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TWO POINT TRAPEZOIDAL
BENDING BEAM MACHINE
Optimisation
of
the
setting-up
time
with
intelligent
software,
and
accurate temperature control with an integrated temperature cabinet
Bending
tests
are
widely
used
for
measuring
the
stiffness
modulus
and
assessing
the
fatigue
resistance
of
asphaltic
paving
materials.
The
two-point
bending
test
on
trapezoidal
specimens
is,
arguably,
the
most
repeatable
and
reproducible
bending
test
method
detailed
in
the
relevant
EN12697
standards.
In
this
test
the
specimen
is
mounted
as
a
vertical
cantilever.
The
base
is
fixed
and
the
top
is
moved
sinusoidally
with
a
constant
displacement
amplitude.
The
trapezoidal
shape
ensures
that
the
maximum
values
of
bending
stress
and
strain
occur
away
from
the
ends
of
the
specimen
where
there are likely to be stress concentrations.
With
the
Cooper
Technology
equipment,
two
trapezoidal
specimens
can
be
tested
simultaneously
and
stiffness
modulus
can
be
determined
at
a
range
of
frequencies
and
temperatures.
In
the
fatigue
test
the
specimens
are
subjected
to
a
constant
strain
amplitude
at
a
selected
frequency
and
temperature
until
the
stiffness
modulus
decreases
to
a
user-selected
target
level (normally 50 percent of its initial value).
KEY FEATURES
•
Rigid test frame housed within temperature cabinet
•
Temperature cabinet with fan assisted air circulation and glazed viewing door
•
Temperature cabinet range -20 to 30°C
•
Machine designed to test two or four specimens simultaneously (Optional add-on for 4 specimens available)
•
Frequency range from 0.5 to 30Hz
•
Precise manual setting of strain amplitude
•
Accurate pre-test displacement transducer adjustment using software feedback
•
Two high-precision ±2.5kN fatigue rated piezoelectric force transducers
•
High-speed control and acquisition system for interfacing to host computer
•
User-friendly software for fatigue and stiffness modulus tests
•
Software for automatically carrying out frequency and temperature sweeps to save operator’s time & easy of use
•
Supplied with certification of calibration
KEY USES
•
Mixture design
•
End product specification
•
Assessment of new materials
Software
•
User friendly, intuitive and reliable Windows™ software developed using LabVIEW™
•
Specifically written to meet EN 12697-24 Annex A and EN 12697-26 Annex A
•
One software package performs both fatigue and complex modulus testing
•
The software allows a range of strain amplitudes and frequencies to be tested
•
The operator is guided through setting up the samples and performing the test
•
Real-time graphs show the force and the deformation as well as the relationship between rigidity and number of cycles
•
Software automatically performs frequency and temperature sweeps to save operator’s time & easy of use
•
Stored test data can be analysed and compared with other test data utilising a spreadsheet package
•
Utilities are included for transducer check, diagnostic routines and calibration
STANDARDS
EN 12697-24 Annex A
EN 12697-26 Annex A
NF-P98-260-2
ACCESSORIES
Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.
Add-on for 4 Trapezoidal Beams to be
tested simultaneously
CRT-2PT-4SPEC
Pair of end caps for 25mm Specimens
CRT-2PT-CAPEND25
Pair of end caps for 50mm Specimens
inc. parts for gluing frame
CRT-2PT-CAPEND50
Trapezoidal Beam Gluing Frame
CRT-2PT-GLUE
Extra Parts for 2PT Gluing 50mm
Specimens
CRT-2PT-GLUE-50
Trapezoidal Beam Measuring Frame
CRT-2PT-MEAS
2PT Additional Temperature Probe
CRT-2PT-TEMP
SPECIFICATIONS
Force Transducer (kN)
2 x 2.5kN Miniature fatigue rated
Specimen Transducer Range (mm)
±1mm
Frequency (Hz)
0.5 to 30Hz
PC
Included
MACHINE SPECIFICATION
Weight (Kg)
800Kg
Dimensions (mm) (W x D x H)
1320 x 1360 x 1950mm
WEIGHT & DIMENSIONS
Electrical Supply
*
220-240 Volts 50 Hz @ 32A
* Other electrical supplies available on request
ELECTRICAL SPECIFICATION
Calibration,
Annual
Service
and
Maintenance
Contracts
are
available for this device.
Please enquire for further details.
Note
This device should be checked and calibrated annually.
CALIBRATION & MAINTENANCE
Temperature (°C) (Integral Cabinet)
-20 to 30°C
TEMPERATURE
The content of this website, including but not limited to text, graphics, images, logos, and software, is the property of Cooper Research
Technology or its content suppliers and is protected by international copyright laws. Unauthorized use, reproduction, distribution, or
modification of any material on this site is strictly prohibited without prior written consent from Cooper Research Technology.
