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Today, using Fiber Reinforced Polymer (FRP) sheets is one of the conventional methods in retrofitting concrete structures. Some factors affecting FRP sheets proper performance include mechanical properties, surface specifications, connector’s material and connecting approach in concrete elements. Previous studies showed that FRP epoxy resin and its basic surface have a significant impact on the ultimate bearing capacity. In line with the development of nanotechnology in recent years, this paper presents an experimental study to show the effects of adding the best percentage of nano-carbons to adhesive resin and evaluate the ultimate axial, shear and bending strengths in concrete samples. The results show that using FRP with carbon nanotube reinforced resins will significantly increase stiffness and ductility by 100%; moreover, it shows an effective increase of almost 13% in axial and flexural strengths of specimens.
Czasopismo
Rocznik
Tom
Strony
177--196
Opis fizyczny
Bibliogr. 40 poz., fot., tab., rys., wykr.
Twórcy
autor
- Department of Civil Engineering, Islamic Azad University, Mashhad Branch, Mashhad, Iran
autor
- Department of Civil Engineering, Islamic Azad University, Mashhad Branch, Mashhad, Iran
autor
- Department of Chemistry, Islamic Azad University, Mashhad Branch, Mashhad, Iran
Bibliografia
- 1. Banaei pour, A and Tavakolizadeh, MR 2015. Effect of change in fiber direction on the compression behavior of confined concrete reinforced with FRP. Seventh national concrete conference of Iran, Tehran, Iran.
- 2. Kabir, MZ, Aladdin, S and Hijab, H 2013. Evaluating the performance of reinforced concrete frame by FRP polymer covers under cyclic loads. Civil Engineer magazine. Issue 3.
- 3. Nakaba, K, Kanakubo, T, Furuta, T and Yoshizawa, H 2001. Bond behavior between fiber-reinforced polymer laminates and concrete. ACI Structural Journal, vol. 98 (3), p.359–367.
- 4. Teng, JG and Lam, L 2002. Compressive Behavior of Carbon Fiber Reinforced Polymer-Confined Concrete in Elliptical Columns. Journal of Structural Engineering, vol. 128 (12).
- 5. Park, T W Na, UJ, Chung, L and Feng, MQ 2008. Compressive behavior of concrete cylinders confined by narrow strips of CFRP with spacing. Composites: Part B, vol. 39, p. 1093–1103.
- 6. Diego, A, de Arteaga, A, Fernández, J, Perera, R and Cisneros, D 2015. Behaviour of FRP confined concrete in square columns. Materiales de Construcción, vol. 65.
- 7. Dong, JF, Wang, QY and Guan, ZW 2012. Structural behaviour of RC beams externally strengthened with FRP sheets under fatigue and monotonic loading, Engineering Structures, p. 24–33.
- 8. Mahal, MSM 2015. Fatigue Behaviour of RC beams Strengthened with CFRP, Analytical and Experimental investigations. Ph.D Thesis, Department of Civil, Environmental and Natural Resources Engineering Luleå University of Technology, Sweden.
- 9. Ferrari, VJ, Hanai, JB and Souza, RA 2013. Flexural strengthening of reinforcement concrete beams using high performance fiber reinforcement cement-based composite (HPFRCC) and carbon fiber reinforced polymers (CFRP), Construction and Building Materials, p. 485–498.
- 10. Cristina, L, Firmo, JP, Correia, JR and Tiago, C 2013. Fire protection systems for reinforced concrete slabs strengthened with CFRP laminates. Construction and Building Materials, p. 324-333.
- 11. Faruqi, M, Escobedo, G, Sun, D and Sai, J 2013. Research and design guidelines for the construction of fiber-reinforced polymer reinforced concrete structures under fire exposure: A brief review. Journal of Reinforced Plastics and Composites, vol. 32 (17), p. 1302-1309.
- 12. Naderi, M and Esmayizade, S 2013. The ultimate strength of concrete beams strengthened by CFRP fabric and laminates at high freezing temperatures. Amir Kabir Journal of Civil Engineering, vol. 48, p. 39-52.
- 13. Kheireddine, B, Ahmed, EA, El-Gamal, S and Benmokrane, B 2011. Testing of full-scale concrete bridge deck slabs reinforced with fiber-reinforced polymer (FRP) bars. Construction and Building Materials, vol. 25 (10), p. 3956-3965.
- 14. Zheng, Y, Li, C and Yu, G 2012. Investigation of structural behaviors of laterally restrained GFRP reinforced concrete slabs. Composites Part B, vol. 43 (3), p. 1586-1597.
- 15. Zheng, Y, Yu, G and Pan, Y 2012. Investigation of ultimate strengths of concrete bridge deck slabs reinforced with GFRP bars. Construction and Building Materials, p. 482-492.
- 16. Wilson, MA, Raguse, B, Kannangara, K, Smith, G and Simmons, M 2014. Nanotechnology: basic science and emerging technology. Publisher: ReadHowYouWant.com.
