THE EFFECT OF THE SOIL GRANULOMETRIC COMPOSITION ON THE FID (FREE INDUCTION DECAY) SIGNAL INTENSITY IN NMR TESTS
Journal Title: Structure and Environment - Year 2016, Vol 0, Issue 2
Abstract
The influence of the soil granulation, grain diameter and the soil type on the FID signal intensity is presented. The FID signal intensity is used to determine the water content in soil sample by the use of the NMR spectrometry. Eighty five samples taken from four different soils (3 sand,1 sandy silt) were tested. The samples were characterized by different masses and water contents. The results of the FID signal intensity were compared to the mass of water in soils calculated by empirical formula obtained for clay soils and the mass of water obtained by the oven-drying method. The empirical formula using FID Signal Intensity can be used to calculate the mass of water in every soil regardless of its type. The type of soil, grain diameter and granulation do not appear to influence the FID Signal Intensity value. The factors that influence the FID Signal Intensity are the mass of water in soil, the water content in case of poorly sorted soils and the mass of soil sample in well sorted soils. The statistical analysis were conducted using Statistica 9.1 software
Authors and Affiliations
Edyta Nartowska, Tomasz Kozłowski, Marta Kolankowska
THERMAL INSULATION MATERIALS WITH POROUS STRUCTURE
The raw mix of silica-containing technogenic component – fly ash of thermal power plants – and the methods of preparing waterproof porous thermal insulating materials of extended application on its base according to the...
MODIFICATION OF AUTOCLAVED AERATED CONCRETE WITH RECYCLED MATERIALS
The paper compares the effect of additions such as plastic waste and natural process rejects on physical and mechanical properties and on phase composition of autoclaved aerated concrete (AAC) products. Two modifiers wer...
THE MAIN DIRECTIONS OF PREFABRICATED LARGE-PANEL SYSTEMS’ IMPROVING
The article discusses the features of the formation and development of prefabricated large-panel systems in civil engineering. Their advantages and disadvantages are given taking into account a variety of urban planning,...
DETERMINATION OF HEAT TRANSFER COEFFICIENT IN THE PHASE-CHANGE HEAT STORAGE DEVICE
This article describes information about the research of the heat transfer coefficient from air to water on the basis of comparison of theoretical calculations with the use of mathematical modeling and experimental studi...
PROCESSES MODELLING IN TWO-NAVE BUILDING WITH NATURAL AIR EXCHANGE
The paper explains ventilation air exchange driven by the gravitational force and wind, and the major factors affecting the phenomenon. A mathematical model, namely a system of equations, for computations of natural vent...