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J. Ocean Eng. Technol. > Volume 25(3); 2011 > Article
J. Ocean Eng. Technol. 2011;25(3):34-39.    
DOI: https://doi.org/10.5574/KSOE.2011.25.3.034   

Shear and CBR Characteristics of Dredge Soil-Bottom Ash-Waste Tire Powder-Mixed Lightweight Soil
Kim Yun-Tae,Kang Hyo-Sub
Department of Ocean Engineering Pukyong National University,Geotechnical Dept. Dodam E&C
준설토-저회-폐타이어 혼합경량토의 전단 및 CBR 특성
김윤태,강효섭
부경대학교 해양공학과,도담 E&C 지반공학부
Copyright © 2011 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Key Words: Recycling, Waste tire powder, Lightweight soil, Triaxial compression test, CBR test
핵심용어: 재활용, 폐타이어 분말, 경량토, 삼축압축시험, 노상토 지지력비 시험
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.


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