Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Size effect on strength of Fiber-Reinforced Self-Compacting Concrete (SCC) after exposure to high temperatures

  • Gulsan, M. Eren (Department of Civil Engineering, Gaziantep University) ;
  • Abdulhaleem, Khamees N. (Department of Civil Engineering, Gaziantep University) ;
  • Kurtoglu, Ahmet E. (Department of Civil Engineering, Istanbul Gelisim University) ;
  • Cevik, Abdulkadir (Department of Civil Engineering, Gaziantep University)
  • Received : 2017.08.31
  • Accepted : 2018.03.12
  • Published : 2018.06.25
⟨ Previous Next ⟩

Abstract

This pioneer study investigates the size effect on the compressive and tensile strengths of fiber-reinforced self-compacting concrete (FR-SCC) with different specimens, before and after exposure to elevated temperatures. 432 self-compacting concrete (SCC) specimens with two concrete grades (50 and 80MPa) and three steel fiber ratios (0%, 0.5% and 1%) were prepared and tested. Moreover, based on the experimental results, new formulations were proposed to predict the residual strengths for different specimens. A parametric study was also carried out to investigate the accuracy of proposed formulations. Residual strength results showed that the cylinder specimen with dimensions of $100{\times}200mm$ was the most affected, while the cube with a size of 100 mm maintained a constant difference with the standard cylinder ($150{\times}300mm$). Temperature effect on the cube specimen (150 mm) was the least in comparison to other specimen sizes and types. In general, provision of steel fibers in SCC mixtures resulted in a reduction in temperature effect on the variance of a conversion factor. Parametric study results confirm that the proposed numerical models are safe to be used for all types of SCC specimens.

