A model for the freezing of water in a dispersed medium

Vignes, M; Dijkema, K. M.

doi:10.1016/0021-9797(74)90348-8

Cited by 70 publications

(18 citation statements)

References 12 publications

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“…The authors observed that the growth rate of ice increases proportionally with the depression T f = T 0 − T f of the temperature T f at the freezing front, where T 0 = 0 • C, is the melting temperature of bulk ice ( T f values ranging from 0.0 to 0.3 • C). The observations are in agreement with an experiment by Vignes and Dijkema (1974), who grew ice at the mouth of a capillary channel that was in contact with a reservoir of supercooled water ( T f values ranging from 0.3 to 0.77 • C). With respect to growth rate and temperature range, these experiments agree with our observations of hairice growth as will be shown.…”

Section: Hair Ice and Ice Segregationsupporting

confidence: 91%

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Evidence for biological shaping of hair ice

Hofmann¹,

Preuss²,

Mätzler

2015

Biogeosciences

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Abstract. An unusual ice type, called hair ice, grows on the surface of dead wood of broad-leaf trees at temperatures slightly below 0 • C. We describe this phenomenon and present physical, chemical, and biological investigations to gain insight in the properties and processes related to hair ice. Tests revealed that the biological activity of a winter-active fungus is required in the wood for enabling the growth of hair ice. We confirmed the fungus hypothesis originally suggested by Wegener (1918) by reproducing hair ice on wood samples. Treatment by heat and fungicide suppresses the formation of hair ice. Fruiting bodies of Asco-and Basidiomycota are identified on hair-ice-carrying wood. One species, Exidiopsis effusa (Ee), was present on all investigated samples.Both hair-ice-producing wood samples and those with killed fungus show essentially the same temperature variation, indicating that the heat produced by fungal metabolism is very small, that the freezing rate is not influenced by the fungus activity, and that ice segregation is the common mechanism of ice growth on the wood surface. The fungus plays the role of shaping the ice hairs and preventing them from recrystallisation. Melted hair ice indicates the presence of organic matter. Chemical analyses show a complex mixture of several thousand CHO(N,S) compounds similar to fulvic acids in dissolved organic matter (DOM). The evaluation reveals decomposed lignin as being the main constituent. Further work is needed to clarify its role in hair-ice growth and to identify the recrystallisation inhibitor.

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Section: Hair Ice and Ice Segregationsupporting

confidence: 91%

“…This general phenomenon is called ice segregation. The thermodynamic phenomenon of frost heave (Vignes and Dijkema, 1974;Dash, 1989;Ozawa, 1997;Dash et al, 2006) is a common driver for these ice types.…”

Section: Hair Ice and Ice Segregationmentioning

confidence: 99%

Evidence for biological shaping of hair ice

Hofmann¹,

Preuss²,

Mätzler

2015

Biogeosciences

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“…And finally,ṙ pcap accounts for the pressure in the liquid caused by flows at the microscopic scale. The physical understanding of the driving force of these flows, which drives liquid water to the already frozen sites in order to meet the liquid-crystal equilibrium condition (6), was previously discussed in (Vignes and Dijkema 1974;Vignes-Adler 1976).…”

Section: Poromechanics Of a Partially Frozen Continuum Under A Thermamentioning

confidence: 99%

“…Nowadays, it has been recognized that the mechanical response of a saturated or partially saturated porous material at freezing temperatures is the result of the volumetric increase of water during its solidification, the transport of unfrozen liquid water through the porous network and the thermo-mechanical properties of all the phases of the composite material. Physico-mechanics based models have been developed to capture and quantify all these phenomena both at the pore scale (Vignes and Dijkema 1974;Coussy and Fen-Chong 2005) and at the material scale (Coussy 2005;Zuber and Marchand 2004;Bazant et al 1988). …”

Section: Introductionmentioning

confidence: 99%

Are Deicing Salts Necessary to Promote Scaling in Concrete?

et al. 2008

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The main purpose of the present study is to investigate the role of the material parameters such as permeability, thermal diffusivity, and pore size distribution on the mechanical behavior of cementitious structures submitted to frost action, such as surface scaling. An experimental device, in which a cement paste specimen is exposed to freezing-thawing cycles under a thermal gradient, has been developed. The experimental results show that under high thermal gradient (up to 1.5 o C/mm), skin damage can occur without a saline layer in contact with the frozen surface. This can be explained and quantified in the framework of poromechanics. The model is based on the coupling between liquid -ice crystal thermodynamic equilibrium, liquid water transport, thermal conduction and elastic properties of the different phases that form the porous material. It eventually predicts that a less permeable sample is more susceptible to be damaged by surface defacement, which explains the observed experimental result.

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“…Its considerable intensity is due to the ice melting heat, The developed theory underwent quantitative verification in two ways. Firstly, the results of Vignes and Dijkema [56] were used. They had measured the ice growth rate, owing to the supply of water flowing from the region, where T= 0, through slit communications.…”

mentioning

confidence: 99%

Some results from 50 years' research on surface forces

Derjaguin¹

Surface Forces and Surfactant Systems

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A model for the freezing of water in a dispersed medium

Cited by 70 publications

References 12 publications

Evidence for biological shaping of hair ice

Evidence for biological shaping of hair ice

Are Deicing Salts Necessary to Promote Scaling in Concrete?

Some results from 50 years' research on surface forces

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