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An Experimental Study on Bond Behavior of Rebar and High-Performance Fiber Reinforced Cementitious Composite (HPFRCC) at High Temperatures | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 6، دوره 12، شماره 1 - شماره پیاپی 33، اردیبهشت 2024، صفحه 77-91 اصل مقاله (1.4 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2023.29856.1810 | ||
| نویسندگان | ||
| Salim Karimpour1؛ Rahmat Madandous2؛ Malek Mohammad Ranjbar* 3؛ Habib Akbarzadeh Bengar4 | ||
| 1Ph.D. Student, Department of Civil Engineering, University of Guilan, Rasht, Iran | ||
| 2Professor, Department of Civil Engineering, University of Guilan, Rasht, Iran | ||
| 3Associate Professor, Department of Civil Engineering, University of Guilan, Rasht, Iran | ||
| 4Associate Professor, Department of Civil Engineering, University of Mazandaran, Babolsar, Iran | ||
| تاریخ دریافت: 20 بهمن 1401، تاریخ بازنگری: 22 فروردین 1402، تاریخ پذیرش: 14 تیر 1402 | ||
| چکیده | ||
| In this work, it was attempted to explore the bond behavior of rebars in high-performance fiber-reinforced cementitious composite (HPFRCC) consisting of hybrid fibers with 1 and 2% by weight of binder for steel and 0.1, 0.2, 0.3, and 0.4% by weight of binder for polypropylene (PP) and polyvinyl alcohol (PVA) fibers along with the compressive and tensile strengths after exposure to high temperature. From 19 mix designs, four superior ones which experienced lower reduction in compressive strength at 400 and 600 oC was selected in order to investigate the bond behavior of rebar in HPFRCC specimens using direct pullout and RILEM beam tests. The experimental results revealed that the HPFRCC specimens with 1% steel fiber combined with 0.2% PP fiber and 0.3% PVA fiber, separately, had the minimum compressive strength loss at 400 and 600 °C. For the HPFRCC with 2% steel fiber, the higher compressive strength at the given temperatures was observed for those with 0.3% PP and 0.2% PVA fiber, separately. The specimens with higher compressive strength at the given temperatures were those that had 2% steel fibers, 0.3% PP, and 0.2% PVA fibers. The specimen with 1% steel fibers and 0.3% polypropylene fibers had a greater tensile strength with a value of 14.2 MPa compared to other specimens. Furthermore, the bond capacity of rebar in HPFRCC continues to decline with temperature rise up to 600 °C to the point where this reduction for the chosen specimens is approximately 62% of the bond strength of the specimens at the room temperature (i.e., 23 °C). The maximum pull-out force has a significant relationship with the type and proportion of fibers, as demonstrated by the RILEM beam's results. Compared to specimens containing PP fibers, those with PVA fibers at high temperatures were able to tolerate higher bond strength. | ||
| کلیدواژهها | ||
| Bond behavior؛ HPFRCC؛ PVA fibre؛ RILEM test؛ Pullout test | ||
| مراجع | ||
|
[1] Bažant ZP, Li Z, Thoma M. Identification of Stress-Slip Law for Bar or Fiber Pullout by Size Effect Tests. J Eng Mech 1995;121:620–5. https://doi.org/10.1061/(asce)0733-9399(1995)121:5(620).
[2] Bingöl AF, Gül R. Residual bond strength between steel bars and concrete after elevated temperatures. Fire Saf J 2009;44:854–9. https://doi.org/10.1016/j.firesaf.2009.04.001.
[3] Bandelt MJ, Billington SL. Bond behavior of steel reinforcement in high-performance fiber-reinforced cementitious composite flexural members. Mater Struct Constr 2016;49:71–86. https://doi.org/10.1617/s11527-014-0475-4.
[4] Jahangir H, Nikkhah Z, Eidgahee DR, Esfahani MR. Performance Based Review and Fine-Tuning of TRM-Concrete Bond Strength Existing Models. J Soft Comput Civ Eng 2023;7:43–55. https://doi.org/10.22115/scce.2022.349483.1476.
[5] Institute) ACI (American C. ACI 408R-03: Bond and development of straight reinforcing bars in tension, 2003.
[6] Rilem TC. RC 6 Bond test for reinforcement steel. 2. Pull-out test, 1983. RILEM Recomm Test Use Constr Mater 1994:218–20.
[7] Chan Y-W, Chen Y-S, Liu Y-S. Development of bond strength of reinforcement steel in self-consolidating concrete. Struct J 2003;100:490–8.
