Dial Gauge Extensometer, Compressometer Dial Indicator, 6x12in

Dial Gauge Compressometer / Extensometer – 6 × 12 in

Accurate Concrete Strain & Modulus Testing

The Dial Gauge Compressometer / Extensometer – 6 × 12 in is a precision instrument used in concrete compression testing to measure strain during loading. It helps determine key mechanical properties such as modulus of elasticity and Poisson’s ratio, making it an essential tool for laboratory-based concrete evaluation.

Designed for testing 6 × 12 in concrete cylinders, this device simultaneously measures axial deformation and horizontal extension. It is widely used in material testing laboratories, quality control facilities, and research environments that rely on standardized concrete testing equipment.

How It Works

The Dial Gauge Compressometer / Extensometer combines compressometer and extensometer functions into a single testing system:

• A compressometer measures vertical strain during loading
• An extensometer measures transverse (horizontal) deformation
• A third center yoke attaches securely to the concrete specimen to capture lateral movement
• Mechanical dial indicators record deformation in real time

When used with compression testing machines, this dual-measurement approach provides a complete stress–strain profile of concrete cylinders during compression testing.

Key Features

• Designed for 6 × 12 in (152 × 305 mm) concrete cylinders
• Third yoke for horizontal extension measurement
• Dual mechanical dial indicators for axial and transverse strain
• Determines elastic modulus and Poisson’s ratio
• Lightweight aluminum yokes
• Durable cadmium-plated steel components
• Easy setup and operation
• Fully compliant with ASTM C469 / C469M
• Compatible with standard compression testing machines

Technical Specifications

• Model Size: 6 × 12 in (152 × 305 mm)
• Accuracy: ±0.001 in (±0.025 mm)
• Resolution: 0.0001 in (0.0025 mm)
• Measurement Range: 0.2 in (5 mm)
• Weight: Approx. 10 lb (4.5 kg)
• Standards Compliance: ASTM C469 / C469M

Applications

This instrument is ideal for:

• Concrete cylinder compressive strength testing
• Measuring stress–strain relationships
• Evaluating concrete mix consistency
• Determining modulus of elasticity
• Quality control and compliance testing
• Research and development of construction materials

For accurate strain measurement, the compressometer/extensometer is often paired with dial indicators and gauges to ensure precise deformation readings during testing.

Benefits

• Accurate strain measurement for dependable test results
• Simultaneous axial and transverse deformation readings
• Durable construction for frequent laboratory use
• Improves efficiency in concrete material testing
• Ideal for laboratories, universities, and research facilities

The Dial Gauge Compressometer / Extensometer – 6 × 12 in is a dependable solution for ASTM-compliant concrete testing. Its rugged construction, precise mechanical indicators, and dual-measurement capability make it a valuable addition to any professional concrete testing laboratory.