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. +
Product Categories
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
Our 2022 Extensometer Catalog, Version 110 is now available! Not finding something you’re looking for? Ask us about a custom quote.