[8] Belarbi A, Richardson DN, Swenty MK, Taber LH. Effect of Contamination on Reinforcing Bar-Concrete Bond. J Perform Constr Facil 2010;24:206–14. https://doi.org/10.1061/(asce)cf.1943-5509.0000091.
[9] Desnerck P, Lees JM, Morley CT. Bond behaviour of reinforcing bars in cracked concrete. Constr Build Mater 2015;94:126–36. https://doi.org/10.1016/j.conbuildmat.2015.06.043.
[10] Kotynia R. Bond between FRP and concrete in reinforced concrete beams strengthened with near surface mounted and externally bonded reinforcement. Constr Build Mater 2012;32:41–54. https://doi.org/10.1016/j.conbuildmat.2010.11.104.
[11] 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. Rev IBRACON Estruturas e Mater 2013;6:499–512. https://doi.org/10.1590/s1983-41952013000300009.
[12] 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. Compos Struct 2013;95:202–12. https://doi.org/10.1016/j.compstruct.2012.07.009.
[13] Deng F, Ding X, Chi Y, Xu L, Wang L. The pull-out behavior of straight and hooked-end steel fiber from hybrid fiber reinforced cementitious composite: Experimental study and analytical modelling. Compos Struct 2018;206:693–712. https://doi.org/10.1016/j.compstruct.2018.08.066.
[14] Li X, Bao Y, Xue N, Chen G. Bond strength of steel bars embedded in high-performance fiber-reinforced cementitious composite before and after exposure to elevated temperatures. Fire Saf J 2017;92:98–106. https://doi.org/10.1016/j.firesaf.2017.06.006.
[15] Xiao J, Hou Y, Huang Z. Beam test on bond behavior between high-grade rebar and high-strength concrete after elevated temperatures. Fire Saf J 2014;69:23–35. https://doi.org/10.1016/j.firesaf.2014.07.001.
[16] Kim SW, Yun H Do, Park WS, Jang Y Il. Bond strength prediction for deformed steel rebar embedded in recycled coarse aggregate concrete. Mater Des 2015;83:257–69. https://doi.org/10.1016/j.matdes.2015.06.008.
[17] Jahangir H, Rezazadeh Eidgahee D, Esfahani MR. Bond strength characterization and estimation of steel fibre reinforced polymer-concrete composites. Steel Compos Struct 2022;44.
[18] Yoo DY, Kwon KY, Park JJ, Yoon YS. Local bond-slip response of GFRP rebar in ultra-high-performance fiber-reinforced concrete. Compos Struct 2015;120:53–64. https://doi.org/10.1016/j.compstruct.2014.09.055.
[19] Pothisiri T, Panedpojaman P. Modeling of bonding between steel rebar and concrete at elevated temperatures. Constr Build Mater 2012;27:130–40. https://doi.org/10.1016/j.conbuildmat.2011.08.014.
[20] Wei J, Liu H, Leung CKY. Numerical modelling of bond behavior between rebar and high-strength fiber-reinforced cementitious composites (HSFRCC) for inter-module joint in modular construction. Eng Struct 2023;278:115483. https://doi.org/10.1016/j.engstruct.2022.115483.
[21] Elhadary R, Bassuoni MT. Interfacial Bonding between Basalt Fiber/Polymer Pellets and Various Nano-Modified Cementitious Matrices. J Mater Civ Eng 2023;35:04022471. https://doi.org/10.1061/(asce)mt.1943-5533.0004632.
[22] Morley PD, Royles R. Response of the Bond in Reinforced Concrete to High Temperatures. Mag Concr Res 1983;35:67–74. https://doi.org/10.1680/macr.1983.35.123.67.
[23] Bingöl AF, Tohumcu \.Ilhan. Effects of different curing regimes on the compressive strength properties of self compacting concrete incorporating fly ash and silica fume. Mater \& Des 2013;51:12–8.
[24] Cai B, Wu A, Fu F. Bond behavior of PP fiber-reinforced cinder concrete after fire exposure. Comput Concr An Int J 2020;26:115–25.
[25] Xiao J, Li Z, Xie Q, Shen L. Effect of strain rate on compressive behaviour of high-strength concrete after exposure to elevated temperatures. Fire Saf J 2016;83:25–37. https://doi.org/10.1016/j.firesaf.2016.04.006.
