Monotonically Increasing Compressive And
Creep Tests On Concrete Cylinders Retrofitted By Carbon Cloth
Author(s)
K. Verok,J . L. Clement, F. Le Maou & C. Boulay
Abstract
One of the still open problem relating to the reinforcement and or the repairing of reinforced or prestressed concrete structures is the durability (held in time) of the composites applied to the structural elements.
At the LCPC a four years long research operation has begun in January 2000 relating to the use of carbon fibre fabrics for strengthening and repairing structures. One of the objectives of this operation is to answer the preceding interrogation. With this intention, an exploratory experimental campaign was also launched with these following tasks, which will be successively presented:
- creep tests on concrete specimens,
- monotonically increasing compressive load (static) tests on retrofitted concrete cylinders with modelling their properties,
- same tests on retrofitted concrete cylinders cut up from the specimen after two
years of long term creep and shrinkage tests.
We have creep results, which have to be compared with the reference and we compare the static tests carried out after two years of long term load with those who were carried out initially on virgin concrete.
Keywords
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