Influence of Mixing Conditions on the Strength of Solidified Sandy Soils with Cement

배합조건이 시멘트혼합 사질토의 강도에 미치는 영향

  • 유찬 (농업기반공사 환경복원 기획팀) ;
  • 장병욱 (서울대학교 농업생명과학대학)
  • Published : 2001.11.01

Abstract

Laboratory experiment was performed to evaluate the influence of mixing conditions to the strength of solidified sandy soils with cement. The major physical factors considered in this experiment were the fine particles content(<$\sharp200%$), cement content(%) and water-cement ratio, and unconfined compressive strength test was performed on the samples at 7 and 28 cured day. The results of tests shows that when the cement content is relatively low (7~10 percents) the fine content in the sandy soils is very important, but when cement content is high the water-cement ratio became more important. It was appeared that in the range of the cement content of 7~10 percents, about 20~30 percents of fine content to the total sample weight is the optimum condition to get the maximum strength. In the case of the cement content of 13 percents, the strength of sample was considerably affected by the water-cement ratio rather than the fine content. In this paper, empirical equations were also developed and evaluated to verify the relationship among three factors by the multi-regression analysis.

Keywords

References

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