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Concrete Test Hammer

Concrete Test Hammer
Concrete Test Hammers are ideal for fast, inexpensive, nondestructive estimations of in-place concrete strength. Hammer tests can help determine where test cores should be taken and locate damage from freezing or fire. Useful range covers concrete strengths from approximately 1,400—8,000psi (10—55mPa). The plunger rod is pressed against a concrete surface until a spring-loaded mass is released, causing an impact on the concrete. Rebound of the mass is registered on the hammer as the “rebound number”. Included calibration curves provide estimated strength from rebound number, but accuracy is greatly improved by user-produced laboratory correlations with compression tests on the same type of concrete being evaluated.

Schmidt Concrete Test Hammer is supplied with a plastic carrying case, charts, instructions, and carborundum stone for surface preparation.

Concrete Test Hammer Calibration Anvil can be used to check the calibration of concrete test hammers after every 1,000—2,000 impacts.