Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Relations between rheological and mechanical properties of fiber reinforced mortar

  • Cao, Mingli (Department of Civil Engineering, Dalian University of Technology) ;
  • Li, Li (Department of Civil Engineering, Dalian University of Technology) ;
  • Xu, Ling (Department of Civil Engineering, Dalian University of Technology)
  • Received : 2017.03.06
  • Accepted : 2017.05.22
  • Published : 2017.10.25
⟨ Previous Next ⟩

Abstract

Fresh and hardened behaviors of a new hybrid fiber (steel fiber, polyvinyl alcohol fiber and calcium carbonate whisker) reinforced cementitious composites (HyFRCC) with admixtures (fly ash, silica fume and water reducer) have been studied. Within the limitations of the equipment and testing program, it is illustrated that the rheological properties of the new HyFRCC conform to the modified Bingham model. The relations between flow spread and yield stress as well as flow rate and plastic viscosity both conform well with negative exponent correlation, justifying that slump flow and flow rate test can be applied to replace the other two as simple rheology measurement and control method in jobsite. In addition, for the new HyFRCC with fly ash and water reducer, the mathematical model between the rheological and mechanical properties conform well with the quadratic function, and these quadratic function curves are always concave upward. Based on mathematical analysis, an optimal range of rheology/ flowability can be identified to achieve ideal mechanical properties. In addition, this optimization method can be extended to PVA fiber reinforced cement-based composites.

