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Geotechnical and Geological Engineering

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20.05.2020 | Original Paper

Strength and Consolidation Characteristics for Cement Stabilized Cohesive Soil Considering Consistency Index

verfasst von: Ahmed F. Zidan

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 5/2020

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Abstract

The undrained shear strength and consolidation characteristics for both remolded and stabilized soil are required in many geotechnical applications. In this paper a comprehensive laboratory work was carried out on cement-stabilized cohesive soil. The undrained shear strength of both untreated and treated soil at different consistency indices particularly at liquid and plastic limits has been determined based on direct and reverse extrusion tests. Furthermore, a series of oedometer test was performed in order to estimate the consolidation characteristics in terms of compression index, swelling index and yield stress of cement-stabilized soil in comparison to untreated soil. Three different soils available in Upper Egypt were extensively used under the influence of four different cement contents. Besides, the effect of curing period on soil strength and the variation of soil water content during treatment were also presented. The laboratory results were used to establish nonlinear regression formula for untreated soil combining the consistency index and undrained shear strength. The results indicated, through the variation of parameters, that the soil strength due to cement stabilization ranges between 152 and 625 times that for untreated soil at liquid limit. In addition, compression index for treatment soil decreased by about 92% to 37%.

Vorheriger Artikel Utilization of Fly Ash and Waste Ceramic in Improving Characteristics of Clayey Soil: A Laboratory Study

Nächster Artikel Compressibility and the Effects of Structure of Tropical Clay in Incremental Loading Oedometer Tests

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Titel: Strength and Consolidation Characteristics for Cement Stabilized Cohesive Soil Considering Consistency Index
verfasst von: Ahmed F. Zidan
Publikationsdatum: 20.05.2020
Verlag: Springer International Publishing
Erschienen in: Geotechnical and Geological Engineering / Ausgabe 5/2020
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-020-01367-6

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