Following two new equipments
have been procured for the Research In TITE
1. Rolling Bottle Machine
2. PATTI (Pneumatic Adhesion Tensile Testing
Instrument)
1- Rolling
Bottle Machine
Rolling
Bottle Test
Purpose
Rolling Bottle Equipment is used for
determination of the affinity between aggregate
and bitumen. This equipment is procured in Jan
2013. The first phase of project on this equipment
has been completed in July 2013. The second phase
of project is still in progress. The research
work is being carried out by Full time Scholar
Muhammad Usman Farooqi (2k12-FT-MSc-Trans-09)
supervised by Dr Naveed Ahmad, Assistant Professor,
CED.
Standard
British Standard BS EN 12697-11:2005
Apparatus
1. Sieves –size 6.3mm and 8mm.
2. Constant Temperature Oven–capable of
maintaining any temperature between 60 and 149
ºC within ±1 ºC .
3. Balance - capacity not less than 600 g, accurate
to ± 0.1 g.
4. Mixing bowl – for mixing aggregate and
binder.
5. Silicone coated paper or a flat metal lid -
for storage of coated aggregate particles as individual,
loose particles when cooling down after mixing.
6. Bottle rolling machine
Rolling Bottle Test
The European Standard specifies procedures for
the determination of the affinity between aggregate
and bitumen and its influence on the susceptibility
of the combination to stripping. This property
is intended to be of assistance to the designer
for mixture design rather than as a type test.
Susceptibility to stripping, as determined by
these procedures, is an indirect measure of the
power of a binder to adhere to various aggregates,
or of various binders to adhere to a given aggregate.
The procedures can also be used to evaluate the
effect of moisture on a given aggregate-binder
combination with or without adhesion agents including
liquids, such as amines, and fillers, such as
hydrated lime or cement. In the rolling bottle
method, the affinity is expressed by visual registration
of the degree of bitumen coverage on uncompacted
bitumen-coated mineral aggregate particles after
influence of mechanical stirring action in the
presence of water.
NOTE 1 The rolling bottle test
is a simple but subjective test and suitable for
routine testing. It is not appropriate for aggregates
that are highly abrasive. In the static test method,
the affinity is expressed by visual registration
of the degree of bitumen coverage on uncompacted
bitumen-coated mineral aggregate particles after
storage in water.
NOTE 2 The static test is a
simple, though subjective test that is generally
less precise, but that can cope with high PSV-aggregates.
In the boiling water stripping test method, the
affinity is expressed by determining the degree
of bitumen-coverage on uncompacted bitumen-coated
aggregate after immersion in boiling water under
specified conditions.
NOTE 3 The boiling water stripping
test is an objective test and has a high precision.
However, it is a more specialist test because
it requires greater skill of the operatives and
uses chemicals as reagent. The latter point may
also imply extra health and safety considerations.
NOTE 4 The boiling water stripping
test procedure .
2- PATTI
(Pneumatic Adhesion Tensile Testing Instrument)
PATTI® applications include:
• The self-aligning PATTI®QUANTUM quantitatively
measures the adhesion strength of numerous coatings,
including: paints, polymers, ceramics, inks, films,
adhesives, and thermal or arc-sprayed metals.
• Laboratory or field use.
• The test surface can be smooth, rough,
porous, flat or curved (please contact us for
application specific solutions). Custom-machined
pull-stubs are available at any size, either flat
or with a radius to match curved surfaces.
• The PATTI® can also be used to test
the strength of adhesives under non-room environmental
conditions from 32-212 degrees Fahrenheit (0-100
degrees Celsius).
The latest in adhesion testing technology,
the PATTI® QUANTUM GOLD boasts numerous cutting-edge
features including:
• Wireless real-time transmission of pull-tests
via Bluetooth and the included netbook (may also
communicate via USB)
• A LabVIEW®-created software package
developed specifically for the PATTI® QUANTUM
GOLD - eliminates the need for charts! Pre-installed
on the included netbook
• Computer generated reporting capabilities
in HTML - suitable for immediate posting on your
server to share pull-test results around the world
instantly
• USB camera attachment and associated
software to photo document your pulls
• And of course, the same quality and
reliability you have come to expect from the PATTI®!
PATTI® QUANTUM features include:
The same quality which is expected from the PATTI®
system, but this model is better than all other
existing models
• Powder-Coated box is much more robust
than previous PATTI®'s – will maintain
its aesthetic value
• New regulator eliminates the internal
pop valve, allowing for use of entire air cartridge
• New air cartridge capacity is twice
that of other PATTI® models
• Simplified design requires fewer internal
parts and reduces the frequency of maintenance
/ repair
• With the exception of the new, higher
capacity CO2 Cartridge, can use the same pistons,
pull-stubs and supplies as previous PATTI®'s
• The reduced number of internal parts
makes the PATTI® QUANTUM lighter than other
PATTI®'s and more portable than ever
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PATTI Quantum Gold Machine |
|
|
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Pullout stub Dimensions
in mm. |
A prepared base plate
loaded with stubs on top |
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Screen shot of PATTI
Quantum Gold Software |
