Proceq Schmidt Type L – Concrete Hammer Test
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DIFFERENCE Type N & L :
Type N: Standard impact energy. Minimum thickness of test object: 100 mm (3.9”’) and should be firmly fixed in the structure
Type L: Low impact energy. Suitable for brittle objects or structures less than 100 mm (3.9”’) thick.
original Schmidt hammer, type L is the ideal option for testing thin walled items with a thickness between 50 to 100 mm (2”” and 4”’) or for analyzing small components. It is also suitable for examining cast stone components which are sensitive to impact. In rock mechanics, the type L Original Schmidt is commonly used for the classification of rock cores and brittle rock.
Type L Hammer is a portable and relatively inexpensive nstrument for measuring the surface hardness of rock. The hammer can be used efficiently in both the laboratory and the field.
Mechanism of operation is simple: a hammer released by a spring, indirectly impacts against the rock surface through a plunger and the rebound distance of the hammer is then read directly from the scale ranging from 10 to 70 MPa (1,450 to 10,152 psi).
Type L hammer is used on NX or larger core specimens or block specimens having an edge length of at least 6 cm. TC-3040 Calibration Anvil, manufactured from a special steel alloy, is used for the calibration of test hammers.
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Proceq Schmidt Type L – Concrete Hammer Test
DIFFERENCE Type N & L :
Type N: Standard impact energy. Minimum thickness of test object: 100 mm (3.9”’) and should be firmly fixed in the structure
Type L: Low impact energy. Suitable for brittle objects or structures less than 100 mm (3.9”’) thick.
original Schmidt hammer, type L is the ideal option for testing thin walled items with a thickness between 50 to 100 mm (2”” and 4”’) or for analyzing small components. It is also suitable for examining cast stone components which are sensitive to impact. In rock mechanics, the type L Original Schmidt is commonly used for the classification of rock cores and brittle rock.
Type L Hammer is a portable and relatively inexpensive nstrument for measuring the surface hardness of rock. The hammer can be used efficiently in both the laboratory and the field.
Mechanism of operation is simple: a hammer released by a spring, indirectly impacts against the rock surface through a plunger and the rebound distance of the hammer is then read directly from the scale ranging from 10 to 70 MPa (1,450 to 10,152 psi).
Type L hammer is used on NX or larger core specimens or block specimens having an edge length of at least 6 cm. TC-3040 Calibration Anvil, manufactured from a special steel alloy, is used for the calibration of test hammers.
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