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Type of publication: 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;Kasperiūnaitė, Dalia;Mikuckis, Feliksas
Title: Thermo physical properties of samples made of unburnt clayey soil and sapropel mixture
Is part of: Engineering for rural development : 12th international scientific conference, May 23-24, 2013 : proceedings. Jelgava: Latvia University of Agriculture, 2013, Vol. 12
Extent: p. 259-263
Date: 2013
Keywords: Heat conductivity;Sapropel;Formation pressure
Abstract: The dependencies of heat conductivity of samples made of sapropel and clay on the amount of sapropel and absolute humidity have been investigated. Sapropel in unburnt clay samples from 1 % to 2 % of dry mass reduces the heat conductivity of the samples from 18 % to 30 % subject to absolute humidity. The heat conductivity of dried unburnt clay samples with 2 % to 4 % sapropel additives does not change. When absolute humidity of samples increases during the measurements of heat conductivity, it becomes obviously dependable on the amount of sapropel. The amount of sapropel is more significant to heat conductivity (Beta = -0.723) than absolute humidity (Beta = 0.672). The heat conductivity of the samples formed at 16 ÷35 MPa pressure increases enhancing formation pressure. The heat conductivity of the samples formed at pressure over 35 MPa reduces enhancing formation pressure. When absolute humidity of a sample increases, heat conductivity also increases and increases the most to the samples formed at 35 MPa pressure. Absolute humidity of the samples (Beta = 0.766) is more significant for the prognosis of heat conductivity than formation pressure (Beta = 0.326) of the samples
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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