CONFRONTATION OF TEXTILE REINFORCED CONCRETE (TRC) WITH CARBON AND STAINLESS STEEL GRIDS FOR STRENGTHENING OF MASONRY

Author(s): R. Contamine, J.P. Plassiard and P. Perrotin
Book Title: FERRO-11 – 11th International Symposium on Ferrocement and 3rd ICTRC - International Conference on Textile Reinforced Concrete
Editor: Wolfgang Brameshuber
Print-ISBN: 978-2-35158-152-0
e-ISBN: 978-2-35158-153-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 445-452
Total Pages: 8
Language: English

Abstract: A significant need for strengthening techniques of existing masonry structures is emerging. In response, the bonding of textile reinforced concrete (TRC) has been developed during recent years. To investigate the influence of the nature of the textile reinforcement, pull-out test between the TRC and the masonry has been developed. Tow natures of textile reinforcement grids were tested: carbon and stainless steel. For all the fifteen specimens tested the displacement fields are measured by digital image correlation. This experiment showed that strengthening of masonry structures by contact moulding of TRC with stainless steel grids directly on the masonry is technologically feasible. The results show a different post-peak behaviour of the force – displacement curves: ductile for stainless steel TRC and brittle for carbon TRC. This different behaviour is not only related to the ductile behaviour of the stainless steel but also to a difference in the failure mode between the stainless steel TRC and the carbon TRC. The stainless steel TRC showed a failure mode by progressive delamination. It has the major benefits to be detectable with the naked eye (allowing a simplified assessment of damages in the event of accidental stress) and to allow high energy dissipation.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00