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[53480] Artykuł: FID Signal Intensity in the NMR studies of cohesive soils at the positive temperature range(Intensywność sygnału (FID) w badaniach NMR gruntów spoistych w zakresie temperatur dodatnich)Czasopismo: Structure and Environment Tom: 9, Zeszyt: 3/2016 ISSN: 2081-1500 Opublikowano: 2016 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w recenzowanym czasopiśmie wymienionym w wykazie ministra MNiSzW (część B) Punkty MNiSW: 9 Keywords: cohesive soils  FID signal intensity  nuclear magnetic resonance  |
The purpose of this study was to explain the reason of the FID signal intensity change for soil samples in the positive temperature range (0°C-40°C). According to the reference data the main cause is the presence of the paramagnetic ions in soil. The experiment conducted on 4 cohesive soils showed that the main reason of FID changing could be the change of the water’s heat of the vaporization, decreasing as the temperature increases.NMR Spectrometry method was used in the research and Statistica 9.1 software was used for statistical analysis.