Computers and Concrete

  • 제21권3호
  • /
  • Pages.231-237
  • /
  • 2018
  • /
  • 1598-8198(pISSN)
  • /
  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Tensile strain-hardening behaviors and crack patterns of slag-based fiber-reinforced composites

  • 투고 : 2017.05.01
  • 심사 : 2017.10.27
  • 발행 : 2018.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

A strain-hardening highly ductile composite based on an alkali-activated slag binder and synthetic fibers is a promising construction material due to its excellent tensile behavior and owing to the ecofriendly characteristics of its binder. This study investigated the effect of different types of synthetic fibers and water-to-binder ratios on the compressive strength and tensile behavior of slag-based cementless composites. Alkali-activated slag was used as a binder and water-to-binder ratios of 0.35, 0.45, and 0.55 were considered. Three types of fibers, polypropylene fiber, polyethylene (PE) fiber, and polyparaphenylene-benzobisethiazole (PBO) fiber, were used as reinforcing fibers, and compression and uniaxial tension tests were performed. The test results showed that the PE fiber series composites exhibited superior tensile behavior in terms of the tensile strain capacity and crack patterns while PBO fiber series composites had high tensile strength levels and tight crack widths and spacing distances.

키워드

과제정보

연구 과제 주관 기관 : National Research Foundation of Korea (NRF)

