Structural Engineering and Mechanics

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Local bond-slip behavior of medium and high strength fiber reinforced concrete after exposure to high temperatures

  • Tang, Chao-Wei (Department of Civil Engineering & Geomatics, Cheng Shiu University)
  • Received : 2017.12.15
  • Accepted : 2018.02.27
  • Published : 2018.05.25
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Abstract

This study aims to investigate the influence of individual and hybrid fiber on the local bond-slip behavior of medium and high strength concrete after exposure to different high temperatures. Tests were conducted on local pullout specimens (150 mm cubes) with a reinforcing bar embedded in the center section. The embedment lengths in the pullout specimens were three times the bar diameter. The parameters investigated include concrete type (control group: ordinary concrete; experimental group: fiber concrete), concrete strength, fiber type and targeted temperature. The test results showed that the ultimate bond stress in the local bond stress versus slip curve of the high strength fiber reinforced concrete was higher than that of the medium strength fiber reinforced concrete. In addition, the use of hybrid combinations of steel fiber and polypropylene fiber can enhance the residual bond strength ratio of high strength concrete.

Keywords

Acknowledgement

Supported by : Ministry of Science and Technology (MOST)

References

  1. ACI-318 (1999), Building Code Requirements for Reinforced Concrete and Commentary, American Concrete Institute, Farmington Hills, Michigan, U.S.A.
  2. ACI-318 (2014), Building Code Requirements for Reinforced Concrete and Commentary, American Concrete Institute, Farmington Hills, Michigan, U.S.A.
  3. ACI Committee 408 (2003), Bond and Development of Straight Reinforcing Bars in Tension (ACI 408R-03), American Concrete Intitute, Farmington Hills, Michigan, U.S.A.
  4. Alexandre Bogas, J., Gomes, M.G. and Real, S. (2014), "Bonding of steel reinforcement in structural expanded clay lightweight aggregate concrete: The influence of failure mechanism and concrete composition", Constr. Build. Mater., 65, 350-359. https://doi.org/10.1016/j.conbuildmat.2014.04.122
  5. ASTM C150/C150M-15 (2015), Standard Specification for Portland Cement, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  6. ASTM C33/C33M-13 (2013), Standard Specification for Concrete Aggregates, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  7. Bilodeau, A., Kodur, V.K.R. and Hoff, G.C. (2004), "Optimization of the type and amount of polypropylene fibres for preventing the spalling of lightweight concrete subjected to hydrocarbon fire", Cement Concrete Compos., 26(2), 163-174. https://doi.org/10.1016/S0958-9465(03)00085-4
  8. Chan, Y.N, Luo, X. and Sun, W. (2000), "Compressive strength and pore structure of high-performance concrete after exposure to high temperature up to $800^{\circ}C$", Cement Concrete Res., 30(2), 247-251. https://doi.org/10.1016/S0008-8846(99)00240-9
  9. Choi, J.I. and Lee, B.Y. (2015), "Bonding properties of basalt fiber and strength reduction according to fiber orientation", Mater., 8(10), 6719-6727. https://doi.org/10.3390/ma8105335
  10. Dehestani, M. and Mousavi, S.S. (2015), "Modified steel bar model incorporating bond-slip effects for embedded element method", Constr. Build. Mater., 81, 284-290. https://doi.org/10.1016/j.conbuildmat.2015.02.027
  11. Deng, Z.C., Jumbe, R.D. and Yuan, C.X. (2014), "Bonding between high strength rebar and reactive powder concrete", Comput. Concrete, 13(3), 411-421. https://doi.org/10.12989/cac.2014.13.3.411
  12. Ding, Y., Azevedo, C., Aguiar, J.B. and Jalali, S. (2012), "Study on residual behaviour and flexural toughness of fibre cocktail reinforced self compacting high performance concrete after exposure to high temperature", Constr. Build. Mater., 26(1), 21-31. https://doi.org/10.1016/j.conbuildmat.2011.04.058
  13. Ergun, A., Kurklu, G. and Baspinar, M.S. (2016), "The effects of material properties on bond strength between reinforcing bar and concrete exposed to high temperature", Constr. Build. Mater., 112, 691-698. https://doi.org/10.1016/j.conbuildmat.2016.02.213
  14. FIP/CEB (1990), High Strength Concrete: State of the Art Report, Bulletin d'Information No. 197. London, U.K.
  15. Golafshani, E.M., Rahai, A. and Kebria, S.S.H. (2014b), "Prediction of the bond strength of ribbed steel bars in concrete based on genetic programming", Comput. Concrete, 14(3), 327-359. https://doi.org/10.12989/cac.2014.14.3.327
  16. Golafshani, E.M., Rahai, A. and Sebt, M.H. (2014a), "Bond behavior of steel and GFRP bars in self-compacting concrete", Constr. Build. Mater., 61, 230-240. https://doi.org/10.1016/j.conbuildmat.2014.02.021
  17. Golafshani, E.M., Rahai, A. and Sebt, M.H. (2015), "Artificial neural network and genetic programming for predicting the bond strength of GFRP bars in concrete", Mater. Struct., 48(5), 1581-1602. https://doi.org/10.1617/s11527-014-0256-0
