Computers and Concrete

  • 제23권4호
  • /
  • Pages.245-253
  • /
  • 2019
  • /
  • 1598-8198(pISSN)
  • /
  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Behavior of hybrid concrete beams with waste rubber

  • Al-Azzawi, Adel A. (Civil Engineering Department, College of Engineering, Al-Nahrain University) ;
  • Saad, Noora (Civil Engineering Department, College of Engineering, Al-Nahrain University) ;
  • Shakir, Dalia (Civil Engineering Department, College of Engineering, Al-Nahrain University)
  • 투고 : 2018.05.12
  • 심사 : 2019.03.25
  • 발행 : 2019.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

The studies on the applications of waste materials in concrete have been increased in Iraq since 2003. In this research, rubber wastes that resulting from scrapped tires was added to concrete mix with presence of superplasticizer. The mechanical properties of concrete and workability of concrete mixes were studied. The used rubber were ranging in size from (2-4) mm with addition percentages of (0.1% and 0.2%) by volume of concrete. The results of mechanical properties of concrete show that rubber enhance the ductility, and compressive and tensile strength compared to concrete without it. Also, the flexural behavior of hybrid strength concrete beams (due to using rubber at the bottom or top layer of section) was investigated. The rubber concrete located at bottom layer gives higher values of ultimate loads and deflections compared to the beam with top layer. A similar response to fiber concrete beam (all section contains 0.1% rubber) was recognized. Finite element modeling in three dimensions was carried for the tested beams using ABAQUS software. The ultimate loads and deflection obtained from experimental and finite elements are in good agreements with average difference of 8% in ultimate load and 20% in ultimate deflection.

키워드

참고문헌

  1. ACI Committee 318 (2011), Building Code Requirements for Structural Concrete, American Concrete Institute, Farmington Hills, Michigan.
  2. Al-Azzawi, A.A. (2017), "Behavior of lightweight coarse aggregate RC beams with circular opening", Am. J. Appl. Sci., 14(4), 436-446. https://doi.org/10.3844/ajassp.2017.436.446
  3. Al-Tayeb, M.M., Abu Bakar, B.H., Akil, H.M. and Ismail, H. (2013), "Performance of rubberized and hybrid rubberized concrete structures under static and impact load conditions", Exp. Mech., 53, 377-384. https://doi.org/10.1007/s11340-012-9651-z
  4. ASTM A615 (2005), Standard Specification for Deformed and Plain Carbon Structural Steel Bars for Concrete Reinforcement, Manual Book of ASTM Standards.
  5. ASTM C 33 (2005), Standard Specification for Concrete Aggregates, Manual Book of ASTM Standards, West Conshohocken, United States.
  6. ASTM C150 (2012), Standard Specification for Portland Cement, Manual Book of ASTM Standards, West Conshohocken, United States.
  7. Bing, C. and Ning, L. (2014), "Experimental research on properties of fresh and hardened rubberized concrete", J. Mater. Civil Eng., 26(8), 04014040. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000923
  8. Ganjian, E., Khorami, M. and Maghsoudi, A. (2009), "Scrap-tyrerubber replacement for aggregate and filler in concrete", Constr. Build. Mater, 23, 1828-1836. https://doi.org/10.1016/j.conbuildmat.2008.09.020
  9. Ge, W.J., Ashour, A.F., Ji, X., Cai, C. and Cao, D. (2018), "Flexural behavior of ECC-concrete composite beams reinforced with steel bars", Constr. Build. Mater., 159, 175-188. https://doi.org/10.1016/j.conbuildmat.2017.10.101
  10. Gupta, T., Sharma, R.K. and Chaudhary, S. (2015), "Impact resistance of concrete containing waste rubber fiber and silica fume", Int. J. Impact Eng., 83, 76-87. https://doi.org/10.1016/j.ijimpeng.2015.05.002
  11. Iraqi Specification No. 45 (1984), Aggregate from Natural Sources for Concrete, Central Agency for Standardization and Quality Control, Planning Council, Baghdad, Iraq. (translated from Arabic)
  12. Katzer, J. (2013), "Strength performance comparison of mortars made with waste fine aggregate and ceramic fume", Constr. Build. Mater., 47, 1-6. https://doi.org/10.1016/j.conbuildmat.2013.04.039
  13. Kh, H.M., Ozakca, M., Ekmekyapar, T. and Kh, A.M. (2016), "Flexural behavior of concrete beams reinforced with different types of fibers", Comput. Concrete, 18(5), 999-1018. https://doi.org/10.12989/cac.2016.18.5.999
  14. Maalej, M. and Li, V.C. (1995), "Introduction of strain hardening engineered cementitious composites in design of reinforced concrete flexural members for improved durability", ACI Struct. J., 92(2), 167-176.
  15. Seitl, S., Viszlay, V., Domski, J. and Katzer, J. (2017), "Fracture mechanical properties of cement based composites with various amount of waste aggregates", Procedia Eng., 190, 345-351. https://doi.org/10.1016/j.proeng.2017.05.347
  16. Zarrin, O. and Khoshnoud, H.R. (2016), "Experimental investigation on self-compacting concrete reinforced with steel fibers", Struct. Eng. Mech., 59(1), 133-151. https://doi.org/10.12989/sem.2016.59.1.133
  17. Zhang, J., Leung, C.K.Y. and Cheung, Y.N. (2006), "Flexural performance of layered ECC-concrete composite beam", Compos. Sci. Technol., 66(11-12), 1501-1512. https://doi.org/10.1016/j.compscitech.2005.11.024
  18. Zheng, L., Sharon Huo, X. and Yuan, Y. (2008), "Strength, modulus of elasticity, and brittleness index of rubberized concrete", J. Mater. Civil Eng., 20(11), 692-699. https://doi.org/10.1061/(ASCE)0899-1561(2008)20:11(692)