Effect of fines content and void ratio on the saturated hydraulic conductivity and undrained shear strength of sand–silt mixtures

Belkhatir, Mostefa; Schanz, Tom; Arab, Ahmed

doi:10.1007/s12665-013-2289-z

Cited by 88 publications

(24 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This observation readily presents the role of clays and fines in reducing permeability of soil materials. [18,19,20].…”

Section: Permeability (K)mentioning

confidence: 99%

Assessment of the Implications of Geotechnical Properties of Soils in Otukpa Area of Ogbadibo LGA, Benue State, Nigeria

Ameh¹,

Ogbonnaya²,

Lawal³

et al. 2018

JGG

View full text Add to dashboard Cite

This study evaluates the index and engineering properties of soils in Otukpa Area of Benue State towards ascertaining their suitability for use as fill and embankment, sub-base and base course material. Otukpa in Benue state Nigeria has vast reserve of sand and other aggregate materials that are presently been mined for various construction purposes. The area holds good potential for human population explosion in the near future. When massive infrastructural development commences, localized sourcing of materials would be necessary. Unfortunately, not much is known of the geotechnical properties of the sands in this area. Index and engineering test was conducted to achieve the aim. Gravel size particles are completely absent. Permeability of soil ranged from 7.8×10 -6 to 3.36×10 -4 m/sec with moisture content of 11.38 to 14.16%. Specific gravity was between 2.63 to 2.67g/cm 3 . UCS range from 31-45Kpa while LL and PL ranged between 27-35% and 10-18% respectively. MDD peak value was 1.85(g/cm 3 ) at an OMC of 12.11% and lowest at 1.67(g/cm 3 ) at an OMC of 11.99. The geotechnical implication of the observed properties range from susceptibility to marginal volume change, differential settlement to low shearing resistance. These materials are quality reserves for fill, embankment and sub-base construction but not for bases.

show abstract

“…This observation readily presents the role of clays and fines in reducing permeability of soil materials. [18,19,20].…”

Section: Permeability (K)mentioning

confidence: 99%

Assessment of the Implications of Geotechnical Properties of Soils in Otukpa Area of Ogbadibo LGA, Benue State, Nigeria

Ameh¹,

Ogbonnaya²,

Lawal³

et al. 2018

JGG

View full text Add to dashboard Cite

show abstract

“…e saturated hydraulic conductivity of the sand-silt mixtures was obtained by triaxial tests at an effective confining pressure of 100 kPa to establish the relationship between the undrained shear strength and the saturated hydraulic conductivity and discussed the effect of the percentage of low plastic fines and void ratio of the soil [7]. Li [8] studied the relationship between permeability and porosity in loess.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Saturated Compacted Loess Permeability under K₀ Consolidation

Hao

Wang

Jin

et al. 2020

Advances in Civil Engineering

View full text Add to dashboard Cite

This paper investigates the permeability characteristics of compacted loess by focusing on the anisotropy parallel and perpendicular to the compaction. Three tests are conducted on compacted loess: triaxial permeability test under confining pressure consolidation, triaxial permeability test under K0 consolidation, and SEM test. Samples are maintained and tested at different dry densities under saturated conditions. The test results show that the saturated permeability coefficient of compacted loess is exponentially related to the initial dry density under both confining pressure consolidation and K0 consolidation. The fitting equation can estimate the saturated permeability coefficient of compacted loess at different depths. The horizontal saturated permeability coefficient of compacted loess is larger than that in the vertical direction, showing obvious anisotropy. The saturated permeability anisotropy ratio is linearly related to the initial dry density. Comparing and analysing the saturated permeability coefficient, the saturated permeability coefficient of compacted loess under the K0 consolidation condition is smaller than that under the confining pressure consolidation condition. Under the condition of K0 consolidation, the connectivity of vertical and horizontal pores of compacted loess is weakened, the tortuosity is strengthened, and the void ratio is decreased. K0 consolidation makes the flake-, plate-, and needle-like particles in compacted loess rotate continuously parallel to the compaction surface, which enhances the orientation of particles and leads to the saturated permeability anisotropy increase. The research results provide the basis for water field analysis in loess filling engineering.

show abstract

“…The depth of extraction varied between 4.0-8.0 m. One was medium sand consisting of rounded particles named Chlef sand, while the other was fine sand with rounded particles named Rass sand. Numerous tests were carried out on this sand [5], [8], [17], [27]. Chlef sand, as the name suggests, comes from the Oued Chlef which crosses the city of Chlef (North Algeria).…”

Section: Soilsmentioning

confidence: 99%

A Laboratory Investigation on Shear Strength Behavior of Sandy Soil: Effect of Glass Fiber and Clinker Residue Content

Bouaricha

Henni

Lancelot

2017

Studia Geotechnica Et Mechanica

View full text Add to dashboard Cite

Abstract:A study was undertaken to investigate the shear strength parameters of treated sands reinforced with randomly distributed glass fibers by carrying out direct shear test after seven days curing periods. Firstly, we studied the fiber content and fiber length effect on the peak shear strength on samples. The second part gives a parametric analysis on the effect of glass fiber and clinker residue content on the shear strength parameters for two types of uniform Algerian sands having different particle sizes (Chlef sand and Rass sand) with an average relative density Dr = 50%. Finally, the test results show that the combination of glass fiber and clinker residue content can effectively improve the shear strength parameters of soil in comparison with unreinforced soil. For instance, there is a significant gain for the cohesion and friction angle of reinforced sand of Chlef. Compared to unreinforced sand, the cohesion for sand reinforced with different ratios of clinker residue increased by 4.36 to 43.08 kPa for Chlef sand and by 3.1 to 28.64 kPa for Rass sand. The feature friction angles increased from 38.73° to 43.01° (+4.28°), and after the treatment, clinker residue content of soil evaluated to 5% (W RC = 5%).

show abstract

Effect of fines content and void ratio on the saturated hydraulic conductivity and undrained shear strength of sand–silt mixtures

Cited by 88 publications

References 19 publications

Assessment of the Implications of Geotechnical Properties of Soils in Otukpa Area of Ogbadibo LGA, Benue State, Nigeria

Assessment of the Implications of Geotechnical Properties of Soils in Otukpa Area of Ogbadibo LGA, Benue State, Nigeria

Experimental Study on the Saturated Compacted Loess Permeability under K₀ Consolidation

A Laboratory Investigation on Shear Strength Behavior of Sandy Soil: Effect of Glass Fiber and Clinker Residue Content

Contact Info

Product

Resources

About

Effect of fines content and void ratio on the saturated hydraulic conductivity and undrained shear strength of sand–silt mixtures

Cited by 88 publications

References 19 publications

Assessment of the Implications of Geotechnical Properties of Soils in Otukpa Area of Ogbadibo LGA, Benue State, Nigeria

Assessment of the Implications of Geotechnical Properties of Soils in Otukpa Area of Ogbadibo LGA, Benue State, Nigeria

Experimental Study on the Saturated Compacted Loess Permeability under K0 Consolidation

A Laboratory Investigation on Shear Strength Behavior of Sandy Soil: Effect of Glass Fiber and Clinker Residue Content

Contact Info

Product

Resources

About

Experimental Study on the Saturated Compacted Loess Permeability under K₀ Consolidation