[26] Yu R, Spiesz P, Brouwers HJH. Development of an eco-friendly Ultra-High Performance Concrete (UHPC) with efficient cement and mineral admixtures uses. Cem Concr Compos 2015;55:383–94. https://doi.org/10.1016/j.cemconcomp.2014.09.024.
[27] Meng W, Khayat KH. Mechanical properties of ultra-high-performance concrete enhanced with graphite nanoplatelets and carbon nanofibers. Compos Part B Eng 2016;107:113–22. https://doi.org/10.1016/j.compositesb.2016.09.069.
[28] Ghaderi Barmi C, Saghafi MH, Golafshar A. Seismic retrofit of severely damaged beam-column RC joints using HPFRCC. Structures 2023;47:1020–32. https://doi.org/10.1016/j.istruc.2022.12.003.
[29] Peng GF, Yang WW, Zhao J, Liu YF, Bian SH, Zhao LH. Explosive spalling and residual mechanical properties of fiber-toughened high-performance concrete subjected to high temperatures. Cem Concr Res 2006;36:723–7. https://doi.org/10.1016/j.cemconres.2005.12.014.
[30] Khaliq W, Kodur V. Thermal and mechanical properties of fiber reinforced high performance self-consolidating concrete at elevated temperatures. Cem Concr Res 2011;41:1112–22. https://doi.org/10.1016/j.cemconres.2011.06.012.
[31] Way RT, Wille K. Effect of Heat-Induced Chemical Degradation on the Residual Mechanical Properties of Ultrahigh-Performance Fiber-Reinforced Concrete. J Mater Civ Eng 2016;28:04015164. https://doi.org/10.1061/(asce)mt.1943-5533.0001402.
[32] Yoo DY, Kim S, Kim JJ, Chun B. An experimental study on pullout and tensile behavior of ultra-high-performance concrete reinforced with various steel fibers. Constr Build Mater 2019;206:46–61. https://doi.org/10.1016/j.conbuildmat.2019.02.058.
[33] Krahl PA, de Miranda Saleme Gidrão G, Neto RB, Carrazedo R. Effect of curing age on pullout behavior of aligned and inclined steel fibers embedded in UHPFRC. Constr Build Mater 2021;266:121188. https://doi.org/10.1016/j.conbuildmat.2020.121188.
[34] Liu F, Ding W, Qiao Y. Experimental investigation on the tensile behavior of hybrid steel-PVA fiber reinforced concrete containing fly ash and slag powder. Constr Build Mater 2020;241:118000. https://doi.org/10.1016/j.conbuildmat.2020.118000.
[35] Niu Y, Wei J, Jiao C. Crack propagation behavior of ultra-high-performance concrete (UHPC) reinforced with hybrid steel fibers under flexural loading. Constr Build Mater 2021;294:123510. https://doi.org/10.1016/j.conbuildmat.2021.123510.
[36] Moradikhou AB, Esparham A, Jamshidi Avanaki M. Physical & mechanical properties of fiber reinforced metakaolin-based geopolymer concrete. Constr Build Mater 2020;251:118965. https://doi.org/10.1016/j.conbuildmat.2020.118965.
[37] Tanyildizi H, Yonar Y. Mechanical properties of geopolymer concrete containing polyvinyl alcohol fiber exposed to high temperature. Constr Build Mater 2016;126:381–7. https://doi.org/10.1016/j.conbuildmat.2016.09.001.
[38] Qasim M, Lee CK, Zhang YX. An experimental study on interfacial bond strength between hybrid engineered cementitious composite and concrete. Constr Build Mater 2022;356:129299. https://doi.org/10.1016/j.conbuildmat.2022.129299.
[39] Varona FB, Baeza FJ, Bru D, Ivorra S. Evolution of the bond strength between reinforcing steel and fibre reinforced concrete after high temperature exposure. Constr Build Mater 2018;176:359–70. https://doi.org/10.1016/j.conbuildmat.2018.05.065.
[40] Basaran B, Kalkan I. Investigation on variables affecting bond strength between FRP reinforcing bar and concrete by modified hinged beam tests. Compos Struct 2020;242:112185. https://doi.org/10.1016/j.compstruct.2020.112185.
[41] Fakoor M, Nematzadeh M. Evaluation of post-fire pull-out behavior of steel rebars in high-strength concrete containing waste PET and steel fibers: Experimental and theoretical study. Constr Build Mater 2021;299:123917. https://doi.org/10.1016/j.conbuildmat.2021.123917. | ||
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