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Bearing Capacity of Pavement Foundation by Waste Lime Material using the Dynamic Cone Pentrometer

동적 콘관입시험기를 이용한 폐석회 혼합 도로노반 성토체의 현장 지지력 평가

  • 김영석 (한국건설기술연구원 지반연구실) ;
  • 홍승서 (한국건설기술연구원 지반연구실) ;
  • 배규진 (한국건설기술연구원 지반연구실)
  • Received : 2010.11.16
  • Accepted : 2011.02.10
  • Published : 2011.02.28

Abstract

In-situ California Bearing Ratio(CBR) test has been widely used for evaluating the subgrade condition in pavements. However, because the in-situ CBR test is expensive and takes time for operation, it is difficult to figure out the in-situ characteristics of subgrade strength in detail. For faster and economical operation, the Dynamic Cone Penetrometer(DCP) has been often utilized for estimating the subgrade strength in the field. The purpose of this paper is to determine the relationship between CBR value and DCP index of the embankment constructed with mixtures of soil and waste lime. Waste lime used in this study is producted as a by-product in the manufacturing process of making $Na_2CO_3$ from local chemical factory in Incheon. In this field measurement, the geotechnical tests such as field water content, field density, field CBR test, and dynamic cone penetration test were conducted.

Keywords

Waste lime;Subgrade;California Bearing Ratio(CBR);Dynamic Cone Penetrometer(DCP)

Acknowledgement

Supported by : 한국건설기술연구원

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