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| RESEARCH PROJECTS |
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Project Title: |
CUTINSHEAR - Performance assessment of an
innovative structural FRP strengthening technique using
an integrated system based on optical fibre sensors |
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Reference no.: |
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Financing institution: |
Portuguese Foundation for science and technique |
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Promoting institution: |
University of Minho |
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Partners: |
INESC Porto |
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Period: |
March 2005 to March 2007 |
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Objectives: |
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Develop a novel shear strengthening technique using
laminates of CFRP, which, in comparison to the
existent CFRP-based shear strengthening techniques,
is simpler and faster to apply and is more efficacy
in terms of provide higher increase of beam load
carrying capacity and deflection at beam ultimate
load
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Develop equipment for saw-cutting the slits where
the CFRP laminates will be bonded by epoxy adhesive.
This equipment should allow cutting slits of
regulated width and deepness, and desired longitude
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Develop a unit control and acquisition system for
measuring the strains in the CFRP laminates using
optical fibers. These sensors will introduce
marginal interference in the CFRP-concrete bond
conditions. This device will be implemented into a
servo-loop system to assure stable tests,
controlling the test by the signal registered in the
optical fiber sensors
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Develop design guidelines for this shear
strengthening technique
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Project Title: |
FICOFIRE - High performance fiber reinforced
concrete of enhanced fire resistance |
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Reference no.: |
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Financing institution: |
Portuguese Foundation for science and technique |
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Promoting institution: |
University of Minho |
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Partners: |
University of Coimbra |
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Period: |
March 2005 to March 2007 |
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Objectives: |
Develop a Fibrous Concrete of 50-70 MPa compression
strength, of Enhanced Fire Resistance and high ductility
(FRCEFR). Distinct types of fibers will be used. One
type has very low degree of polymerization, which in
presence of a very high temperature will sublime.
Cellulose fibers with fire retardants products which, in
presence of very high temperature, will be transformed,
by pyrolise, into carbon, shrinking, is an alternative
solution. Both types of fibers, under the action of fire
will create a network of micro channels for the escape
of the water vapor. These types of fibers have also the
purpose of decrease the crack propagation during the
concrete plastic shrinkage phase. The other type of
fiber has the purpose of providing high ductility for
the concrete post-cracking behavior. For the alveolar
concrete slab application the FRCEFR has also the
purpose of being possible the production of slabs of
larger span and thickness without the use of steel
stirrups. In the swells for tunnel application, the
FRCEFR should replace totally the conventional
reinforcement. |
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Project Title: |
Cost competitive steel fibre reinforced concrete
for industrial pavements |
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Reference no.: |
34793/99 |
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Financing institution: |
Programa operacional Ciência, Tecnologia, Inovação (POCTI) |
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Promoting institution: |
University of Minho |
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Partners: |
CiviTest -
Pesquisa de novos materiais para a Engenharia Civil,
Lda.
Pisonort -
Pavimentos Industrias, Lda. |
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Period: |
September 2000 to September 2003 |
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Objectives: |
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Develop a cost
competitive steel fiber reinforced concrete (SFRC)
for industrial pavement applications
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Characterize the
concrete and the bending behavior of SFRC by
experimental tests
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Cost analysis of
traditional and SFRC solutions
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Assess the structural
behavior by tests in real scale
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Develop numerical models
to analyze SFRC industrial pavements and setup
design guidelines for this application
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Project Title: |
PABERFIA - Painéis sandwich prefabricados de
betão reforçado com fibras |
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Reference no.: |
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Financing
institution: |
Supported under the operational programs of science,
technology, innovation - POCTI, by Society of
information (POSI), FEDER and MCT |
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Promoting institution: |
PréGaia SA |
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Partners: |
CiviTest - Pesquisa de novos materiais para a
Engenharia Civil, Lda. |
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Period: |
January 2003 to July 2005 |
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Objectives: |
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Develop rational
strategies to design self compacting steel fiber
reinforced concrete (SCSFRC) for applications in
prefabricated elements
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Assess the durability of
the SCSFRC by experimental tests
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Characterize the
mechanical behavior of the SCSFRC by experimental
tests
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Develop a manufacture
system based on the prefabrication techniques, for
producing lightweight panel elements of adjusted
ductility, stiffness and strength for the demands of
the real application
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By experimental tests,
assess the behavior of the panels when submitted to
the main load cases
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Develop numerical
strategies to simulate the panel behavior up to its
failure
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| RESEARCH FACILITIES |
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