kEWIL Concrete Test HammerUseful for non-destructive estimation of quality of concrete of a finished structure and its relative compressive strength. The instrument consists of a casing in which a hammer mass, special spring, hammer locking and release mechanism are housed. A spherical ended plunger projects at one end which, when pressed against the test surface, actuates the release mechanism of the hammer mass. It gives an impact on the plunger. The hammer mass rebounds after the impact and an indicator registers the amount of rebound on a linear scale. The compressive strength of the material can be computed from the calibration diagram supplied with each hammer. It gives results within +15% of actual compressive compressive strength.
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Jagmohan Jit Singh (Kartar Engineering Works [india] Pvt. Ltd.)
Aa/7 Street No. 4d Anand Parbat Indus. Area, New Rohtak Road, Delhi - 110005
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