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ASPHALT ROLLING THIN FILM OVEN
ACCURATE BINDER HEAT AND AIR SIMULATION
The
RTFO
accurately
simulates
the
short
term
aging
of
asphalt
binder
which occurs during mixing.
The
Superpave
PG
binder
specification
looked
for
tests
which
would
closely
simulate
field
performance.
Hotmix
asphalt
binder
experiences
significant
aging
during
the
manufacturing
and
laying
process.
Investigating
this
phenomenon
within
a
laboratory
environment,
with
a
repeatable
and
simple
test is very useful within the design process.
The
Rolling
Thin
Film
Oven
(RTFO)
test
is
used
to
measure
the
effect
of
heat
and
air
on
a
moving
film
of
semi-solid
asphalt
binder.
The
results
of
this
treatment
are
determined
from
measurements
of
the
binder
properties
before
and
after
the
test.
Repeatability
of
the
test
is
directly
related
to
the
accuracy
with
which
the
oven
temperature
can
be
maintained
and
the
reproducibility
of
the
thermal
rise
time
of
the
system.
The
invention
of
RTFO
by
James
Cox
&
Sons
led
to
the
present
day
AASHTO,
ASTM
and
EN
standards for Rolling Thin Film Oven test (RTFOT).
Construction
Double-walled construction
16-gauge welded steel exterior
18-gauge corrosion resistant stainless steel interior
Insulation (mm)
89mm of high density fiberglass insulation
Controller
Programmable microprocessor UL listed
Vents
Double
exhaust
vents
for
dissipation
of
expended
volatile
from specimen
Air Flow Adjustment
Needle valve (long taper)
Air Pressure Gauge (psi)
Range 0–100 psi
KEY FEATURES
•
Super accurate P.I.D. controller
•
Low thermal mass RTD
•
Over temperature safety cut-out
•
Double walled temperature cabinet
•
Unique temperature control suppression
SYSTEM ELEMENTS
•
Long life sustainable bearings to overcome temperature fluctuation
•
Integrated unique controller which allows for the quickest response time without excessive overshoot
•
Testing jars (full set) supplied according to standard requirements
•
Stainless steel interior
•
Integral dual 4 digit LED displays allows viewing of the process temperature and set point simultaneously
•
Heavy duty “flush fit” door locking system
STANDARDS
EN 12591
MACHINE SPECIFICATION
Weight (Kg)
173Kg
Dimensions (mm) (W x D x H)
1016 x 660 x 915mm
WEIGHT & DIMENSIONS
ACCESSORIES
Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.
Glass Sample Container for CRT-OV-RTFs
CRT-OV-RTF-GSC
High Temperature Gloves
CRT-OV-RTF-GL
Dry air system
CRT-OV-RTF-DAS
SPECIFICATIONS
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
Digital Flowmeter, Panel Mount
CRT-OV-RTF-DFM
Silica Gel (1.5 lb can)
CRT-OV-RTF-SG
Jar Cooling Rack
CRT-OV-RTF-JAR
Bottle Scrapper
CRT-OV-RTF-BS
Lab Stand
CRT-OV-RTF-STAND
ASTM D2872
AASHTO T240
CTM 346
Temperature Display
Measured Temperature – 4 digit red LEDs
Temperature Set Point – 4 digit green LEDs
Thermal Protection
Prevents oven from overheating in the event of control failure
Temperature Range (°C)
Ambient to 200°C
TEMPERATURE
ASPHALT ROLLING THIN FILM OVEN
ACCURATE BINDER HEAT AND AIR SIMULATION
The
RTFO
accurately
simulates
the
short
term
aging
of
asphalt
binder which occurs during mixing.
The
Superpave
PG
binder
specification
looked
for
tests
which
would
closely
simulate
field
performance.
Hotmix
asphalt
binder
experiences
significant
aging
during
the
manufacturing
and
laying
process.
Investigating
this
phenomenon
within
a
laboratory
environment,
with
a repeatable and simple test is very useful within the design process.
The
Rolling
Thin
Film
Oven
(RTFO)
test
is
used
to
measure
the
effect
of
heat
and
air
on
a
moving
film
of
semi-solid
asphalt
binder.
The
results
of
this
treatment
are
determined
from
measurements
of
the
binder
properties
before
and
after
the
test.
Repeatability
of
the
test
is
directly
related
to
the
accuracy
with
which
the
oven
temperature
can
be
maintained
and
the
reproducibility
of
the
thermal
rise
time
of
the
system.
The
invention
of
RTFO
by
James
Cox
&
Sons
led
to
the
present
day
AASHTO,
ASTM
and
EN
standards
for
Rolling
Thin
Film
Oven
test
(RTFOT).
KEY FEATURES
•
Super accurate P.I.D. controller
•
Low thermal mass RTD
•
Over temperature safety cut-out
•
Double walled temperature cabinet
•
Unique temperature control suppression
SYSTEM ELEMENTS
•
Long
life
sustainable
bearings
to
overcome
temperature
fluctuation
•
Integrated
unique
controller
which
allows
for
the
quickest
response time without excessive overshoot
•
Testing
jars
(full
set)
supplied
according
to
standard
requirements
•
Stainless steel interior
•
Integral
dual
4
digit
LED
displays
allows
viewing
of
the
process
temperature and set point simultaneously
•
Heavy duty “flush fit” door locking system
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
