The new SilverSchmidt concrete test hammer offers a virtually
maintenance free, lightweight and compact construction. This next
generation tool combines an electronic display and advanced mechanics
with true rebound coefficient that automatically converts to compressive
strength.
Extended Range of Applications
• Conversion
curves are provided for a wide range of compressive concrete strength,
including low and high strength concrete fc <10 N/mm2 (1.450 psi) and
up to 170 N/mm2 (24.650 psi)
• Conversion curves for different types
of modern concrete are pre-set in the SilverSchmidt, based on tests
performed by an independent institution
Compliance with
Industry Standards
• Data collection and processing of test
results comply with major industry standards EN 12504-2, ENV 206, ASTM
C805, ASTM D5873 (Rock), BS 1881, part 202, JGJ/T 23-2001 (China)
Dependable
Measuring Results
• High accuracy due to differential
optical absolute velocity encoder
• Measurement inherently
independent of impact direction, meaning no corrections necessary
•
Built-in correction for carbonation and form factor gives increased test
accuracy and dependability of test results
• Registration of true
rebound coefficient yields extended resolution across a wider range
•
SilverSchmidt can also display the classic R-value
Controlled
and Extended Functionality
• Automatic control of
functionality by monitoring impact energy
• Low power consumption,
high capacity lithium-ion battery
• Tightly sealed instrument
providing a higher number of impacts without servicing
Applications
•
Suitable for testing a wide variety of concrete, mortar, rock, paper
and plastics
• Ideally suited for on-site testing
• Handy for
difficult to access or confined test areas (i.e. working overhead)
•
Especially convenient for testing on tunnel linings as measurements are
independent of impact direction
Operation
• Simple
operation with the one button user interface
• Language independent
through the use of graphic user interface
• Automatic conversion to
the required measurement unit (N/mm2, kg/cm2, psi),
• Various
statistics to comply with standards or user specified procedures
•
Custom pre-sets of test parameters for various testing scenarios can be
stored and later recalled
• Quick review of previous measurements
Determine
the Compressive Strength
To obtain a reading in units of
compressive strength select:
• Desired unit
• Length of series and
averaging mode
• Carbonation depth (if applicable)
• Conversion
curve for concrete mixture
• Form factor
Perform a test
series of specified length. Manual cancellation of obvious outliers is
possible. At the end of the series, the instrument will display the
average converted to the desired unit.
Features
- Measurement
inherently independent of impact direction, meaning no directional
corrections are necessary
- High measuring accuracy due to
differential optical absolute velocity encoder
- Conversion curves
for a wide range of compressive concrete strengths, including low fc
(<10 N/mm2, 1’450 psi) and high strength concrete (up to 170 N/mm2,
24’650 psi)
- Simple operation with one-button, combined with
advanced tilt and twist technology user interface
- Language
independent graphical menu with symbols
- Automatic conversion to
the required measurement unit (N/mm2, kg/cm2, psi)
Applications
- Suitable
for testing a wide variety of concrete, mortar and rock
- Ideally
suited for on-site testing
- Handy for difficult to access or
confined test areas (i.e. working overhead)
- Especially
convenient for testing on tunnel linings as measurements are independent
of impact direction
- Assessment on young, soft concrete with
mushroom plunger (to indicate when to remove forms or for formwork)
Product
Variations
- Type BN - Standard impact energy (2.207 Nm)
- Type
BL - Reduced impact energy (0.735 Nm)
Technical Data
| Mechanical
data | Type BN | Type BL |
| Impact energy | 2.207
Nm | 0.735 Nm |
| Hammer mass | 115 g | 115
g |
| Spring constant | 0.79 N/mm | 0.26 N/mm |
| Spring
extension | 75 mm | 75 mm |
| Housing
dimensions | 55 x 55 x 250 mm (340 mm to tip of plunger) |
| Plunger
dimensions (visible part) | 105 x ø15 mm / radius of spherical tip 25 mm |
| Weight | 600 g |
| Measuring
ranges | Type BN and Type BL |
| Concrete
compressive strength | BL : 5 N/mm2 to 110 N/mm2 (720 psi to
16'000 psi)
BN : 10 N/mm2 to 170 N/mm2 (1’450 psi to 24’650 psi)
BN
with mushroom plunger (optional): 2 - 30 N/mm2 (290 psi to 4'400 psi)
|
| Operating
temperature | 0 to 50 °C |
| Storage temperature | -10
to 70 °C |
Electrical
data
| Type BN and Type BL |
| Display | 17
x 71 pixels; graphic / alphanumeric |
| Power consumption | ~13
mA measuring, ~4 mA setup and review, ~0.02 mA idle |
| Charger
connection | USB type B (5V, 100 mA) |
Ordering
Information
CN659
SilverSchmidt BN (black cap with
impact energy of 2.207 Nm) includes:
SilverSchmidt BN with standard
accessories including USB kit (USB cable and USB charger global),
carrying strap, grinding stone, chalk, user manual, quick reference
guide, certificate and carrying case
CN658
SilverSchmidt
BL (silver cap with impact energy of 0.735 Nm) includes:
SilverSchmidt
BL with standard accessories including USB kit (USB cable and USB
charger global), carrying strap, grinding stone, chalk, templates, user
manual, quick reference guide, certificate and carrying case
Click to view a PDF file of the
User Guide