Keywords

Acknowledgement

Supported by : Natural Science Foundation of China

References

  1. Arslan, M.E. (2016), "Effect of basalt fibers on fracture energy and mechanical properties of HSC", Comput. Concrete, 17(4), 553-566. https://doi.org/10.12989/cac.2016.17.4.553
  2. Artelt, C. and Garcia, E. (2008), "Impact of superplasticizer concentration and of ultra-fine particles on the rheological behaviour of dense mortar suspensions", Cement Concrete Res., 38(5), 633-642. https://doi.org/10.1016/j.cemconres.2008.01.010
  3. Banthia, N. and Soleimani, S.M. (2005), "Flexural response of hybrid fiber-reinforced cementitious composites", ACI Mater. J., 102(6), 382-389.
  4. Banyhussan, Q.S., Yildirim, G., Bayraktar, E., Demirhan, S. and Sahmaran, M. (2016), "Deflection-hardening hybrid fiber reinforced concrete: The effect of aggregate content", Constr. Build. Mater., 125, 41-52. https://doi.org/10.1016/j.conbuildmat.2016.08.020
  5. Bentz, D.P. (2000), "Influence of silica fume on diffusivity in cement-based materials: II. Multi-scale modeling of concrete diffusivity", Cement Concrete Res., 30(7), 1121-1129. https://doi.org/10.1016/S0008-8846(00)00263-5
  6. Blunt, J.D. and Ostertag, C.P. (2009), "Deflection Hardening and workability of hybrid fiber composites", ACI Mater. J., 106(3), 265-272.
  7. Boulekbache, B., Hamrat, M., Chemrouk, M. and Amziane, S. (2010), "Flowability of fibre-reinforced concrete and its effect on the mechanical properties of the material", Constr. Build. Mater., 24(9), 1664-1671. https://doi.org/10.1016/j.conbuildmat.2010.02.025
  8. Cao, M., Xu, L. and Zhang, C. (2016), "Rheology, fiber distribution and mechanical properties of calcium carbonate (CaCO3) whisker reinforced cement mortar", Compos. Part A: Appl. Sci. Manufact., 90, 662-669. https://doi.org/10.1016/j.compositesa.2016.08.033
  9. Cao, M., Zhang, C., Li, Y. and Wei, J. (2015), "Using calcium carbonate whisker in hybrid fiber-reinforced cementitious composites", J. Mater. Civil Eng., 27(4), 04014139. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001041
  10. Cao, M., Zhang, C., Lv, H. and Xu, L. (2014), "Characterization of mechanical behavior and mechanism of calcium carbonate whisker-reinforced cement mortar", Constr. Build. Mater., 66, 89-97. https://doi.org/10.1016/j.conbuildmat.2014.05.059
  11. Chung, D.D. (2005), "Dispersion of short fibers in cement", J. Mater. Civil Eng., 17(4), 379-383. https://doi.org/10.1061/(ASCE)0899-1561(2005)17:4(379)
  12. Deng, Z. and Li, J. (2007), "Mechanical behaviors of concrete combined with steel and synthetic macro-fibers", Comput. Concrete, 4(3), 207-220. https://doi.org/10.12989/cac.2007.4.3.207
  13. Ding, Y., Liu, S., Zhang, Y. and Thomas, A. (2008), "The investigation on the workability of fibre cocktail reinforced self-compacting high performance concrete", Constr. Build. Mater., 22(7), 1462-1470. https://doi.org/10.1016/j.conbuildmat.2007.03.034
  14. Felekoglu, B. and Keskinates, M. (2016), "Multiple cracking analysis of HTPP-ECC by digital image correlation method", Comput. Concrete, 17(6), 831-848. https://doi.org/10.12989/cac.2016.17.6.831
  15. Ferrara, L., Park, Y. and Shah, S.P. (2007), "A method for mix-design of fiber-reinforced self-compacting concrete", Cement Concrete Res., 37(6), 957-971. https://doi.org/10.1016/j.cemconres.2007.03.014
  16. Ferrara, L., Park, Y. and Shah, S.P. (2008), "Correlation among Fresh State Behavior, Fiber Dispersion, and Toughness Properties of SFRCs", J. Mater. Civil Eng., 20(7), 493-501. https://doi.org/10.1061/(ASCE)0899-1561(2008)20:7(493)
  17. Ferraris, C.F., Obla, K.H. and Hill, R. (2001), "The influence of mineral admixtures on the rheology of cement paste and concrete", Cement Concrete Res., 31(2), 245-255. https://doi.org/10.1016/S0008-8846(00)00454-3
  18. Gencel, O., Brostow, W., Datashvili, T. and Thedford, M. (2011), "Workability and mechanical performance of steel fiber-reinforced self-compacting concrete with fly ash", Compos. Interf., 18(2), 169-184. https://doi.org/10.1163/092764411X567567
  19. Okamura, H. and Ouchi, M. (2003), "Self-compacting concrete", J. Adv. Concrete Technol., 1(1), 5-15. https://doi.org/10.3151/jact.1.5
  20. Kandasamy, S. and Akila, P. (2015), "Experimental analysis and modeling of steel fiber reinforced SCC using central composite design", Comput. Concrete, 15(2), 215-229. https://doi.org/10.12989/cac.2015.15.2.215
  21. Kuder, K.G., Ozyurt, N., Mu, E.B. and Shah, S.P. (2007), "Rheology of fiber-reinforced cementitious materials", Cement Concrete Res., 37(2), 191-199. https://doi.org/10.1016/j.cemconres.2006.10.015
  22. Kwan, A.K.H., Fung, W.W.S. and Wong, H.H.C. (2010), "Water film thickness, flowability and rheology of cement-sand mortar", Adv. Cement Res., 22(1), 3-14. https://doi.org/10.1680/adcr.2008.22.1.3
  23. Li, M. and Li, V.C. (2013), "Rheology, fiber dispersion, and robust properties of engineered cementitious composites", Mater. Struct., 46(3), 405-420. https://doi.org/10.1617/s11527-012-9909-z
  24. Li, Q., Liu, J. and Xu, S. (2015), "Progress in research on carbon nanotubes reinforced cementitious composites", Adv. Mater. Sci. Eng., 1-16.
  25. Mastali, M., Dalvand, A. and Fakharifar, M. (2016), "Statistical variations in the impact resistance and mechanical properties of polypropylene fiber reinforced self-compacting concrete", Comput. Concrete, 18(1), 113-137. https://doi.org/10.12989/cac.2016.18.1.113
  26. Nguyen, V.P., Stroeven, M. and Sluys, L.J. (2012), "Multiscale failure modeling of concrete: Micromechanical modeling, discontinuous homogenization and parallel computations", Comput. Meth. Appl. Mech. Eng., 201-204, 139-156. https://doi.org/10.1016/j.cma.2011.09.014
  27. Ozyurt, N., Mason, T.O. and Shah, S.P. (2007), "Correlation of fiber dispersion, rheology and mechanical performance of FRCs", Cement Concrete Compos., 29(2), 70-79. https://doi.org/10.1016/j.cemconcomp.2006.08.006
  28. Parveen, S., Rana, S. and Fangueiro, R. (2013), "A review on nanomaterial dispersion, microstructure, and mechanical properties of carbon nanotube and nanofiber reinforced cementitious composites", J. Nanomater., 1-19.
  29. Perumal, R. (2014), "Performance and modeling of high-performance steel fiber reinforced concrete under impact loads", Comput. Concrete, 13(2), 255-270. https://doi.org/10.12989/cac.2014.13.2.255
  30. Sahmaran, M, Bilici, Z., Ozbay, E., Erdem, T., Yucel, H.E. and Lachemi, M. (2013), "Improving the workability and rheological properties of engineered cementitious composites using factorial experimental design", Compos. Part B: Eng., 45(1), 356-368. https://doi.org/10.1016/j.compositesb.2012.08.015
  31. Soe, K.T., Zhang, Y.X. and Zhang, L.C. (2013), "Material properties of a new hybrid fibre-reinforced engineered cementitious composite", Constr. Build. Mater., 43, 399-407. https://doi.org/10.1016/j.conbuildmat.2013.02.021
  32. Vikan, H. and Justnes, H. (2007), "Rheology of cementitious paste with silica fume or limestone", Cement Concrete Res., 37(11), 1512-1517. https://doi.org/10.1016/j.cemconres.2007.08.012
  33. Wallevik, O.H. and Wallevik, J.E. (2011), "Rheology as a tool in concrete science: The use of rheographs and workability boxes", Cement Concrete Res., 41(12), 1279-1288. https://doi.org/10.1016/j.cemconres.2011.01.009
  34. Wang, D, Zhang, L., Zhang, W. and Hao, B. (2012), "Effects of superplasticizers on multi-level flocculation structure of fresh cement paste", J. Build. Mater., 15(6), 755-759.
  35. Wei, J. and Meyer, C. (2015), "Degradation mechanisms of natural fiber in the matrix of cement composites", Cement Concrete Res., 73, 1-16. https://doi.org/10.1016/j.cemconres.2015.02.019
  36. Xu, W., Guo, F. and Tian, Q. (2014), "Rheological properties of cement paste with limestone powder at different dosages of superplasticizers", J. Build. Mater., 17(2), 274-279.
  37. Yao, W., Li, J. and Wu, K. (2003), "Mechanical properties of hybrid fiber-reinforced concrete at low fiber volume fraction", Cement Concrete Res., 33(1), 27-30. https://doi.org/10.1016/S0008-8846(02)00913-4

Cited by

  1. Effects of Vehicle-Induced Vibrations on the Tensile Performance of Early-Age PVA-ECC vol.12, pp.17, 2017, https://doi.org/10.3390/ma12172652
  2. Investigating loading rate and fibre densities influence on SRG - concrete bond behaviour vol.34, pp.6, 2020, https://doi.org/10.12989/scs.2020.34.6.877