Extensometers for Simple Performance Testing of Asphalt – Model 3909 in Jinan, Shandong, China

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 mmMeasuring Ranges:±0.5 mmTemperature Range:-265℃ to 200℃ with -LHT option
These eThese extensometers are typically mounted as two axial modules with independent outputs capable of measuring specimen deformations in two locations, but they can be mounted as a single unit or up to four on a sample. They quickly clip onto gauge points mounted per the test requirements.Magnets at each end of the extensometer snap instantly in place on the steel gage points glued to the test sample. The quick attachment is most advantageous when testing preconditioned samples that are heated or cooled, since the extensometers can be mounted before the sample changes temperature appreciably. For units intended to be used inside tri-axial cells, extensometers are available with modules rotated 90°.