Thermoplasticity of Saturated Clays: Experimental Constitutive Study

Hueckel, Tomasz; Baldi, G.

doi:10.1061/(asce)0733-9410(1990)116:12(1778)

Cited by 319 publications

(197 citation statements)

References 18 publications

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“…Similar conclusion was reported by Eriksson (1989). On the other hand, Campanella and Mitchell (1968) and Hueckel and Baldi (1990) have shown that the slope of the swelling line is temperature independent. This discrepancy can be explained in terms of the diŠerences in the test procedures adopted by each researcher.…”

Section: Ešect Of Temperature On the Swelling Line Kmentioning

confidence: 98%

Effect of Temperature on Shear Strength and Yielding Behavior of Soft Bangkok Clay

Abuel-Naga

Bergado

Lim

2007

Soils and Foundations

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Section: Ešect Of Temperature On the Swelling Line Kmentioning

confidence: 98%

Effect of Temperature on Shear Strength and Yielding Behavior of Soft Bangkok Clay

Abuel-Naga

Bergado

Lim

2007

Soils and Foundations

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“…The effect of temperature on the volume change behaviour of saturated soils has been investigated by a number of researchers such as Plum and Esrig (1969), Houston et al (1985), Hueckel and Baldi (1990), Boudali et al (1994), Delage et al (2000), Graham et al (2001), Villar and Lloret (2004), Romero et al(2005) and Tang et al (2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal history on the properties of bentonite

Estabragh

Khosravi²

2016

Environ Earth Sci

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The effect of thermal history on the properties of bentonite was studied through a number of experimental tests. The desired thermal history was created on samples of bentonite by keeping them at a fixed temperature (50, 100, 150, 200 and 250 o C) for a specific duration (3, 7, 14 and 30 days). Standard compaction, Atterberg limits, free swelling and swelling pressure tests were carried out on the samples on the dry side of optimum, optimum and wet side of optimum of the compaction curve with desired thermal history. In addition chemical tests were carried out on the flooding water at the end of the swelling test. The results showed that the changes in compaction characteristics were not considerable but the Atterberg limits, free swelling and swelling pressure of the soil were changed due to the thermal history in comparison with the soil without any thermal history. The magnitudes of free swelling and swelling pressure were dependent on the location of prepared sample on the compaction curve. In addition, the changes in Atteberg limits and swelling parameters (amount of free swelling and swelling pressure) were functions of magnitude of temperature and duration of time that the sample experienced the temperature in its temperature history. The effects of temperature and also duration of exposure of the soil to temperature was discussed with the aid of the Diffuse Double Layer (DDL) theory. It was found that the temperature may change the gradation of soil due to cementation of particles as a result of formation of some salts and oxides that help to paste the particles together and change the properties of the soil.

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“…For example, Hueckel et al (2011) summarized that experimental studies of the triaxial strength of clays show that remolded kaolin clay and natural Boom Clay exhibit temperature dependence of their internal friction, whereas this is not the case for largely smectitic or illitic clays based on works by Hueckel and Baldi (1990) Hueckel and Pellegrini (1992), and Cekerevac and Laloui (2004). Conversely, Houston et al (1985) reported increases in peak shear strength at elevated temperature under undrained conditions for an illitic and smectitic rich ocean sediment.…”

Section: Energy Geotechnicsmentioning

confidence: 99%

Transparent Soil to Model Thermal Processes: An Energy Pile Example

Black

Tatari

2015

Geotech. Test. J.

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Managing energy resources is fast becoming a crucial issue of the 21st century, with groundbased heat exchange energy structures targeted as a viable means of reducing carbon emissions associated with regulating building temperatures. Limited information exists about the thermo-dynamic interactions of geothermal structures and soil owing to the practical constraints of placing measurement sensors in proximity to foundations; hence, questions remain about their long-term performance and interaction mechanics. An alternative experimental method using transparent soil and digital image analysis was proposed to visualize heat flow in soil. Advocating the loss of optical clarity as a beneficial attribute of transparent soil, this paper explored the hypothesis that temperature change will alter its refractive index and therefore progressively reduce its transparency, becoming more opaque. The development of the experimental methodology was discussed and a relationship between pixel intensity and soil temperature was defined and verified. This relationship was applied to an energy pile example to demonstrate heat flow in soil. The heating zone of influence was observed to extend to a radial distance of 1.5 pile diameters and was differentiated by a visual thermal gradient propagating from the pile. The successful implementation of this technique provided a new paradigm for transparent soil to potentially contribute to the understanding of thermo-dynamic processes in soil.

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Thermoplasticity of Saturated Clays: Experimental Constitutive Study

Cited by 319 publications

References 18 publications

Effect of Temperature on Shear Strength and Yielding Behavior of Soft Bangkok Clay

Effect of Temperature on Shear Strength and Yielding Behavior of Soft Bangkok Clay

Effect of thermal history on the properties of bentonite

Transparent Soil to Model Thermal Processes: An Energy Pile Example

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