All trademarks, product names, and company names or logos cited herein are the property of their respective owners.
© Cooper Research Technology. All rights reserved.
QUALITY ASSURANCE
OUR CUSTOMERS
TWO POINT TRAPEZOIDAL
BENDING BEAM MACHINE
Optimisation
of
the
setting-up
time
with
intelligent
software,
and
accurate
temperature
control
with
an
integrated
temperature
cabinet
Bending
tests
are
widely
used
for
measuring
the
stiffness
modulus
and
assessing
the
fatigue
resistance
of
asphaltic
paving
materials.
The
two-point
bending
test
on
trapezoidal
specimens
is,
arguably,
the
most
repeatable
and
reproducible
bending
test
method
detailed
in
the
relevant
EN12697
standards.
In
this
test
the
specimen
is
mounted
as
a
vertical
cantilever.
The
base
is
fixed
and
the
top
is
moved
sinusoidally
with
a
constant
displacement
amplitude.
The
trapezoidal
shape
ensures
that
the
maximum
values
of
bending
stress
and
strain
occur
away
from
the
ends
of
the
specimen
where
there
are
likely
to
be
stress concentrations.
With
the
Cooper
Technology
equipment,
two
trapezoidal
specimens
can
be
tested
simultaneously
and
stiffness
modulus
can
be
determined
at
a
range
of
frequencies
and
temperatures.
In
the
fatigue
test
the
specimens
are
subjected
to
a
constant
strain
amplitude
at
a
selected
frequency
and
temperature
until
the
stiffness
modulus
decreases
to
a
user-selected
target
level
(normally
50
percent
of
its
initial value).
KEY FEATURES
•
Rigid test frame housed within temperature cabinet
•
Temperature
cabinet
with
fan
assisted
air
circulation
and
glazed
viewing door
•
Temperature cabinet range -20 to 30°C
•
Machine
designed
to
test
two
or
four
specimens
simultaneously
(Optional add-on for 4 specimens available)
•
Frequency range from 0.5 to 30Hz
•
Precise manual setting of strain amplitude
•
Accurate
pre-test
displacement
transducer
adjustment
using
software feedback
•
Two
high-precision
±2.5kN
fatigue
rated
piezoelectric
force
transducers
•
High-speed
control
and
acquisition
system
for
interfacing
to
host computer
•
User-friendly software for fatigue and stiffness modulus tests
•
Software
for
automatically
carrying
out
frequency
and
temperature sweeps to save operator’s time & easy of use
•
Supplied with certification of calibration
KEY USES
•
Mixture design
•
End product specification
•
Assessment of new materials
Software
•
User
friendly,
intuitive
and
reliable
Windows™
software
developed using LabVIEW™
•
Specifically
written
to
meet
EN
12697-24
Annex
A
and
EN
12697-
26 Annex A
•
One
software
package
performs
both
fatigue
and
complex
modulus testing
•
The
software
allows
a
range
of
strain
amplitudes
and
frequencies to be tested
•
The
operator
is
guided
through
setting
up
the
samples
and
performing the test
•
Real-time
graphs
show
the
force
and
the
deformation
as
well
as
the relationship between rigidity and number of cycles
•
Software
automatically
performs
frequency
and
temperature
sweeps to save operator’s time & easy of use
•
Stored
test
data
can
be
analysed
and
compared
with
other
test
data utilising a spreadsheet package
•
Utilities
are
included
for
transducer
check,
diagnostic
routines
and calibration
The content of this website, including but not limited to text, graphics, images,
logos, and software, is the property of Cooper Research Technology or its content
suppliers and is protected by international copyright laws. Unauthorized use,
reproduction, distribution, or modification of any material on this site is strictly
prohibited without prior written consent from Cooper Research Technology.
All trademarks, product names, and company names or logos cited herein are the
property of their respective owners.
© Cooper Research Technology. All rights reserved.
QUALITY ASSURANCE
OUR CUSTOMERS
BITUMEN LABORATORY TESTING
BITUMEN AGING
UNIVERSAL MATERIAL TESTING
FRENCH MIX DESIGN (EME)
UNBOUND MATERIALS TESTING
WHEEL TRACKING
LOW TEMPERATURE TESTING
BALANCE MIX DESIGN
ASPHALT COMPACTION
BENDING BEAM TESTING
SPECIMEN CUTTING AND PREPARATION
ROAD QUALITY TESTING/SLIP RESISTANCE
