FID SIGNAL INTENSITY IN THE NMR STUDIES OF COHESIVE SOILS AT THE POSITIVE TEMPERATURE RANGE
Journal Title: Structure and Environment - Year 2016, Vol 0, Issue 3
Abstract
The purpose of this study was to explain the reason of the FID signal intensity change for soil samples in the positive temperature range (0-40°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.
Authors and Affiliations
Edyta Nartowska, Tomasz Kozłowski, Marta Kolankowska
APPLICATION OF 1H-NMR RELAXOMETRY TO THE DETERMINATION OF THE WATER CONTENT IN CLAY SOILS
The NMR technique is widely used in polymer, chemical, and agrifood industries, as well as in many other fields of science and technology. This work presents results from the use of FID (Free Induction Decay) application...
THE TRANSFER COEFFICIENT OF HEAVY METALS FROM THE INPUT SEWAGE SLUDGE TO THE ASH
Sewage sludge incineration may have adverse impact on the environment due to heavy metals toxicity. Heavy metals concentrations in sewage sludge ash increased in comparison to concentrations in sewage sludge. The aim of...
PECULIARITIES OF PHASE PROCESSES IN THE VOLUME OF LIQUID
The work is devoted to the study of the transient processes of heat and mass transfer in the volume of a liquid. The method of calculating the temperature field in a liquid takes into account phase transitions, motion of...
EFFECTS OF NATURAL ZEOLITE PARTICLE SIZE ON THE CEMENT
This paper reports the test results of the Transcarpathian zeolite grain size on the cement-zeolite pastes properties. Materials used in this study included CEM I 42.5R and the zeolite chiefly composed of clinoptilolite...
SELECTED ASPECTS OF APPLICATION OF ALUMINIUM ALLOYS IN BUILDING STRUCTURES
The article describes the basic issues related to the use of aluminium alloys in civil engineering. The classification of aluminium alloys according to PN-EN standards is presented. The advantages and disadvantages of al...