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Concrete Test
Hammer
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The concrete test hammer was
developed by Ernst O. Schmidt and introduced by Proceq at
the
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beginning of the 1950s. It is without a doubt the most widely
used NDT measuring instrument for a
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rapid assessment of the condition of a concrete structure.
Its application has extended over the
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years to rock testing and paper roll hardness testing. The
latest edition to the hammer family is the
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SilverSchmidt - the most advanced rebound hammer available.
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Original Schmidt N/L
Series
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The benchmark against which all
rebound hammers are compared and the basis of every international
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rebound hammer standard. Available with different impact
energies to allow customers to test a wide
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variety of materials and types of structure.
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Original Schmidt Type
N/L
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Measuring range 10 to 70 MPa (1,450
to 10,152 psi). The rebound value is read directly from the
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scale. Typical applications are uniformity testing,
identification of areas of poor concrete quality and
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compressive strength estimation. The type L Original Schmidt is
the ideal option for testing thin walled
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items with a thickness between 50 to 100 mm (2 in. and 4
in.) or for analyzing small components. It is
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also suitable for examining cast stone components which
are sensitive to impact. In rock mechanics,
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the type L Original Schmidt is commonly used for the
classification of rock cores and brittle rock.
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Type N
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Standard impact energy 2.207 Nm
(1.63 lb ft). The test
object should have a min. thickness of
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100 mm (3.9 in.) and be firmly
fixed in the structure.
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Type L
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Low impact energy 0.735 Nm (0.54 lb ft). For brittle objects and
structural units less than 100 mm
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(3.9 in.) thick.
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Anvil
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All major standards recommend to
check the correct calibration of a Schmidt hammer on an anvil
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prior to testing. Proceq anvils
are fully compliant with EN 12504-2.
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Ordering Information
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Units Schmidt Hammers
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Part No.
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Description
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310 01 001
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Original Schmidt Type N
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310 02 000
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Original Schmidt Type NR
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310 03 002
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Original Schmidt Type L
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310 04 000
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Original Schmidt Type LR
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340 00 202
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Digi-Schmidt ND
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340 00 211
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Digi-Schmidt LD
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