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Extensometers for materials testing

Rock, Concrete and Asphalt Extensometers

Model 3542RA

Averaging Axial Extensometers for Large Compression Samples

Designed primarily for compressive strength tests on rock, concrete and other large compression samples, this model measures axial strain on opposite sides of the test specimen, and the output is an average of the two readings. +

Model 3442RA1

Miniature Averaging Axial Extensometers

Designed for applications where tensile or compressive strength tests on small rock, concrete and other small compression samples is desired. +

Model 3544

Circumferential Extensometers

Designed for concrete and rock compression testing or for compression tests on other large samples. +

Model 3909

Extensometers for Simple Performance Testing of Asphalt

Designed for measuring axial displacements in the simple performance tests prescribed by NCHRP Report 465, and determining dynamic modulus of hot mix asphalt per AASHTO TP062. +

Model 3910

Extensometers for Creep Compliance and Tensile Strength Testing of Asphalt

Designed to many of the needs for testing asphalt core samples in 4 and 6 inch diameters. +

Model 3911

Extensometers for Indirect Tensile Testing of Asphalt

Designed to meet many of the needs for testing asphalt core samples in 4 and 6 inch diameters. +

Model 3975

Diametral Extensometers for Rock and Concrete Testing

Designed for accurate measurement of small diametral strains such as those required to determine Poisson’s ratio of rock, concrete and asphalt samples. +

Download Product Guide

Axial and High Temperature

Shunt Calibration

SCM Shunt Calibration Modules

Knife Edge Options

Available for Epsilon Extensometers

Repairs/Service

If your unit is in need of service, calibration or repair, initiate the RMA process with us and we will be happy to assist.

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Download Catalog

2017 Extensometer Catalog, Version 109 is now available! Not finding something you’re looking for? Ask us about a custom quote.