Keywords

References

  1. Aslani, F. (2013a), "Effects of specimen size and shape on compressive and tensile strengths of self-compacting concrete with or without fibres", Mag. Concrete Res., 65(15), 914-929. https://doi.org/10.1680/macr.13.00016
  2. Aslani, F. (2015a), "Nanoparticles in self-compacting concrete-a review", Mag. Concrete Res., 67(20), 1084-1100. https://doi.org/10.1680/macr.14.00381
  3. Aslani, F. (2013b), "Prestressed concrete thermal behaviour", Mag. Concrete Res., 65(3), 158-171. https://doi.org/10.1680/macr.12.00037
  4. Aslani, F. (2015b), "Thermal performance modeling of geopolymer concrete", J. Mater. Civil Eng., 28(1), 4015062.
  5. Aslani, F. and Bastami, M. (2011), "Constitutive relationships for normal- and high-strength concrete at elevated temperatures", ACI Mater. J., 108(4), 355-364.
  6. Aslani, F. and Bastami, M. (2015), "Relationship between deflection and crack mouth opening displacement of selfcompacting concrete beams with and without fibers", Mech. Adv. Mater. Struct., 22(11), 956-967. https://doi.org/10.1080/15376494.2014.906689
  7. Aslani, F. and Maia, L. (2013), "Creep and shrinkage of highstrength self-compacting concrete : experimental and analytical analysis", Mag. Concrete Res., 65(17), 1044-1058. https://doi.org/10.1680/macr.13.00048
  8. Aslani, F., Maia, L. and Santos, J. (2017), "Effect of specimen geometry and specimen preparation on the concrete compressive strength test", Struct. Eng. Mech., 62(1), 97-106. https://doi.org/10.12989/sem.2017.62.1.097
  9. Aslani, F. and Natoori, M. (2013), "Stress-strain relationships for steel fiber reinforced self- compacting concrete", Struct. Eng. Mech., 46,(2), 295-322. https://doi.org/10.12989/sem.2013.46.2.295
  10. Aslani, F. and Nejadi, S. (2013), "Mechanical characteristics of self-compacting concrete with and without fibres", Mag. Concrete Res., 65(10), 608-622. https://doi.org/10.1680/macr.12.00153
  11. Aslani, F. and Samali, B. (2013a), "Constitutive relationships for self-compacting concrete at elevated temperatures", Mater. Struct., 48(1-2), 337-356.
  12. Aslani, F. and Samali, B. (2013b), "Predicting the bond between concrete and reinforcing steel at elevated temperatures", Struct. Eng. Mech., 48(5),643-660. https://doi.org/10.12989/sem.2013.48.5.643
  13. ASTM Standards (2004), Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, Annual Book of ASTM Standards (ASTM C39-01), American Society for Testing and Materials, Philadelphia, USA.
  14. Bamonte, P. and Gambarova, P.G. (2016), "High-temperature behavior of SCC in compression: comparative study on recent experimental campaigns", J. Mater. Civil Eng., 28(3), 4015141. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001378
  15. Bastami, M., Baghbadrani, M. and Aslani, F. (2014), "Performance of nano-Silica modified high strength concrete at elevated temperatures", Constr. Build. Mater., 68, 402-408. https://doi.org/10.1016/j.conbuildmat.2014.06.026
  16. Bazant, Z.P. (1993), "Size effect in tensile and compressive quasibrittle failures.", JCI International Workshop on Size Effect in Concrete Structures, 141-160.
  17. Bazant, Z.P. (1984), "Size effect in blunt fracture: concrete, rock, metal", J. Eng. Mech., 110(4), 518-535. https://doi.org/10.1061/(ASCE)0733-9399(1984)110:4(518)
  18. Bazant, Z.P. and Xiang, Y. (1997), "Size effect in compression fracture: splitting crack band propagation", J. Eng. Mech., 123(2), 162-172. https://doi.org/10.1061/(ASCE)0733-9399(1997)123:2(162)
  19. B.S (2000). Testing Hardened Concrete: Compressive Strength of Test Specimens, British Standard Institution, London, U.K.
  20. Dehestani, M., Nikbin, I.M. and Asadollahi, S. (2014), "Effects of specimen shape and size on the compressive strength of selfconsolidating concrete (SCC)", Constr. Build. Mater., 66, 685-691. https://doi.org/10.1016/j.conbuildmat.2014.06.008
  21. Dias, W.P.S., Khoury, G.A. and Sullivan, P.J.E. (1990), "Mechanical properties of hardened cement paste exposed to temperatures up to 700 C (1292 F)", Mater. J., 87(2), 160-166.
  22. EFNARC (2005), The European Guidelines for Self-Compacting Concrete, Specification, Production and Use, Experts for Specialised Construction and Concrete Systems, Farnham, UK.
  23. Fares, H., Remond, S., Noumowe, A. and Cousture, A. (2010), "High temperature behaviour of self-consolidating concrete: microstructure and physicochemical properties", Cement Concrete Res., 40(3), 488-496. https://doi.org/10.1016/j.cemconres.2009.10.006
  24. Kim, J.K. (1990), "Size effect in concrete specimens with dissimilar initial cracks", Mag. Concrete Res., 42(153), 233-238. https://doi.org/10.1680/macr.1990.42.153.233
  25. Kim, J.K., Yi, S.T. and Kim, J.H.J. (2001), "Effect of specimen sizes on flexural compressive strength of concrete", Struct. J., 98(3), 416-424.
  26. Kourkoulis, S.K. and Ganniari-Papageorgiou, E. (2010), "Experimental study of the size-and shape-effects of natural building stones", Constr. Build. Mater., 24(5), 803-810. https://doi.org/10.1016/j.conbuildmat.2009.10.027
  27. Kumar, S. and Barai, S.V. (2012), "Size-effect of fracture parameters for crack propagation in concrete: a comparative study", Comput. Concrete, 9(1), 1-19. https://doi.org/10.12989/cac.2012.9.1.001
  28. Maia, L. and Aslani, F. (2016), "Modulus of elasticity of concretes produced with basaltic aggregate", Comput. Concrete, 17(1), 129-140. https://doi.org/10.12989/cac.2016.17.1.129
  29. Nikbin, I.M., Dehestani, M., Beygi, M.H.A. and Rezvani, M. (2014), "Effects of cube size and placement direction on compressive strength of self-consolidating concrete", Constr. Build. Mater., 59, 144-150. https://doi.org/10.1016/j.conbuildmat.2014.02.008
  30. Sideris, K.K. (2007), "Mechanical characteristics of selfconsolidating concretes exposed to elevated temperatures", J. Mater. Civil Eng., 19(8), 648-654. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:8(648)
  31. Sim, J.I., Yang, K.H., Kim, H.Y. and Choi, B.J. (2013), "Size and shape effects on compressive strength of lightweight concrete", Constr. Build. Mater., 38, 854-864. https://doi.org/10.1016/j.conbuildmat.2012.09.073
  32. Del Viso, J.R., Carmona, J.R. and Ruiz, G. (2007), "Size and shape effects on the compressive strength of high strength concrete", Proceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures, 1297-1304.
  33. Van Der Vurst, F., Desnerck, P., Peirs, J. and De Schutter, G. (2014), "Shape factors of self-compacting concrete specimens subjected to uniaxial loading", Cement Concrete Compos., 54, 62-69. https://doi.org/10.1016/j.cemconcomp.2014.05.009
  34. Yi, S.T., Yang, E.I. and Choi, J.C. (2006), "Effect of specimen sizes, specimen shapes, and placement directions on compressive strength of concrete", Nucl .Eng. Des., 236(2), 115-127. https://doi.org/10.1016/j.nucengdes.2005.08.004
  35. Zhang, B. and Bicanic, N. (2002), "Residual fracture toughness of normal-and high-strength gravel concrete after heating to 600 C", Mater. J., 99(3), 217-226.

Cited by

  1. Flexural strength of concrete-galvalume composite beam under elevated temperatures vol.27, pp.1, 2018, https://doi.org/10.12989/cac.2021.27.1.013