Averaging Axial Extensometers for Large Compression Samples – Model 3542RADesigned 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. Gauge lengths from 1 to ...
- Circumferential Extensometers – Model 3544
Designed for concrete and rock compression testing or for compression tests on other large samples. This model may be used simultaneously with the Model 3542RA axial extensometers.
Diameter Range:
50-200 mm
Measuring Ranges:
2 mm to 12... - Diametral Extensometers for Rock and Concrete Testing – Model 3975
Designed for accurate measurement of small diametral strains such as those required to determine Poisson’s ratio of rock, concrete and asphalt samples. The units are designed to be used in conjunction with the Model 3542RA axial averaging extensometer....
- Extensometers for Creep Compliance and Tensile Strength Testing of Asphalt – Model 39
Designed to many of the needs for testing asphalt core samples in 4 and 6 inch diameters. The unit meets test method requirements for strain measurement developed under the U.S. Federal Highways SHRP program.
Gauge Lengths:
25-100 mm
Measu... - Extensometers for Indirect Tensile Testing of Asphalt – Model 3911
Designed to meet many of the needs for testing asphalt core samples in 4 and 6 inch diameters. It meets test method requirements for strain measurement developed under the U.S. Federal Highways SHRP program.
Specimen Size:
100 mm and 150 mm - Extensometers for Simple Performance Testing of Asphalt – Model 3909
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.
Gauge Lengths:
70-100 mm
Measuring Ranges:
±0.5 mm
Temp...