Document details

Creep behavior of RC slabs strengthened NSM CFRP laminate strips under different environmental conditions

Author(s): Sena-Cruz, José ; Silva, Patrícia ; Fernandes, Pedro Miguel Gomes ; Azenha, Miguel ; Barros, Joaquim A. O. ; Sousa, Christoph Fernandes ; Teixeira, Tiago André Nunes

Date: 2013

Persistent ID: http://hdl.handle.net/1822/25390

Origin: RepositóriUM - Universidade do Minho

Project/scholarship: info:eu-repo/grantAgreement/FCT/5876-PPCDTI/112396/PT ;

Subject(s): Creep; NSM; Concrete; Aging tests


Description

With the aim of analyzing the long-term deformational performance of concrete elements flexurally strengthened with the near-surface mounted (NSM) technique, an experimental program has been launched using slab specimens submitted to sustained loads under the following environmental conditions: (i) 20ºC temperature and 55% relative humidity; (ii) immersed in water tank at 20ºC with 0% of chlorides; (iii) immersed in water tank at 20ºC with 2.5% of chlorides; (iv) submitted to wet/dry cycles at 20ºC with 2.5% of chlorides. The slabs are continuously monitored in terms of mid-span vertical deflection and strains (in concrete, CFRP laminate strip and steel reinforcements). The present paper summarizes the preliminary results obtained in this ongoing project.

Document Type Conference paper
Language English
Contributor(s) Universidade do Minho
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