Yeliseyev V.I., Lutsenko V.I., Semenenko Ye.V. Empirical parameters of long-term impregnation of porous material samples

Details

Parent Category: Geo-Technical Mechanics, 2018

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 142

Geoteh. meh. 2018, 142, 25-32

https://doi.org/10.15407/geotm2018.142.025

EMPIRICAL PARAMETERS OF LONG-TERM IMPREGNATION OF POROUS MATERIALSAMPLES

Yeliseyev V.I., Lutsenko V.I., Semenenko Ye.V.

Authors:

Yeliseyev Vladimir Ivanovich, Candidate of Physics and Mathematics Sciences, Ph.D.(Phys.-Mat.), Senior Researcher (IGTM, NAS of Ukraine)

Lutsenko Vasily Ivanovich, Candidate of Technical Sciences Ph.D.(Tech.), Senior Researcher (IGTM, NAS of Ukraine)

Semenenko Yevgeny Vladimirovich, Doctor of Technical Sciences (D.Sc), Senior Researcher (IGTM, NAS of Ukraine)

UDC 532.685

Language: Russian

Annotation.

Capillary impregnation of permeable porous materials is used in many modern technologies and, despite the large experimental material, it is of certain scientific interest. Experimental results of long-term water impregnation of porous bodies of various structures are presented in the article. Studies were performed with 17 samples of different weights. Impregnation was carried out with distilled water at atmospheric pressure. The end time of the impregnation process for each sample was determined individually. The duration of the experiment ranged from 7 to 150 days.Experiments confirm characteristic feature of this process described in literary sources. Indeed, at time points of approximately 10² min, a significant slowdown in the rise of the saturation curve is observed, which can be taken as the end of the process. However, further observations showed that the impregnation does not end at this stage and, over time, it resumes. In this case, final rate of saturation can be much greater than the rate obtained at the first stage. A general analytical expression for describing the process of water saturation for any structures of the tested samples was obtained, whichindicates a similarity of fluid movement in the pore channel system. Approximation of the experimental data by logarithmic function gives a good result of analytical representation of the process. It is also shown that the theoretical approaches used make it possible to obtain water saturation curves for great periods of time with good accuracy.A general analytical expression was obtained to describe the process of water saturation independent of the structure of the porous space of the test samples, which indicates similarity in the movement of fluid in the system of pore channels.

Keywords:

porous structure, liquid, water absorption, capillary impregnation, experiment

References:

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https://doi.org/10.1134/S0040579509040058

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4. Barabanov, V.L. and Lyubushin, A.A. (2013), "Experience in the study of fractal properties of capillary impregnation of rocks", Inzhenerno-fizicheskiy zhurnal, vol. 86, no. 1, pp. 3-13.

https://doi.org/10.1007/s10891-013-0798-y

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About the authors:

Yeliseyev Vladimir Ivanovich, Candidate of Physics and Mathematics Sciences, Ph.D.(Phys.-Mat.), Senior Researcher, Senior Researcher in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics, of the National Academy of Science of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Lutsenko Vasily Ivanovich, Candidate of Technical Sciences Ph.D.(Tech.), Senior Researcher, Senior Researcher in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics of the National Academy of Science of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Semenenko Yevgeny Vladimirovich, Doctor of Technical Sciences (D.Sc), Senior Researcher, Head of Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics of the National Academy of Science of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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