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An Experimental Study on Effect of Concrete Type on Bond Strength of GFRP Bars | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 4، دوره 9، شماره 1 - شماره پیاپی 21، اردیبهشت 2021، صفحه 52-70 اصل مقاله (1.32 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2020.19922.1392 | ||
| نویسندگان | ||
| Alireza Doostmohamadi* 1؛ Asghar Vatani Oskouei2؛ Ali Kheyroddin3 | ||
| 1M.Sc. Graduated, Department of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran | ||
| 2Associate Professor, Department of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran | ||
| 3Professor, Faculty of Civil Engineering, Semnan University, Semnan, Iran | ||
| تاریخ دریافت: 09 اسفند 1398، تاریخ بازنگری: 20 اردیبهشت 1399، تاریخ پذیرش: 03 خرداد 1399 | ||
| چکیده | ||
| One of the common methods to create bond strength in reinforced concrete is providing development length. The bond strength of glass fiber reinforced polymer (GFRP) bar is inherently poor due to its shape, as well as its inadequate mechanical interlocking with concrete. Therefore, providing sufficient development length in this bar is different and more conservative in comparison with steel bars. In this study, three types of concrete are selected, namely normal-weight concrete (NWC), light-weight concrete (LWC), and light-weight fiber reinforced concrete (LFRC). In order to investigate the adequate development length required for GFRP bars and its relation with the concrete type and compressive strength, for Each type of concrete, two different mix designs which have various compressive strengths are considered. 18 cube specimens are fabricated and the direct pull-out test is performed. The results indicate that, in all types of concrete, as the compressive strength increases, the bond strength between concrete and rebar augments. In addition, assessing the bond strength of different types of concrete demonstrates that the use of LWC, due to its inherent weakness of aggregates interlocking, causes pre-mature cracks and loss of the bond strength compared to NWC. Furthermore, LFRC mixtures containing 0.3% and 0.5% macro-synthetic fiber volume fraction reveal that the presence of fibers can be effective in controlling cracks and increases the bond strength between GFRP bars and concrete. As a result, with the increase of the bond strength between the GFRP bar and the concrete, the ultimate capacity of the concrete cross-section augments. | ||
| کلیدواژهها | ||
| Reinforced concrete؛ Bonding resistance؛ GFRP bar؛ Macro-synthetic fiber؛ Light-weight concrete | ||
| مراجع | ||
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[1] Hao, Q. D., Wang, B., & Ou JP. Fiber reinforced polymer rebar’s application to civil engineeringle. Concrete 2006;9:38–40.
[2] Bazli M, Ashrafi H, Oskouei AV. Effect of harsh environments on mechanical properties of GFRP pultruded profiles. Composites Part B: Engineering 2016;99:203–15. doi:10.1016/j.compositesb.2016.06.019.
[3] J. Alves, A. El-Ragaby EE-S. Durability of GFRP bars’ bond to concrete under different loading and environmental conditionstle. Compos Constr 2010;15:249–262.
[4] Feng P, Wang J, Wang Y, Loughery D, Niu D. Effects of corrosive environments on properties of pultruded GFRP plates. Composites Part B: Engineering 2014;67:427–33. doi:10.1016/j.compositesb.2014.08.021.
[5] Hamedmirjafari B, Bolouri Bazzaz J, Abrishami S. Calibration of bar-Concrete Bond Stress Relationships for Bond Stress Prediction of GFRP Soil Nails Using Experimental Pullout Tests. Journal of Rehabilitation in Civil Engineering 2019;0:18–36. doi:10.22075/jrce.2019.14856.1279.
[6] Saleh N, Ashour A, Lam D, Sheehan T. Experimental investigation of bond behaviour of two common GFRP bar types in high – Strength concrete. Construction and Building Materials 2019;201:610–22. doi:10.1016/j.conbuildmat.2018.12.175.
[7] Hosseini G. Capacity Prediction of RC Beams Strengthened with FRP by Artificial Neural Networks Based on Genetic Algorithm. Soft Computing in Civil Engineering 2017;1:93–8. doi:10.22115/scce.2017.48392.
[8] Naderpour H, Nagai K, Fakharian P, Haji M. Innovative models for prediction of compressive strength of FRP-confined circular reinforced concrete columns using soft computing methods. Composite Structures 2019;215:69–84. doi:10.1016/j.compstruct.2019.02.048.
[9] Soong WH, Raghavan J, Rizkalla SH. Fundamental mechanisms of bonding of glass fiber reinforced polymer reinforcement to concrete. Construction and Building Materials 2011;25:2813–21. doi:10.1016/j.conbuildmat.2010.12.054.
