine the workability, consistency, and flow characteristics of fresh concrete. It is especially suitable for Self-Compacting Concrete (SCC), precast concrete, and high-consistency mixes where the traditional slump test is not effective.
This test set works by allowing a freshly mixed concrete sample to spread under controlled, repeated vertical jolts of a mechanically calibrated table. The final spread diameter of the concrete is measured to assess its flowability and uniformity.
Built with a rigid, precisely machined table surface, the AZA1110 ensures repeatable and reliable results. Its heavy-duty construction allows long-term use in demanding laboratory environments while remaining easy to clean, store, and maintain.
The apparatus complies with major international standards including IS 1199, ASTM C1437, and BS EN 12350-5, making it suitable for both domestic and international testing requirements.
J-RING, NARROW GAP AZA1109
AZA1109 J-Ring – Narrow Gap is a precision testing apparatus designed to evaluate the passing ability of Self-Compacting Concrete (SCC) under highly restrictive conditions. This device simulates densely congested reinforcement zones by creating artificial obstructions that the fresh SCC must flow through without blocking or segregating. It is an essential tool for determining whether SCC mixes are suitable for heavily reinforced structural elements such as beams, columns, and shear walls.
The narrow gap design offers a more stringent test compared to standard J-Rings, allowing engineers and quality control professionals to accurately observe flow diameter, T50 flow time, and blocking behavior. When used in combination with a standard slump flow cone, AZA1109 provides reliable, repeatable results that help optimize mix designs and ensure consistent on-site performance.
Manufactured from durable, corrosion-resistant steel, the AZA1109 is built for repeated use in laboratory and field testing environments. The apparatus is fully compliant with ASTM C1621 and EFNARC guidelines, ensuring internationally accepted testing procedures.
LABORATORY PAN MIXER (CAPACITY 40 LTRS) AZA1117
Key Features
- 40-litre mixing capacity ideal for cube specimen preparation
- Supports aggregate sizes up to 20 mm
- 2 HP motor, 960 RPM, 3-phase for heavy-duty mixing
- Adjustable steel blades for both dry and wet mix uniformity
- Portable design with wheels for easy movement
- Full-access drum lid for safe loading, pouring, and cleaning
- Gear-driven system for uniform, high-consistency mixing
- Easy maintenance and corrosion-resistant finish
MOULD VERIFICATION KIT – PRECISION QC TOOL AZA1121
- Flatness of mould and specimen surfaces
- Straightness along mould edges and specimen sides
- Perpendicularity of internal walls and corners
- Dimensional accuracy (L × W × H, and diameter for cylinders)
- Go/No-Go tolerance checks for standardized cube mould sizes
- Surface deviation & gap measurement using feeler gauges
PLASTIC CUBE MOULD AZA1126
PLASTIC CYLINDERICAL MOULD AZA1127
| Model No. | Size | Material | Weight |
|---|---|---|---|
| AZA 1127 A | 150 mm × 300 mm | Polyurethane | 1.65 kg |
| AZA 1127 B | 100 mm × 200 mm | Polyurethane | 0.90 kg |