Impact of cyclic wetting–drying on swelling behavior of lime-stabilized soil

Güney, Yücel; Sari, Dursun; Çetin, Murat; Tuncan, Mustafa

doi:10.1016/j.buildenv.2005.10.035

Cited by 207 publications

(82 citation statements)

References 17 publications

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“…Contrary to findings discussed above, Bin-Shafique et al experienced no significant effect on the UCS of compacted FA-stabilised fine-grained soils [66]. Opposite results to those found here have also been obtained: in [67][68][69][70], although stabilisation increased UCS, the strength of compacted clayey soils was adversely affected by wetting and drying cycles due to shrink-swell induced cracking and a gradual destruction of the pozzolanic reactions. As soils used here comprised relatively little clay, the adverse effects of shrink-swell cracking were avoided.…”

Section: Discussioncontrasting

confidence: 55%

Weathering’s beneficial effect on waste-stabilised rammed earth: a chemical and microstructural investigation

Arrigoni

Pelosato

Dotelli

et al. 2017

Construction and Building Materials

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Section: Discussioncontrasting

confidence: 55%

Weathering’s beneficial effect on waste-stabilised rammed earth: a chemical and microstructural investigation

Arrigoni

Pelosato

Dotelli

et al. 2017

Construction and Building Materials

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“…Il semble donc que les résultats mettent en évidence une dégra dation significative des effets initiaux du traitement à la chaux. Cette observation rejoint les conclusions obte nues par certains auteurs qui, en imposant des sollici tations hydriques intenses à des éprouvettes d'argile gonflante traitée à la chaux, avaient mis en évidence une dégradation des effets du traitement (Guney et al, 2007 ;Khattab et al, 2004).…”

Section: 2unclassified

“…Par ailleurs, il existe aussi quel ques études de laboratoire sur cette thématique. Guney et al (2007) ont imposé des cycles de séchage/humidification à une argile gonflante compactée traitée à la chaux. Ces auteurs ont montré que, bien que le poten tiel de gonflement de l'argile soit réduit immédiatement après le traitement à la chaux, il tend à augmenter de manière significative lorsque des cycles hydriques suc cessifs sont imposés.…”

Section: Introductionunclassified

Effets de sollicitations hydriques cycliques sur le gonflement d’un sol argileux traité à la chaux

Cuisinier¹,

Deneele

2010

Rev. Fr. Geotech.

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Impact of cyclic wetting and drying on the swelling properties of a lime-treated expansive clay AbstractLime addition is a very wide spread technique to improve the engineering behaviour of soils and it is known to reduce the swelling potential of expansive soils. However, in the long term, the permanence of that lime effect is questionable. Some authors have shown that a lime-treated expansive soil can recover its initial swelling/shrinkage ability after some successive wetting/ drying cycles. This question is of interest since lime might be used to prevent swelling of expansive soils in earthworks. An experimental study was undertaken to assess the effects of successive wetting/drying cycles on the swelling behaviour of lime-treated expansive soils. This study was conducted both on three-years-old field-samples coming from an experimental backfill and samples reconstituted in the laboratory. Osmotic suction-controlled oedometers were used to determine their swelling/shrinkage behaviour when submitted to wetting/ drying cycles. The results obtained on the reconstituted samples showed that the lime treatment can reduce dramatically the swelling capacity of an expansive soil. However, the limetreated samples taken from the experimental backfill exhibited important swelling and shrinkage deformations when submitted to successive wetting and drying. The obtained results clearly indicated that the lime treatment efficiency decreased with time.

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“…Several studies were performed to understand the effect of seasonal moisture fluctuations and their relative volumetric changes on long-term performance of chemically stabilized expansive clays (Dif and Bluemel 1991;Lin and Benson 2000;Rao et al 2001;Guney et al 2007;Khattab et al 2007;Cui et al 2011;. A brief overview of some of these studies is presented in the following sections followed by shortcomings of these studies.…”

Section: Documented Durability Studiesmentioning

confidence: 99%

“…It was observed that higher dosages of stabilizer improved UCS, stiffness, and durability of the specimens. Guney et al (2007) performed cyclic wetting/drying (from here on referred to as W/D) experiments to observe the effect of lime stabilization on the swelling potential of the soil. In this study, both swelling potential and swelling pressure tests were performed on untreated and lime-treated soil specimens subjected to cyclic W/D.…”

Section: Documented Durability Studiesmentioning

confidence: 99%

Addressing Clay Mineralogy Effects on Performance of Chemically Stabilized Expansive Soils Subjected to Seasonal Wetting and Drying

Chittoori

Puppala

Pedarla

2018

J. Geotech. Geoenviron. Eng.

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This is an author-produced, peer-reviewed version of this article. The final, definitive version of this document can be found online at Journal of Geotechnical and Geoenvironmental Engineering, published AbstractPremature failures in chemically stabilized expansive soils cause millions of dollars in maintenance and repair costs. One of the reasons for these failures is the inability of existing stabilization design guidelines to consider the complex interactions between clay minerals and the stabilizers. It is vital to understand these complex interactions, as they are responsible for the strength improvement and swell/shrink reduction in these soils, in turn affecting the overall health of the infrastructure. Hence, this research study examined the longevity of chemically stabilized expansive soils subjected to wetting/drying conditions with a major focus on clay mineralogy. Eight different natural soils with varying clay mineralogy were subjected to wetting/drying durability studies after stabilizing with chemical additives including quicklime and cement. Performance indicators such as volumetric strain and Unconfined compressive strength trends were monitored at regular intervals during the wetting/drying process. It was observed that clayey soils dominant in the mineral Montmorillonite were susceptible to premature failures. It was also noted that soils dominant in other clay minerals exhibited early failures at lower additive contents. Also, an attempt was made for the first time to address the field implications of the laboratory studies by developing a correlation that predicts service life in the field based on clay mineralogy and stabilizer dosage.

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Impact of cyclic wetting–drying on swelling behavior of lime-stabilized soil

Cited by 207 publications

References 17 publications

Weathering’s beneficial effect on waste-stabilised rammed earth: a chemical and microstructural investigation

Weathering’s beneficial effect on waste-stabilised rammed earth: a chemical and microstructural investigation

Effets de sollicitations hydriques cycliques sur le gonflement d’un sol argileux traité à la chaux

Addressing Clay Mineralogy Effects on Performance of Chemically Stabilized Expansive Soils Subjected to Seasonal Wetting and Drying

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