[10] Golafshani EM, Rahai A, Sebt MH. Bond behavior of steel and GFRP bars in self-compacting concrete. CONSTRUCTION & BUILDING MATERIALS 2014;61:230–40. doi:10.1016/j.conbuildmat.2014.02.021.
[11] Benmokrane B, Maceachern M, That TT ZB. Evaluation of bond characteristics of GFRP rebars embedded in polymer and normal cement concrete. 1999.
[12] Al-Zahrani MM. Bond behavior of fiber reinforced plastic reinforcements with concrete. Pennsylvania State University, 1995.
[13] Soares S, Freitas N, Pereira E, Nepomuceno E, Pereira E, Sena-Cruz J. Assessment of GFRP bond behaviour for the design of sustainable reinforced seawater concrete structures. Construction and Building Materials 2020;231. doi:10.1016/j.conbuildmat.2019.117277.
[14] Zemour N, Asadian A, Ahmed EA, Khayat KH, Benmokrane B. Experimental study on the bond behavior of GFRP bars in normal and self-consolidating concrete. Construction and Building Materials 2018;189:869–81. doi:10.1016/j.conbuildmat.2018.09.045.
[15] Di B, Wang J, Li H, Zheng J, Zheng Y, Song G. Investigation of bonding behavior of FRP and steel bars in self-compacting concrete structures using acoustic emission method. Sensors (Switzerland) 2019;19:1–14. doi:10.3390/s19010159.
[16] Mazaheripour H, Barros JAO, Sena-Cruz JM, Pepe M, Martinelli E. Experimental study on bond performance of GFRP bars in self-compacting steel fiber reinforced concrete. Composite Structures 2013;95:202–12. doi:10.1016/j.compstruct.2012.07.009.
[17] Almeida Filho FM, El Debs MK, El Debs ALHC. Numerical approach of the bond stress behavior of steel bars embedded in self-compacting concrete and in ordinary concrete using beam models. Revista IBRACON de Estruturas e Materiais 2013;6:499–512. doi:10.1590/s1983-41952013000300009.
[18] Al-Zahrani MM, Al-Dulaijan SU, Nanni A, Bakis CE, Boothby TE. Evaluation of bond using FRP rods with axisymmetric deformations. Construction and Building Materials 1999;13:299–309. doi:10.1016/S0950-0618(99)00038-0.
[19] Huang H, Yuan Y, Zhang W, Hao R, Zeng J. Bond properties between GFRP bars and hybrid fiber-reinforced concrete containing three types of artificial fibers. Construction and Building Materials 2020;250:118857. doi:10.1016/j.conbuildmat.2020.118857.
[20] Patil SB, Manjunatha GS. Experimental study on bond strength of GFRP bars. Materials Today: Proceedings 2020;21:1044–9. doi:10.1016/j.matpr.2020.01.003.
[21] Okelo R, Yuan RL. Bond Strength of Fiber Reinforced Polymer Rebars in Normal Strength Concrete. Journal of Composites for Construction 2005;9:203–13. doi:10.1061/(ASCE)1090-0268(2005)9:3(203).
[22] Ashrafi H, Bazli M, Oskouei AV. Enhancement of bond characteristics of ribbed-surface GFRP bars with concrete by using carbon fiber mat anchorage. Construction and Building Materials 2017;134:507–19. doi:10.1016/j.conbuildmat.2016.12.083.
[23] Doostmohamadi A, Karamloo M, Afzali-Naniz O. Effect of polyolefin macro fibers and handmade GFRP anchorage system on improving the bonding behavior of GFRP bars embedded in self-compacting lightweight concrete. Construction and Building Materials 2020;253:119230. doi:10.1016/j.conbuildmat.2020.119230.
[24] Ghoddousi P, Abbasi AM, Shahrokhinasab E, Abedin M. Prediction of Plastic Shrinkage Cracking of Self-Compacting Concrete. Advances in Civil Engineering 2019;2019.
[25] Mazloom M, Soltani A, Karamloo M, Hassanloo A, Ranjbar A. Effects of silica fume, superplasticizer dosage and type of superplasticizer on the properties of normal and selfcompacting concrete. Advances in Materials Research (South Korea) 2018;7:407–34. doi:10.12989/amr.2018.7.1.407.
[26] Karamloo M, Mazloom M, Payganeh G. Influences of water to cement ratio on brittleness and fracture parameters of self-compacting lightweight concrete. Engineering Fracture Mechanics 2016;168:227–41. doi:10.1016/j.engfracmech.2016.09.011.
