A Schmidt hammer/Swiss hammer/rebound hammer invented by Ernst Schmidt in 1948, a Swiss engineer, is a mechanical device used to measure surface hardness and penetration resistance strength of concrete or rock.
civil Rebar Locater
Rebar locater is the device which is used to find the proximity as well as orientation of reinforcement steel path in concrete surface. The instrument mainly consists of a cover meter. It may be battery operated or mains operated. This meter consists of an electronic meter and an interconnecting cable. These meters can be either works based on the principle of eddy current effect or by electromagnetic induction. Instrument work based on eddy current will be more sensitive.
Civil Engineering [Ulta Sonic Pulse velocity testing
The video explains in details about Ultra Sonic Pulse velocity testing equipment, a qualitative testing method performed in QA/QC civil engineering discipline. Ultra Sonic Pulse velocity testing is used to find interior hardness of concrete surface and is mainly used for crack filling by epoxy injection. Ultra Sonic Pulse velocity testing apparatus consists of a concrete tester device which displays the time in micro seconds, a transducer, a transmitter and a receiver probe. We are using a calibration rod to calibrate the particular instrument.