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논문 기본 정보

자료유형
학술저널
저자정보
Yasodian, Sheela Evangeline (Department of Civil Engineering, College of Engineering Trivandrum) Dutta, Rakesh Kumar (Department of Civil Engineering, National Institute of Technology) Mathew, Lea (Department of Civil Engineering, College of Engineering Trivandrum) Anima, T.M. (Department of Civil Engineering, College of Engineering Trivandrum) Seena, S.B. (Department of Civil Engineering, College of Engineering Trivandrum)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제4권 제2호
발행연도
2012.1
수록면
135 - 150 (16page)

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This paper presents the study of the effect of microorganism Bacillus pasteurii on the properties such as Atterbergs' limit and unconfined compressive strength of cohesive soils. The results of this study reveal that the liquid limit and plasticity index for all clay soils decreased and the unconfined compressive strength increased. Decrease in plasticity index is very high for Kuttanad clay followed by bentonite and laterite. The unconfined compressive strength increased for all the soils. The increase was high for Kuttanad soil and low for laterite soil. After 24 h of treatment the improvement in the soil properties is comparatively less. Besides the specific bacteria selected Bacillus pasteurii, other microorganisms may also be taking part in calcite precipitation thereby causing soil cementation. But the naturally present microorganisms alone cannot work on the calcite precipitation.

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