AZA 1171 LATERAL EXTENSOMETER

Description

Lateral Extensometer is an essential instrument for determining the lateral strain or deformation in concrete and similar rigid materials during compressive testing. Designed for high precision and durability, this extensometer is a standard tool in materials testing laboratories and civil engineering applications.

Unlike axial extensometers, the lateral extensometer is specifically engineered to monitor the transverse or lateral deformation of cylindrical or cubical concrete specimens. By clamping onto the specimen, it allows for the detection of minute dimensional changes under load — a crucial metric when evaluating Poisson’s Ratio, modulus of elasticity, or failure characteristics of materials. AZALAB

This is for determining the lateral extension of 150 mm dia x 300 mm high cement concrete cylinders while testing them under compression. The unit consists of two movable frames pivoted at one end. The extensometer is fixed to the specimen with the help of tightening screws. The lateral extension is indicated on a dial gauge of 0.002 mm x 5 mm is mounted on the upper ring and the tip of the dial gauge rests on an anvil. The zero on the dial gauge can be set by adjusting the anvil screw. Supplied in a wooden carrying case.

Why Use a Lateral Extensometer?

When concrete specimens undergo compressive loading, they not only shorten axially but also expand laterally. Measuring this lateral strain is vital in research and quality control for understanding material behavior. The lateral extensometer offers a simple yet robust method to capture this data with high fidelity.

Key benefits of using a lateral extensometer include:

• Non-destructive Measurement: Attaches externally without altering the specimen.

• High Accuracy: Offers micrometer-level resolution, ensuring reliable test results.

• Durability: Built using corrosion-resistant materials to withstand repeated usage.

• Easy Integration: Fits seamlessly with most universal or compression testing machines.

Design and Compatibility

The extensometer consists of two contact points that are placed on either side of the specimen. It uses a mechanical or electronic gauge to detect and record changes in diameter. Most models are equipped with a dial gauge or can be upgraded with a digital LVDT sensor for data acquisition.

Its adjustable arms and clamps make it suitable for various specimen sizes and shapes. The modular design also ensures compatibility with automated data logging systems for real-time monitoring.AZALAB

Applications Across Industries

• Construction: Analyze concrete mixes, assess structural integrity.

• Education & Research: Ideal for civil engineering labs and training programs.

• Material Science: Used in experiments to test the mechanical properties of new composites.

• Industrial Testing: Validate construction materials for regulatory compliance.

Specifications

✅ FREQUENTLY ASKED QUESTIONS (FAQ)

Q1: What is a lateral extensometer used for?
A: It is used to measure lateral deformation in concrete specimens during compressive loading.

Q2: Is it compatible with all testing machines?
A: Yes, it works with most standard compression and universal testing machines.

Q3: Can it be used for cylindrical and cube specimens?
A: Yes, the adjustable clamps accommodate both shapes.

Q4: What is the maximum lateral strain it can measure?
A: Typically ±3 mm, depending on the model.

Q5: Does it support digital data logging?
A: Advanced models support integration with LVDT sensors and DAQ systems.