The role of clay fractions of marly soils on their post stabilization failure

Ouhadi, V R; Yong, Raymond N.

doi:10.1016/s0013-7952(03)00104-2

Cited by 40 publications

(19 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is similar to that adopted by Fookes (1988) and Ouhadi & Yong (2003) for carbonate-clay-quartz bearing rocks. The classification is thus based on the proportions of the following constituents:…”

Section: Increasing Non-carbonate Contentsupporting

confidence: 90%

Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE

Macklin

Ellison

Manning

et al. 2011

Bull Eng Geol Environ

View full text Add to dashboard Cite

This paper describes, from field exposures, temporary excavations and borehole core, the pedogenically altered fluvial deposits found in the UAE termed the Barzaman Formation. This formation comprises a sequence of rocks dominated by variably cemented conglomerates thought to be middle Miocene to Pliocene in age. The sequence is interpreted as an alluvial fan succession (or "bajada") laid down in response to uplift and erosion of the Hajar Mountains. A ground model for this formation is described to explain the distinct lithological features of the formation, comprising terrestrial fluvial and alluvial plain deposits that have been modified by cementation and dolomitisation, duricrust formation and pedogenic processes during arid periods over repeated climatic cycles. Four principle lithologies thus typically occur as a rhythmic alternation of a basal conglomerate (composed predominantly of clasts of ophiolite and chert) overlain by an irregular bed of white conglomerate and "calcisiltite" and passing upwards into a pale grey to green clay and siltstone "breccia". The white conglomerate and calcisiltite largely represent deposits of dolomite-palygorskite duricrust. The well established Clarke & Walker (1979) descriptive scheme currently used for describing the formation is reviewed and a simple visual descriptive lithological classification proposed. The classification is described in terms of the three principal lithological components visible in hand specimen: mottled white calcisiltite matrix/cement, palygorskite rich marl and clasts derived from the Oman Mountains (gabbro, chert and weathered ultramafic rock). Data on the mineralogy and microstructure of the rock constituents is also presented and some implications for geotechnical characterisation of the formation briefly discussed.

show abstract

Section: Increasing Non-carbonate Contentsupporting

confidence: 90%

Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE

Macklin

Ellison

Manning

et al. 2011

Bull Eng Geol Environ

View full text Add to dashboard Cite

show abstract

“…where 1/K � D L , i.e., thickness of double layer (cm), D � dielectric constant, k � Boltzmann constant � 1.38 * 10 −23 J/K, η 0 � bulk solution of the electrolyte concentration (ions/cm 3 ), ε � unit electronic charge (esu), T � absolute temperature (K), and v � cation valence. Note that D L is directly proportional to the cation exchange capacity (CEC) and specific surface area (SSA) of clay minerals and has pronounced effect on these entities [27][28][29]. e clay minerals belong to "phyllosilicates" family and carry a net residual negative charge.…”

Section: Fundamental Knowledge About Stabilization Of Expansive Soilsmentioning

confidence: 99%

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Jalal

Jamhiri

et al. 2020

Advances in Materials Science and Engineering

102

View full text Add to dashboard Cite

Calcium-based stabilizer materials (CSMs) exhibit pozzolanic properties which improve the properties of clayey soils by hydration, cation exchange, flocculation, pozzolanic reaction, and carbonation. In this comprehensive review, comprising over past three decades from 1990 to 2019, a mechanistic literature of expansive soil stabilization by incorporating CSMs is presented by reviewing 183 published research articles. The advantages and disadvantages of CSMs as the ground stabilizing agent are succinctly presented, and the major outcomes of physicochemical effects on soil properties are discussed in detail. After blending with CSM, the main and interaction effects on soil properties with focus on chemical processes such as X-ray fluorescence, X-ray diffraction analyses, and microstructure interaction by using scanning electron microscopy and thermogravimetric analysis have been reviewed in light of findings of past researchers. This work will help geotechnical engineers to opt for suitable CSM in the field of geoenvironmental engineering in committing to sustainable construction of civil engineering structures over expansive soils.

show abstract

“…The clay soils, due to the specific capability at the molecular level, would have a special interaction with the contaminants causing all or a portion of the hazardous substances in the solution to be assimilated [8]. This property has made clay soils with Bentonite in them as choice base liner materials for underlying industrial and municipal waste landfills when exposed to intensive physical-chemical attacks by the leachates of the wastes.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Adsorption of Lead (II) by Bentonite Enriched with pH-adjusted Meranti Sawdust

Mohajeri¹,

Smith²,

Selamat³

et al. 2018

Preprint

View full text Add to dashboard Cite

In recent years, the need for safe and modern composite barrier for the prevention of groundwater contamination and the provision of Geo-environmental protection has been studied together with the need of designing low cost and effective liner for isolating landfill contents from the environment. In this study, various mix designs involving two natural adsorbents, the Na-Bentonite and the pH-adjusted sawdust were prepared for a series of Geo-environmental experiments to be carried out to determine the adsorption capacity, buffering capacity, pH changes, and COD changes among others, in the presence of Pb(NO3)2 contaminant concentrations. Generally, the results showed an increase in adsorption capacity in the acidic segment of the treatment. An increase of 58% of the adsorption efficiency of the Na-Bentonite in adsorbing the contaminant at the highest concentration was the most important achievement of the system while in the acidic segment.

show abstract

The role of clay fractions of marly soils on their post stabilization failure

Cited by 40 publications

References 7 publications

Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE

Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Enhancing the Adsorption of Lead (II) by Bentonite Enriched with pH-adjusted Meranti Sawdust

Contact Info

Product

Resources

About