- 17. Golabchi, M, Taghizadeh, K and Soroushnia, E 2011. Nanotechnology in architecture and civil engineering. Published by University of Tehran Press.
- 18. Rosso, P, Ye, L, Friedrich, K and Sprenger, S 2006. A toughened epoxy resin by silica nanoparticle reinforcement. Journal of Applied Polymer Science, vol. 100 (3), p. 1849–1855.
- 19. Tsai, JL and Cheng, YL 2009. Investigating silica nanoparticle effect on dynamic and quasi-static compressive strengths of glass fiber/epoxy nanocomposites. Journal of Composite Materials, vol. 43 (25), p. 3143–3155.
- 20. Godara, A, et al. 2009. Influence of carbon nanotube reinforcement on the processing and the mechanical behavior of carbon fiber/epoxy composites. Carbon Journal, vol. 47 (12), p. 2914–2923.
- 21. Greef, N, de Gorbatikh, L, Godara, A, Mezzo, L, Lomov, SV and Verpoest, I 2011. The effect of carbon nanotubes on the damage development in carbon fiber/epoxy composites. Carbon Journal, vol. 49 (14), p. 4650–4664.
- 22. Phong, NT, Gabr, MH, Okubo, K, Chuong, B and Fujii, T 2013. Improvement in the mechanical performances of carbon fiber/epoxy composite with addition of nano-(Polyvinyl alcohol) fibers. Composite Structures, vol. 99, p. 380–387.
- 23. He, H, Zhang, Z, Wang, J and Li, K 2013. Compressive properties of nanocalcium carbonate/epoxy and its fibre composites. Composites Part B, vol. 45 (1), p. 919–924.
- 24. Shirkavand Hadavand, B, Mahdavi Javid, K and Gharagozlou, M 2013. Mechanical properties of multi-walled carbon nanotube/epoxy polysulfide nanocomposite. Materials and Design, vol. 50, p. 62–67.
- 25. Sánchez, M, Campo, M, Jiménez-Suárez, A and Ureña, A 2013. Effect of the carbon nanotube functionalization on flexural properties of multiscale carbon fiber/epoxy composites manufactured by VARIM. Composites Part B, vol. 45 (1), p. 1613–1619.
- 26. Liu, F, Deng, S and Zhang, J 2017. Mechanical Properties of Epoxy and Its Carbon Fiber Composites Modified by Nanoparticles. Journal of Nanomaterials, p. 1-9.
- 27. Zhou, Y, Gou, M, Zhang, F, Zhang, S and Wang, D 2013. Reinforced concrete beams strengthened with carbon fiber reinforced polymer by friction hybrid bond technique: Experimental investigation. Materials and Design, vol. 50, p. 130–139.
- 28. Diab, HM and Farghal, O A 2014. Bond strength and effective bond length of FRP sheets/plates bonded to concrete considering the type of adhesive layer. Composites: Part B, vol. 58, p. 618–624.
- 29. Korayem, AH, Li, CY, Zhang, QH, Zhao, ZL and Duan, WH 2015. Effect of carbon nanotube modified epoxy adhesive on CFRP-to-steel interface. Composites Part B, vol. 79, p. 95-104.
- 30. Irshidat, MR and Al-Saleh, MH 2016. Effect of using carbon nanotube modified epoxy on bond–slip behavior between concrete and FRP sheets. Construction and Building Materials, vol. 105, p. 511–518.
- 31. Varastehpour, H and Eskenazy, A R 2014. Increasing the bending capacity of concrete beams, using the fiberglass composites. Seventh national concrete conference of Iran, Tehran.
- 32. GangaRao, VS, Taly, N and Vijay, PV 2007. Reinforced concrete design with FRP composites. Taylor & Francis Group, LLC.
- 33. ISO 4012/1978 1978. Concrete-Determination of compressive strength of test specimens. Geneva.
- 34. ASTM C348-02 2002. Standard test method for flexural strength of hydraulic cement mortars. American Society for Testing and Materials.
- 35. ACI 440.2R-08 2008. Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures.
- 36. ASTM D3039/D3039M-17 2017. Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials.
- 37. Narang, J and Pundir, CS 2018. Current and Future Developments in Nanomaterials and Carbon Nanotubes, Introduction to Carbon Nanomaterials. Bentham Science Publishers, vol. 1.
- 38. Mismiran, A Shahawy, M Nanni, A and Karbhari, V 2004. NCHRP report 514, Bonded repair and Retrofit of Concrete Structures Using FRP Composites. Transportation Research Board.
- 39. ASTM C1583/C1583M-13 2013. Standard Test Method for Tensile Strength of Concrete Surface and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method).
- 40. ASTM D7522 / D7522M-15 2015. Standard Test Method for Pull-Off Strength for FRP Laminate Systems Bonded to Concrete Substrate.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a41099b2-70e3-431e-8261-16a3fbf3d908