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Concrete Test Hammer – SilverSchmidt
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The SilverSchmidt
ST/PC is the first integrated concrete test hammer featuring
true rebound value
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and unmatched repeatability.
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Two factors contribute to the improved
performance of this concrete test hammer over its predecessors:
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 Velocity
based detection of the rebound quotient
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The
lightweight hybrid design of the impact plunger is made from aerospace alloy,
matched to the
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elastic properties of
the concrete and equipped with a hardness steel cap
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Independent validation testing by BAM
(Federal Institute for Materials Research and Testing, Germany)
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has shown the SilverSchmidt
ST/PC to have less dispersion than the classical concrete test hammer
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over the entire range.
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The unique design and high quality
construction of the concrete test hammer SilverSchmidt
ST/PC makes
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rebound hammer testing quicker and more accurate than ever before.
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Features
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The SilverSchmidt ST/PC concrete test hammer combines a high measurement accuracy with an unmatched
repeatability.
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The
rebound value requires no angular correction
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The
concrete test hammer offers customer conversion curves for a wide range of
compressive
concrete
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strengths, including low fc (<10
N/mm2, 1’450 psi) and high strength concrete (up to 100 N/mm2,
14’500 psi)
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A large
number of measurement points can be easily collected by the concrete test
hammer and
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automatically evaluated according to statistical data
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The
concrete test hammer offers automatic conversion to the required measurement
unit (MPa, N/mm2, kg/cm2,
psi)
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Applications
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Ideally
suited for on-site tests of concrete
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The
concrete test hammer is suitable for testing a wide variety of concrete,
mortar and rock
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Handy
for difficult to access or confined test areas (i.e. working overhead)
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Assessment
on young, soft concrete with mushroom plunger of the concrete test hammer
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Units
Consist of:
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SilverSchmidt hammer, standard accessories
(battery charger with USB cable, data carrier with software, carrying strap,
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grinding stone, chalk,
documentation) and carrying bag.
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Technical
Information SilverSchmidt
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Mechanical
Data
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Type
N
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Type
L
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Impact
energy
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2.207
Nm (1.63 lb ft)
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0.735
Nm (0.54 lb ft)
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Concrete
Compressive Strength Range
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10-100 N/mm2
(1450-14500 psi)
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Hammer
mass
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135 g
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Spring
extension
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2.95” (75 mm)
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Dimensions
of housing
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2.16” x 2.16” x
9.84” (55 x 55 x 255 mm)
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Weight
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1.3 lb (570 g)
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Memory
Data
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Max.
No. of impacts in series
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90
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Memory
capacity
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Dependent on
length of test series
Example >400
series with 10 values per series
Example >200
series with 20 values per series
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Electrical
Data
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Display
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17 x 71 pixel,
graphic
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Battery
life
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>5000
impacts between changes
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Charger
connection
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USB type B (4 V,
100 mA)
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Environmental
conditions
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Operating
temperature
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32 to 122ðF
(0 to 50ðC)
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Storage
temperature
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14 to 158ðF
(-10 to 70ðC)
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Silver
Schmidt Models
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ST Standard model.
Software provided for performing firmware upgrades and selecting presets
only.
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PC
Extended
memory usage. Custom curves. Download to PC. Full Hammerlink
Software functionality.
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N-Type standard
impact energy. The test object should have a min. thickness of 100 mm and be
firmly fixed
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in the structure.
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L-Type low impact
energy. Suitable for brittle objects or structures less than 100 mm thick.
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