참고문헌

  1. ASTM (2007), Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or (50-mm) cube specimens), American Society for Testing and Materials, ASTM International West Conshohocken, PA.
  2. Cho, C.G., Lim, H.J., Lee, B.Y. and Choi, Y. (2015), "Experiments and performances of strain-hardening fiber low cementitious composites", Adv. Mech. Eng., 7(6), 1-7. https://doi.org/10.1177/1687814015585420
  3. Choi, J.I., Lee, B.Y., Ranade, R., Li, V.C. and Lee, Y. (2016), "Ultra-high-ductile behavior of a polyethylene fiber-reinforced alkali-activated slag-based composite", Cem. Concr. Compos., 70, 153-158. https://doi.org/10.1016/j.cemconcomp.2016.04.002
  4. Choi, J.I., Song, K.I., Song, J.K. and Lee, B.Y. (2016), "Composite properties of high-strength polyethylene fiber-reinforced cement and cementless composites", Compos. Struct., 138, 116-121. https://doi.org/10.1016/j.compstruct.2015.11.046
  5. Choi, S.J., Choi, J.I., Song, J.K. and Lee, B.Y. (2015), "Rheological and mechanical properties of fiber-reinforced alkali-activated composite", Constr. Build. Mater., 96, 112-118. https://doi.org/10.1016/j.conbuildmat.2015.07.182
  6. 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
  7. Felekoglu, B., Tosun-Felekoglu, K., Ranade, R., Zhang, Q. and Li, V.C. (2014), "Influence of matrix flowability, fiber mixing procedure, and curing conditions on the mechanical performance of HTPP-ECC", Compos. Part B Eng., 60, 359-370. https://doi.org/10.1016/j.compositesb.2013.12.076
  8. Huang, J. and Huang, P. (2011), "Three-dimensional numerical simulation and cracking analysis of fiber-reinforced cementbased composites", Comput. Concrete, 8(3), 327-341. https://doi.org/10.12989/cac.2011.8.3.327
  9. JSCE (2008), Recommendations for Design and Construction of High Performance Fiber Reinforced Cement Composites with Multiple Fine Cracks (HPFRCC), Japan Society of Civil Engineers, Japan.
  10. Kanda, T. and Li, V.C. (1998), "Interface property and apparent strength of high-strength hydrophilic fiber in cement matrix", J. Mater. Civil. Eng., ASCE, 10(1), 5-13. https://doi.org/10.1061/(ASCE)0899-1561(1998)10:1(5)
  11. Kanda, T. and Li, V.C. (2006), "Practical design criteria for saturated pseudo strain hardening behavior in ECC", J. Adv. Concr. Technol., 4(1), 59-72. https://doi.org/10.3151/jact.4.59
  12. Kang, S.T., Choi, J.I., Koh, K.T., Lee, K.S. and Lee, B.Y. (2016), "Hybrid effects of steel fiber and microfiber on the tensile behavior of ultra-high performance concrete", Compos. Struct., 145, 37-42. https://doi.org/10.1016/j.compstruct.2016.02.075
  13. Kang, S.T., Lee, K.S., Choi, J.I., Lee, Y., Felekoglu, B. and Lee, B.Y. (2016), "Control of tensile behavior of ultra-high performance concrete through artificial flaws and fiber hybridization", Int. J. Concrete Struct. Mater., 10(3), 33-41. https://doi.org/10.1007/s40069-016-0155-6
  14. Lee, B.Y., Cho, C.G., Lim, H.J., Song, J.K., Yang, K.H. and Li, V.C. (2012), "Strain hardening fiber reinforced alkali-activated mortar-A feasibility study", Constr. Build. Mater., 37, 15-20. https://doi.org/10.1016/j.conbuildmat.2012.06.007
  15. Lee, B.Y., Kim, J.K. and Kim, Y.Y. (2010), "Prediction of ECC tensile stress-strain curves based on modified fiber bridging relations considering fiber distribution characteristics", Comput. Concrete, 7(5), 455-468. https://doi.org/10.12989/cac.2010.7.5.455
  16. Lee, B.Y., Lee, Y., Kim, J.K. and Kim, Y.Y. (2010), "Micromechanics-based fiber-bridging analysis of strainhardening cementitious composite accounting for fiber distribution", CMES-Comp. Model. Eng. Sci. CMES-Comp. Model. Eng. Sci., 61(2), 111-132.
  17. 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
  18. Li, M., Luu, H.C., Wu, C., Mo, Y. and Hsu, T.T. (2014), "Seismic performance of reinforced engineered cementitious composite shear walls", Earthq. Struct., 7(5), 691-704. https://doi.org/10.12989/eas.2014.7.5.691
  19. Li, V.C. (2012), "Tailoring ECC for special attributes: A review", Int. J. Concrete Struct. Mater., 6(3), 135-144. https://doi.org/10.1007/s40069-012-0018-8
  20. Li, V.C., Wang, S. and Wu, C. (2001), "Tensile strain-hardening behavior of polyvinyl alcohol engineered cementitious composite (PVA-ECC)", ACI Mater. J., 98(6), 483-492.
  21. Maalej, M. and Li, V.C. (1994), "Flexural/tensile-strength ratio in engineered cementitious composites", J. Mater. Civil. Eng., ASCE, 6(4), 513-528. https://doi.org/10.1061/(ASCE)0899-1561(1994)6:4(513)
  22. Nematollahi, B., Sanjayan, J. and Ahmed Shaikh, F.U. (2015), "Tensile strain hardening behavior of PVA fiber-reinforced engineered geopolymer composite", J. Mater. Civil. Eng., ASCE, 04015001.
  23. Nematollahi, B., Sanjayan, J. and Shaikh, F.U.A. (2015), "Strain hardening behavior of engineered geopolymer composites: effects of the activator combination", J. Aust. Ceram. Soc., 51(1), 54-60.
  24. Ohno, M. and Li, V.C. (2014), "A feasibility study of strain hardening fiber reinforced fly ash-based geopolymer composites", Constr. Build. Mater., 57, 163-168. https://doi.org/10.1016/j.conbuildmat.2014.02.005
  25. Ranade, R., Li, V.C., Stults, M.D., Heard, W.F. and Rushing, T.S. (2013), "Composite properties of high-strength, high-ductility concrete", ACI Mater. J., 110(4), 413-422.
  26. Tosun-Felekoglu, K., Godek, E., Keskinates, M. and Felekoglu, B. (2017), "Utilization and selection of proper fly ash in cost effective green HTPP-ECC design", J. Clean Prod., 149, 557-568. https://doi.org/10.1016/j.jclepro.2017.02.117
  27. Yang, E.H., Wang, S., Yang, Y. and Li, V.C. (2008), "Fiberbridging constitutive law of engineered cementitious composites", J. Adv. Concrete Technol., 6(1), 181-193. https://doi.org/10.3151/jact.6.181

피인용 문헌

  1. 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