Computers and Concrete

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Bond behavior between high volume fly ash concrete and steel rebars

  • Liang, Jiong-Feng (Jiangxi Engineering Research Center of Process and Equipment for New Energy, East China University of Technology) ;
  • Hu, Ming-Hua (Faculty of Civil & Architecture Engineering, East China University of Technology) ;
  • Gu, Lian-Sheng (Faculty of Civil & Architecture Engineering, East China University of Technology) ;
  • Xue, Kai-Xi (Faculty of Civil & Architecture Engineering, East China University of Technology)
  • Received : 2016.08.22
  • Accepted : 2017.03.09
  • Published : 2017.06.25
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Abstract

In this paper, 54 pull-out specimens and 36 cubic specimens with different replacement ratios of fly ash in the concrete (i.e., 0%, 20%, 30%, 40%, 50%, 60%) were fabricated to evaluate the bond at the interface between fly ash concrete and steel rebar. The results showed that the general shape of the bond-slip curve between fly ash concrete and steel rebar was similar to that for the normal concrete and steel rebar. The bond strength between fly ash concrete and the steel rebar was closer to each other at the same rebar diameter, irrespective of the fly ash replacement percentage. On the basis of a regression analysis of the experimental data, a revised bond strength mode and bond-slip relationship model were proposed to predict the bond-slip behaviour of high volume fly ash concrete and steel rebar.

Keywords

Acknowledgement

Supported by : Chinese National Natural Science Foundation, Natural Science Foundation of Jiangxi Province, East China Institute of Technology

References

  1. ACI Committee 318 (2008), Building Code for Structural Concrete (318R-2008) and Commentary, American Concrete Institute, Farmington Hills, U.S.A.
  2. AS3600 (1994), Australian Standard for Concrete Structures, North Sydney, Australia.
  3. Assi, L.N., Deaver, E., ElBatanouny, M.K. and Ziehl, P. (2016), "Investigation of early compressive strength of fly ash-based geopolymer concrete", Constr. Build. Mater., 113(15), 369-375. https://doi.org/10.1016/j.conbuildmat.2016.03.071
  4. Chinese Code for the Design of Reinforced Concrete Structures (2010), Chinese Building Construction Publishing Press, Beijing, China.
  5. Chousidis, N., Rakanta, E., Ioannou, I. and Batis, G. (2015), "Mechanical properties and durability performance of reinforced concrete containing fly ash", Constr. Build. Mater., 101(1), 810-817. https://doi.org/10.1016/j.conbuildmat.2015.10.127
  6. CSA CAN3-A23.3 (2004), Design of Concrete Structures, Canadian Standards Association, Rexdale, Ontario, Canada.
  7. 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
  8. IS2770 (1967), Methods of Testing Bond in Reinforced Concrete Part 1, Pull-Out Test, Bureau of Indian Standards, New Delhi, India.
  9. Junaid, M.T., Khennane, A. and Kayali, O. (2015), "Performance of fly ash based geopolymer concrete made using nonpelletized fly ash aggregates after exposure to high temperatures", Mater. Struct., 48(10), 3357-3365. https://doi.org/10.1617/s11527-014-0404-6
  10. Leung, H.Y., Kim, J., Nadeem, A., Jaganathan, J. and Anwar, M.P. (2016), "Sorptivity of self-compacting concrete containing fly ash and silica fume", Constr. Build. Mater., 113(15), 369-375. https://doi.org/10.1016/j.conbuildmat.2016.03.071
  11. Nath, P. and Sarker, P.K. (2015), "Use of OPC to improve setting and early strength properties of low calcium fly ash geopolymer concrete cured at room temperature", Cement Concrete Compos., 55, 205-214. https://doi.org/10.1016/j.cemconcomp.2014.08.008
  12. Shafigh, P., Nomeli, M.A., Alengaram, U.J., Mahmud, H.B. and Jumaat, M.Z. (2016), "Engineering properties of lightweight aggregate concrete containing limestone powder and high volume fly ash", J. Clean Prod., 135(1), 148-157. https://doi.org/10.1016/j.jclepro.2016.06.082
  13. Shen, D.J., Shi, X., Zhu, S., Duan, X.F. and Zhang, J.Y. (2016), "Relationship between tensile Young's modulus and strength of fly ash high strength concrete at early age", Constr. Build. Mater., 123(1), 317-326. https://doi.org/10.1016/j.conbuildmat.2016.06.145
  14. 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
  15. Wang, X.Y. and Park, K.B. (2015), "Analysis of compressive strength development of concrete containing high volume fly ash", Constr. Build. Mater., 98(15), 810-819. https://doi.org/10.1016/j.conbuildmat.2015.08.099