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Shear and CBR Characteristics of Dredge Soil-Bottom Ash-Waste Tire Powder-Mixed Lightweight Soil

준설토-저회-폐타이어 혼합경량토의 전단 및 CBR 특성

Kim, Yun-Tae;Kang, Hyo-Sub
김윤태;강효섭

  • Received : 2011.03.18
  • Accepted : 2011.06.20
  • Published : 2011.06.30

Abstract

This study investigated the shear and CBR characteristics of dredge soil-bottom ash-waste tire powder-mixed lightweight soil, which was developed to recycle dredged soil, bottom ash, and waste tire powder. Test specimens were prepared with various contents of waste tire powder ranging from 0 to 100% at 50% intervals by the weight of the dry dredged soil. Several series of triaxial compression tests and CBR tests were conducted. The shear strength characteristics of the lightweight soil were compared using two different shear tests (triaxial compression test and direct shear test). The experimental results indicated that the internal friction angle of the lightweight soil obtained by the direct shear tests was greater than that by the triaxial shear tests. However, the cohesion value obtained by the triaxial shear tests was greater than that by the direct shear tests. The CBR value of the lightweight soil decreased from 35% to 15% as waste tire powder content increased.

Keywords

Recycling;Waste tire powder;Lightweight soil;Triaxial compression test;CBR test

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Cited by

  1. Characteristics of Sedimentation and Consolidation for Song-Do Dredged Soil vol.14, pp.5, 2014, https://doi.org/10.9798/KOSHAM.2014.14.5.371

Acknowledgement

Supported by : 한국연구재단