[27] Varona FB, Baeza FJ, Bru D, Ivorra S. Evolution of the bond strength between reinforcing steel and fibre reinforced concrete after high temperature exposure. Construction and Building Materials 2018;176:359–70. doi:10.1016/j.conbuildmat.2018.05.065.
[28] Garber D, Shahrokhinasab E. Performance Comparison of In-Service, Full-Depth Precast Concrete Deck Panels to Cast-in-Place Decks. Accelerated Bridge Construction University Transportation Center (ABC-UTC); 2019.
[29] Fakharifar M, Dalvand A, Arezoumandi M, Sharbatdar MK, Chen G, Kheyroddin A. Mechanical properties of high performance fiber reinforced cementitious composites. Computers and Chemical Engineering 2014;71:510–20. doi:10.1016/j.conbuildmat.2014.08.068.
[30] Karamloo M, Afzali-Naniz O, Doostmohamadi A. Impact of using different amounts of polyolefin macro fibers on fracture behavior, size effect, and mechanical properties of self-compacting lightweight concrete. Construction and Building Materials 2020;250:118856. doi:10.1016/j.conbuildmat.2020.118856.
[31] Veljkovic A, Carvelli V, Haffke MM, Pahn M. Concrete cover effect on the bond of GFRP bar and concrete under static loading. Composites Part B: Engineering 2017;124:40–53. doi:10.1016/j.compositesb.2017.05.054.
[32] D7913M-14 AD/. Standard Test Method for Bond Strength of Fiber-Reinforced Polymer Matrix Composite Bars to Concrete by Pullout Testing. ASTM International: American Standard Test Method; 2014.
[33] Bazli M, Ashrafi H, Oskouei AV. Experiments and probabilistic models of bond strength between GFRP bar and different types of concrete under aggressive environments. Construction and Building Materials 2017;148:429–43. doi:10.1016/j.conbuildmat.2017.05.046.
[34] Kotynia R, Szczech D, Kaszubska M. Bond Behavior of GRFP Bars to Concrete in Beam Test. Procedia Engineering 2017;193:401–8. doi:10.1016/j.proeng.2017.06.230.
[35] Moreno C, Bastos AM. Experimental and Numerical Evaluation of Bond Properties Between Reinforcement and Concrete. 5th International Conference on Mechanics and Materials in Design 2006:1–17.
[36] Antonietta Aiello M, Leone M, Pecce M. Bond Performances of FRP Rebars-Reinforced Concrete. Journal of Materials in Civil Engineering 2007;19:205–13. doi:10.1061/(ASCE)0899-1561(2007)19:3(205).
[37] De Almeida Filho FM, El Debs MK, El Debs ALHC. Bond-slip behavior of self-compacting concrete and vibrated concrete using pull-out and beam tests. Materials and Structures/Materiaux et Constructions 2008;41:1073–89. doi:10.1617/s11527-007-9307-0.
[38] Gooranorimi O, Claure G, Suaris W, Nanni A. Bond-slip effect in flexural behavior of GFRP RC slabs. Composite Structures 2018;193:80–6. doi:10.1016/j.compstruct.2018.03.027.
[39] Gooranorimi O, Suaris W, Nanni A. A model for the bond-slip of a GFRP bar in concrete. Engineering Structures 2017;146:34–42. doi:10.1016/j.engstruct.2017.05.034.
[40] ASTM C1116. Standard Specification for Fiber-Reinforced Concrete. 2010.
[41] ASTM D7205 / D7205M-06(2016). Standard Test Method for Tensile Properties of Fiber Reinforced Polymer Matrix Composite Bars. West Conshohocken PA; 2016. doi:10.1520/D7205_D7205M-06R16.
[42] ASTM D7508. Standard Specification for Polyolefin Chopped Strands for Use in Concrete. 2010.
[43] ASTM D2256. Standard Test Method for Tensile Properties of Yarns by the Single-Strand Method. 2010.
[44] Canadian Standards Association. Design and Construction of Building Components with Fibrereinforced Polymers. 2002.
[45] Navas FO, Navarro-gregori J, Herdocia GL, Serna P, Cuenca E. An experimental study on the shear behaviour of reinforced concrete beams with macro-synthetic fibres. Construction and Building Materials 2018;169:888–99. doi:10.1016/j.conbuildmat.2018.02.023.
[46] ACI Committee 440.1R. Guide for the Design and Construction of Structural Concrete Reinforced with Fiber-Reinforced Polymer Bars. 2015.
[47] Canadian Standards Association. S806-12. Design And Construction Of Building Structures With Fibre-Reinforced Polymers 2012.
[48] Wambeke, B. W., & Shield CK. Development length of glass fiber-reinforced polymer bars in concrete. ACI Structural Journal 2006;103:11. | ||
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