TRM vs FRP jacketing in shear strengthening of concrete members subjected to high temperatures
By Z. Tetta, D. Bournas. 2016
171 citations recorded by the source corpus.
Abstract This paper presents the first study on the performance of TRM and FRP jacketing in shear strengthening of reinforced concrete (RC) members subjected to ambient and high temperatures, including both medium-scale rectangular beams and full-scale T-beams. Key parameters investigated on the medium-scale rectangular RC beams include: (a) the matrix used to impregnate the fibres, namely resin or mortar, resulting in two strengthening systems (TRM or FRP), (b) the level of high temperature to which the specimens are exposed (20 °C, 100 °C, 150 °C, 250 °C), (c) the strengthening configuration (side-bonding, U-wrapping and full-wrapping), (d) the number of jacketing layers (2 and 3) and (e) the textile properties (geometry, material). The effectiveness of both non-anchored and anchored TRM jackets in shear strengthening of full-scale T-beams at high temperature was also studied. It is concluded that TRM possess excellent performance as strengthening material at high temperature. TRM jacketing remained very effective in shear strengthening of concrete at high temperature; on the contrary the effectiveness of side-bonding and U-wrapping FRP jacketing was reduced nearly to zero when subjected at temperatures above the glass transition temperature.
Subfields: Building and Construction, Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/0de5366082c7ee057cb27972c339eccc1f6b9e09
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Citations in the corpus
- TRM versus FRP in flexural strengthening of RC beams: Behaviour at high temperatures (2017, unknown): “It worth mentioning that a reduction factor of 0.4 was proposed by Tetta and Bournas 2016 [35] for shear design of beams strengthened with TRM jacketing and exposed to high temperature up to 250 C. Finally, it is clear that more experimental data is required to suggest a design model taking into…”
- Textile-reinforced mortar (TRM) versus fibre-reinforced polymers (FRP) in flexural strengthening of RC beams (2017, background): “Several advantages of TRM are associated with the use of cement-based mortars including: resistance to high temperatures [5,6], low cost, ability to be applied in an environment of low temperatures or on a wet surface, permeability to water vapour, and compatibility with concrete substrates.”
- Bond between TRM versus FRP composites and concrete at high temperatures (2017, methodology): “E-mail addresses: Saad.Raoof@nottingahm.ac.u bournas@ec.europa.eu (D.A. Bournas). http://dx.doi.org/10.1016/j.compositesb.2017.05.064 1359-8368/© 2017 The Authors.”
- Bond between textile-reinforced mortar (TRM) and concrete substrates: Experimental investigation (2016, background): “TRM is relatively low-cost materials (mortars are generally lower cost compared to epoxy resins), compatible with concrete or masonry substrates, friendly materials for manual workers, can be applied at low temperatures or on wet surfaces, and resistant at high temperatures (Tetta and Bournas, 2016)”