Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Engineering Properties of Volcanic Ash-Cement Soil Mixtures and Zeolite-Cement Soil Mixtures

화산재-시멘트 혼합토 및 제올라이트-시멘트 혼합토의 공학적 특성

  • 이충원 (강원대학교 석재복합건설신소재연구소) ;
  • 장동수 (강원대학교 대학원 지역건설공학과) ;
  • 박성용 (강원대학교 대학원 지역건설공학과) ;
  • 연규석 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 김용성 (강원대학교 농업생명과학대학 지역건설공학과)
  • Received : 2013.02.21
  • Accepted : 2013.03.21
  • Published : 2013.03.31
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Abstract

In this study, the engineering characteristics of volcanic ash-cement soil mixtures and zeolite-cement soil mixtures are investigated by using unconfined compression test, freezing-thawing test, SEM and XRD analysis. The samples were mixed with volcanic ash from Mt. Baekdusan or porous zeolite, and cement as the ratios of 3.5:1, 4.0:1, 4.5:1, 5.0:1 with and without metakaolin. It is confirmed that compressive strength degraded with increasing of the amount of volcanic ash or zeolite, and increased with addition of metakaolin as a binder. Moreover, test results suggested that the mixtures provided sufficient freezing-thawing resistance. In addition, ettringite as a product of cement hydration was detected by SEM and XRD, and that possibly contributes to the strength of the mixtures.

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References

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