Ambient temperature performance of cementitious matrices for fire-safe NSM FRP strengthening of concrete structures
| Autor: | Antonio Bilotta, Iolanda Del Prete, Luke Bisby, Emidio Nigro |
|---|---|
| Přispěvatelé: | Del Prete, I., Bilotta, A., Bisby, L., Nigro, E. |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Epoxy adhesive
Materials science Bond test Cementitious adhesives Bar (music) 0211 other engineering and technologies 02 engineering and technology engineering.material Materials Science(all) 021105 building & construction medicine General Materials Science Bond tests Composite material NSM Groove (engineering) Civil and Structural Engineering Cementitious adhesive Grout Stiffness Epoxy adhesives Epoxy Building and Construction Fibre-reinforced plastic 021001 nanoscience & nanotechnology visual_art engineering visual_art.visual_art_medium Strengthening Adhesive Cementitious medicine.symptom 0210 nano-technology FRP |
| Zdroj: | Del Prete, I, Bilotta, A, Bisby, L & Nigro, E 2018, ' Ambient temperature performance of cementitious matrices for fire-safe NSM FRP strengthening of concrete structures ', Construction and Building Materials, vol. 193, CONBUILDMAT-D-17-04735, pp. 42-54 . https://doi.org/10.1016/j.conbuildmat.2018.10.174 |
| DOI: | 10.1016/j.conbuildmat.2018.10.174 |
| Popis: | The near surface mounted (NSM) fiber reinforced polymer (FRP) strengthening technique is a demonstrated, attractive and efficient alternative to externally bonded reinforcement (EBR) strengthening systems. NSM strengthening can be used to enhance the stiffness and the strength of deficient reinforced concrete members, with high utilisation of the FRP’s mechanical properties (at ambient temperature) when epoxy is used as bonding agent. However, owing to epoxy adhesives’ sensitivity to elevated temperature exposure, recent research has focused on the use of cementitious adhesives, which are less sensitive to elevated temperature, in NSM FRP applications. This paper presents results from 22 bond pull-out tests at ambient temperature on concrete prisms with an embedded carbon FRP bar NSM strengthening system. Different bonding agents (i.e. epoxy resin or cementitious grout), positions of the bar in the groove (i.e. in the centre or at the top of the groove), bar surface treatments (smooth and ribbed) and bond length (300 and 400 mm) are investigated. |
| Databáze: | OpenAIRE |
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