Engineering Properties of Flowable Composite Soil with Waste Tire and Bottom Ash

J. Ocean Eng. Technol. 2010;24(3):52-58.

Kim Yun-Tae,Kang Hyo-Sub

Department of Ocean Engineering Pukyong National University,Geotechnical & Tunnel Dept. Dodam Engineering & Construction CO. LTD

폐타이어-저회가 혼합된 유동성 복합지반재료의 공학적 특성

김윤태,강효섭

부경대학교 해양공학과,도담이앤씨 지반터널부

Keywords: Recycling, Bottom ash, Waste tire powder, Unconfined compressive test, Flow test

핵심용어: 재활용, 저회, 폐타이어 분말, 일축압축시험, 유동성 시험

Abstract

This study investigated the engineering properties of waste tire powder-bottom ash added composite soil, which was developed to recycle dredged soil, bottom ash, and waste tire powder. Test specimens were prepared using 5 different percentages of waste tire powder content(0%, 25%, 50%, 75%, and 100% by weight of the dry dredged soil), three different percentages of bottom ash content (0%, 50%, and 100% by weight of the dry dredged soil), and three different particle sizes of waste tire powder (0.1~2 mm, 0.9~5 mm, and 2~10 mm). Several series of unconfined compression tests, direct shear tests, and flow tests were conducted. The experimental results indicated that the waste tire powder content, particle size of waste tire powder, and bottom ash content influenced the strength and stress-strain behavior of the composite soil. The flow value increased with an increase in water content, but decreased with an increase in waste tire powder content.