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Concrete Test Hammer
This Concrete Test Hammeris 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—8,000 psi (10—55mPa).
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. Plastic case and rubbing stone included.
Conforms to ASTM C805