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Type of publication: research article
Type of publication (PDB): Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Navickas, Juozas;Mikuckis, Feliksas;Kasperiūnaitė, Dalia
Title: Thermophysical properties of samples made of sapropel and clayey soil
Is part of: Rural development 2011 : 5th international scientific conference, 24-25 November, 2011, Akademija : proceedings. Akademija : Aleksandras Stulginskis University, Vol. 5, b. 1 (2011)
Extent: p. 394-398
Date: 2011
Keywords: Clay;Sapropel;Heat conductivity;Density;Absorption
Abstract: The article deals with the dependencies of density of samples made of pure clayey soil, sapropel and clayey soil mixture on formation pressure; it also deals with the dependency of heat conductivity and absorption capacity of samples made of clayey soil with 20% additives of sapropel on formation pressure and absolute humidity of samples. It has been established that density of dry samples increases when formation pressure is enhanced. Density of samples made of pure clayey soil increases more than of samples made of clayey soil and sapropel mixture. The dependence of heat conductivity in samples, formed at 26 – 40 MPa on absolute humidity, is linear, whereas, in samples, formed at less than 26 MPa, is nonlinear. The dependence of absorptive power on formation pressure belongs on the duration of samples keeping over water. Linear regressive analysis of investigation data has been fulfilled using a packet of statistical programmes SPSS-15. It is established that absolute humidity of samples and formation pressure are statistically significant (Sig.>0,001), and humidity of samples during measurements is more important to heat conductivity than formation pressure (Beta values are equal to 0,781 and -0,528 respectively)
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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