Application of 1H-NMR relaxometry to the determination of the water content in clay soils

• Autorzy: Nartowska E. , Kozłowski T. , Kolankowska M.

Warianty tytułu

PL

Zastosowanie metody NMR do określenia wilgotności w gruntach spoistych

• Języki publikacji: EN PL

Abstrakty

EN

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 to determine the water content in clay soil samples. The widely used oven-drying method is time-consuming and precludes using the same sample to another test, because drying process damages the internal structure of soil. Three clay soils, characterized by high surface area, were used in the research and six to eight samples for each soil were tested. The obtained dependence curve between FID Signal Intensities and mass of water was characterized by a high correlation coefficient (R² = 0.97). The curve can be used to determine the mass of water present in clay soil sample on the basis of FID Signal Intensity. Such approach allows ¹H-NMR relaxometry to be applied for the determination of water content in soil samples in a fast and non-destructive way.

Słowa kluczowe

EN

water content; clay soils; NMR methods; FID Signal

PL

wilgotność; grunty spoiste; metody NMR; sygnał FID

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Structure and Environment
• Rocznik: 2015
• Tom: Vol. 7, no. 4
• Strony: 189--193
• Opis fizyczny: Bibliogr. 10 poz., tab., wykr.

Twórcy

autor

Nartowska E.

• Kielce University of Technology

autor

Kozłowski T.

• Kielce University of Technology

autor

Kolankowska M.

• Kielce University of Technology

Bibliografia

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• [3] Tian H., Wei C., Wei H., Yan R., Chen P.: An NMR-Based Analysis of soil-Water Characteristics. Applied Magnetic Resonance, 45 (2014), pp. 49-61.
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• [5] Kozlowski T.: A comprehensive method of determining the soil unfrozen water curves: 2. Stages of the phase change process in frozen soil-water system. Cold Reg. Sci. Technol, 36 (2003b), pp. 81-92.
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• [7] Bayer J.V., Jaeger F., Schaumann G.E.: Proton Nuclear Magnetic Resonance (NMR) Relaxometry In Soil Science Applications, The Open Magnetic Resonance Journal 3 (2010), pp. 15-27.
• [8] Jaeger F., Bowe S., Van As H., Schaumann G.E.:Evaluation of 1H NMR relaxometry for the assessment of pore-size distribution in soil samples, European Journal of Soil Science, 6 (2009), pp. 1052-1064.
• [9] Turov V.V, Leboda R.: Application of 1H NMR spectroscopy method for determination of characteristics of thin layers of water adsorbed on the surface of dispersed and porous adsorbents. Advances in Colloid and Interface Science, 79 (1999), pp. 173-211.
• [10] Stępkowska E.T.: Water sorption test and possibility of its application in different research., Arch. Hydrotech. 24 (1977), pp. 411-421.