Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
권호 표지
DOI QR코드

DOI QR Code

Comparison of Shear Properties of Crumb Rubber-Bottom Ash Mixture Considering Reinforcement Types of Waste Fishing Net

폐어망 보강형식에 따른 폐타이어-저회 혼합토의 전단특성 비교

  • Received : 2012.03.23
  • Accepted : 2012.08.23
  • Published : 2012.09.28
Download PDF
⟨ Previous Next ⟩

Abstract

This paper investigates the shear properties of crumb rubber-bottom ash mixture reinforced by waste fishing net (WFN). Mixtures used in this experiment consist of crumb rubber and bottom ash (2mm~10mm) with the same weight ratio. In this study several series of direct shear tests were carried out on the five different specimens : unreinforced mixture, reinforced mixtures with 1 or 2 single-layered WFN, reinforced mixtures with 1 or 2 double-layered WFN. The experimental results indicated that the shear properties of reinforced crumb rubber-bottom ash mixture were strongly influenced by reinforcing layer of WFN. It was found that the shear strength and internal friction angle of the mixtures increased with an increase in reinforcing layer of WFN due to interlocking effect and friction between mixture and WFN.

본 연구에서는 폐어망 보강형식에 따른 폐타이어-저회 혼합토의 전단특성을 고찰하였다. 실험에 사용된 혼합토는 폐타이어(분말입경 2mm~10mm)와 저회를 동일한 무게비로 구성하였으며, 준비된 혼합토에 폐어망 보강 시 층수와 겹수를 달리하여 보강함으로써 5종류의 시편(무보강 혼합토, 1층 혹은 2층 보강 혼합토, 2겹 1층 혹은 2층 보강 혼합토)이 만들어졌다. 직접전단시험을 수행한 결과 폐어망 보강 혼합토의 역학적 특성은 폐어망 보강 층수와 보강 겹수에 크게 의존하는 것을 알 수 있다. 폐어망 보강 층수와 보강 겹수가 증가함에 따라 혼합토의 전단강도와 내부마찰각은 증가한다. 이것은 보강된 폐어망과 혼합토 입자간의 마찰 및 억물림 효과에 기인하는 것으로 판단된다.

Keywords

References

  1. Kim, D. A. (1985), Fishing gear technology, Kyomoon publishing company.
  2. Kaniraj, S. R. and Gayathri, V. (2003), "Geotechnical behavior of fly ash mixed with randomly oriented fiber inclusions", Geotextiles and Geomembranes, Vol.21, No.3, pp.123-149. https://doi.org/10.1016/S0266-1144(03)00005-0
  3. Kim, S. D., Jeon, J. K., and You, K. S. (2001), "Pyrolysis Reaction Mechanisms of PE, PP, NY of Major Components of Spent Fishing Ropes and Nets", Journal of material cycles and waste management, Vol.18, No.4, pp.410-418.
  4. Kim, Y. T. and Kang, H. S. (2008), "Mechanical Properties of Waste Tire Powder-Added Lightweight Soil", Korean Society of Civil Engineers, Vol.28, No.4C, pp.247-253.
  5. Kim, Y. T. and Kang, H. S. (2010), "Shear Properties of Waste Tire-Bottom Ash Mixture with Different Particle Size of Waste Tire", Korean Geotechnical Society, Vol.26, No.2, pp.55.-62.
  6. Kim, Y. T. and Kang, H. S. (2011), "Engineering Characteristics of Rubber-added Lightweight Soil as a Flowable Backfill Material", Journal of Materials in Civil Engineering, ASCE, Vol.23, No.9, September 1, 2011, pp.1289-1294. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000307
  7. Kim, Y. T., Kim, H. J., and Lee, G. H. (2008), "Mechanical behavior of lightweight soil reinforced with waste fishing net", Geotextiles and Geomembranes, Vol.26, pp.512-518. https://doi.org/10.1016/j.geotexmem.2008.05.004
  8. Korea Institute of Construction Technology. (1999), "Engineering Properties of Various Geogrid Types and Their Field Applications".
  9. Long, P. V., Bergado, D. T., and Abuel-Naga, H. M. (2007), "Geosynthetics reinforcement application for tsunami reconstruction; evaluation of interface parameters with silty sand and weathered clay", Geotextiles and Geomembranes, Vol.25, No.4-5, pp.311-323. https://doi.org/10.1016/j.geotexmem.2007.02.007
  10. Park, T. and Tan, S. A. (2005), "Enhanced performance of reinforced soil walls by the inclusion of short fiber", Geotextiles and Geomembranes, Vol.23, No.4, pp.348-361. https://doi.org/10.1016/j.geotexmem.2004.12.002
  11. Prabakar, J. and Sridhar, R. S. (2002), "Effect of random inclusion of sisal fibre on strength behavior of soil", Construction and Building Materials, Vol.16, pp.123-131. https://doi.org/10.1016/S0950-0618(02)00008-9
  12. Sawwaf, M. A. E. (2007), "Behavior of strip footing on geogridreinforced sand over a soft clay slope", Geotextiles and Geomembranes, Vol.25, No.1, pp.50-60. https://doi.org/10.1016/j.geotexmem.2006.06.001
  13. Vidal, H. (1969), "The Principle of Reinforced Earth", Highway Research Record No. 282.
  14. Yetimoglu, T., Inanir, M., and Inanir, O. E. (2005), "A study on bearing capacity of randomly distributed fiber-reinforced sand fills overlying soft clay", Geotextiles and Geomembranes, Vol.23, No.2, pp.174-183. https://doi.org/10.1016/j.geotexmem.2004.09.004
  15. Yetimoglu, T. and Salbas, O. (2003), "A study on shear strength of sands reinforced with randomly distributed discrete fibers", Geotextiles and Geomembranes, Vol.21, pp.103-110. https://doi.org/10.1016/S0266-1144(03)00003-7
  16. Zhang, M. X., Javadi, A. A., and Min, X. (2006), "Triaxial tests of sand reinforced with 3D inclusions", Geotextiles and Geomembranes, Vol.24, No.4, pp.201-209. https://doi.org/10.1016/j.geotexmem.2006.03.004
  17. Zhang, M. X., Zhou, H., Javadi, A. A., and Wang, Z. W. (2008), "Experimental and theoretical investigation of strength of soil reinforced with multi-layer horizontal-vertical orthogonal elements", Geotextiles and Geomembranes, Vol.26, No.1, pp.1-13. https://doi.org/10.1016/j.geotexmem.2007.06.001

Cited by

  1. 삼축압축시험에 의한 폐어망 보강 저회-폐타이어 혼합토의 전단특성 vol.29, pp.9, 2013, https://doi.org/10.7843/kgs.2013.29.9.81
  2. 폐어망을 이용한 섬유보강 콘트리트의 적용성 연구 vol.16, pp.6, 2012, https://doi.org/10.7855/ijhe.2014.16.6.087