  18. Golafshani, E.M., Rahai, A., Sebt, M.H. and Akbarpour, H. (2012), "Prediction of bond strength of spliced steel bars in concrete using artificial neural network and fuzzy logic", Constr. Build. Mater., 36, 411-418. https://doi.org/10.1016/j.conbuildmat.2012.04.046
  19. Kim, M.J., Kim, S., Lee, S.K., Kim, J.H., Lee, K. and Yoo, D.Y. (2017), "Mechanical properties of ultra-high-performance fiber-reinforced concrete at cryogenic temperatures", Constr. Build. Mater., 157, 498-508. https://doi.org/10.1016/j.conbuildmat.2017.09.099
  20. Kim, N.W., Lee, H.H. and Kim, C.H. (2016), "Fracture behavior of hybrid fiber reinforced concrete according to the evaluation of crack resistance and thermal", Comput. Concrete, 18(5), 685-696.
  21. Ko, J., Ryu, D. and Noguchi, T. (2011), "The spalling mechanism of high-strength concrete under fire", Mag. Concrete Res., 63(5), 357-370. https://doi.org/10.1680/macr.10.00002
  22. Kodur, V. (2014), Properties of Concrete at Elevated Temperatures, ISRN Civil Engineering Volume, Article ID 468510.
  23. Lee, H.H. and Yi, S.T. (2016), "Structural performance evaluation of steel fiber reinforced concrete beams with recycled aggregates", Comput. Concrete, 18(5), 741-756.
  24. Mehta, P.K. and Monteiro, P.J.M. (2006), Concrete: Microstructure, Properties, and Materials, 3rd Edition, The McGraw-Hill Companies, Inc., New York, U.S.A.
  25. Mo, K.H., Alengaram, U.J., Visintin, P., Goh, S.H. and Jumaat, M.Z. (2015), "Influence of lightweight aggregate on the bond properties of concrete with various strength grades", Constr. Build. Mater., 84, 377-386. https://doi.org/10.1016/j.conbuildmat.2015.03.040
  26. Nematzadeh, M. and Poorhosein, R. (2017), "Estimating properties of reactive powder concrete containing hybrid fibers using UPV", Comput. Concrete, 20(4), 4915-4502.
  27. Ozawa, M. and Morimoto, M. (2014), "Effects of various fibres on high-temperature spalling in high-performance concrete", Constr. Build. Mater., 71, 83-92. https://doi.org/10.1016/j.conbuildmat.2014.07.068
  28. Poon, C.S., Shui, Z.H. and Lam, L. (2004), "Compressive behavior of fiber reinforced high-performance concrete subjected to elevated temperatures", Cement Concrete Res., 34(12), 2215-2222. https://doi.org/10.1016/j.cemconres.2004.02.011
  29. RILEM (1994), Technical Recommendations for the Testing and Use of Construction Materials, E&FN Spon, London, U.K.
  30. Ruano, G., Isla, F., Luccioni, B., Zerbino, R. and Giaccio, G. (2018), "Steel fibers pull-out after exposure to high temperatures and its contribution to the residual mechanical behavior of high strength concrete", Constr. Build. Mater., 163, 571-585. https://doi.org/10.1016/j.conbuildmat.2017.12.129
  31. Saleem, M. (2017), "Study to detect bond degradation in reinforced concrete beams using ultrasonic pulse velocity test method", Struct. Eng. Mech., 64(4), 427-436. https://doi.org/10.12989/SEM.2017.64.4.427
  32. Siddique, R. and Kaur, D. (2012), "Properties of concrete containing ground granulated blast furnace slag (GGBFS) at elevated temperatures", J. Adv. Res., 3(1), 45-51. https://doi.org/10.1016/j.jare.2011.03.004
  33. Soroushian, P., Mirza, F. and Alhozaimy, A. (1994), "Bonding of confined steel fiber reinforced concrete to deformed bars", ACI Mater. J., 91(2), 144-149.
  34. Tang, C.W. (2015), "Local bond stress-slip behavior of reinforcing bars embedded in lightweight aggregate concrete", Comput. Concrete, 16(3), 449-466. https://doi.org/10.12989/cac.2015.16.3.449
  35. Tang, C.W. (2017), "Uniaxial bond stress-slip behavior of reinforcing bars embedded in lightweight aggregate concrete", Struct. Eng. Mech., 62(5), 651-661. https://doi.org/10.12989/SEM.2017.62.5.651
  36. Varona, F.B., Baeza, F.J., Bru, D. and Ivorra, S. (2018), "Influence of high temperature on the mechanical properties of hybrid fibre reinforced normal and high strength concrete", Constr. Build. Mater., 159, 73-82. https://doi.org/10.1016/j.conbuildmat.2017.10.129
  37. Xiong, M.X. and Richard Liew, J.Y. (2015), "Spalling behavior and residual resistance of fibre reinforced ultra-high performance concrete after exposure to high temperatures", Mater. Constr., 65(320), e071. https://doi.org/10.3989/mc.2015.00715
  38. Xu, M., Hallinan, B. and Wille, K. (2016), "Effect of loading rates on pullout behavior of high strength steel fibers embedded in ultra-high performance concrete", Cement Concrete Compos., 70, 98-109. https://doi.org/10.1016/j.cemconcomp.2016.03.014
  39. Yan, Z., Shen, Y., Zhu, H., Li, X. and Lu, Y. (2015), "Experimental investigation of reinforced concrete and hybrid fibre reinforced concrete shield tunnel segments subjected to elevated temperature", Fire Safety J., 71, 86-99. https://doi.org/10.1016/j.firesaf.2014.11.009
  40. Zhang, H. and Yu, R.C. (2016), "Inclined fiber pullout from a cementitious matrix: A numerical study", Mater., 9(10), 800. https://doi.org/10.3390/ma9100800
  41. Zhou, X., Mou, T., Tang, H. and Fan, B. (2017), "Experimental study on ultrahigh strength concrete filled steel tube short columns under axial load", Adv. Mater. Sci. Eng., 9.