Viscoelastic Properties of Soil with Different Ammonium Nitrate Addition

Four different soils samples were taken from not cultivated recreational places. Particle-size distribution and pH (in water and in 1 M KCl) of the soil samples were measured. Soil samples were saturated with deionized water and solution of ammonium nitrate with the concentration of 5, 50 or 500 mM...

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Bibliographic Details
Published in:Eurasian soil science 2017-12, Vol.50 (12), p.1450-1454
Main Authors: Kawecka-Radomska, M., Tomczyńska-Mleko, M., Muszyński, S., Wesołowska-Trojanowska, M., Mleko, S.
Format: Article
Language:English
Subjects:
Aluminosilicates
Aluminum silicates
Ammonium
Ammonium compounds
Ammonium nitrate
Analysis
Biopolymers
Chlorides
Clay
Deionization
Earth and Environmental Science
Earth Sciences
Elasticity
Fertilizers
Gels
Geotechnical Engineering & Applied Earth Sciences
Nitrates
Particle size distribution
Potassium chloride
Properties
Rheological properties
Rheology
Size distribution
Soil
Soil dynamics
Soil Physics
Soil properties
Soil structure
Viscoelasticity
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Summary:Four different soils samples were taken from not cultivated recreational places. Particle-size distribution and pH (in water and in 1 M KCl) of the soil samples were measured. Soil samples were saturated with deionized water and solution of ammonium nitrate with the concentration of 5, 50 or 500 mM for 3 days. The samples were analyzed using dynamic oscillatory rheometer by frequency and strain sweeps. Soil samples were similar to physical gels, as they presented rheological properties between those of a concentrated biopolymer and a true gel. 50 mM concentration of the salt was enough to make changes in the elasticity of the soils. Small concentration of the fertilizer caused weakening of the soil samples structure. Higher concentration of ammonium nitrate caused the increase in the moduli crossover strain value. For the loam sample taken from a playground, with the highest content of the particles
ISSN:1064-2293
1556-195X
DOI:10.1134/S1064229317130026