Determination of soil grain size composition by measuring apparent weight of float submerged in suspension

• Autorzy: Kaszubkiewicz J. , Wilczewski W. , Novak T.J. , Wozniczka P. , Falinski K. , Belowski J. , Kawalko D.
• Języki publikacji: EN

Abstrakty

EN

Texture is one of the most significant physical properties of soils. Over the years, several methods of its measuring were developed. The paper presents a method for determining the particle size composition of soils, based on the separation of particles in the sedimentation process. Density of suspension is determined on the basis of apparent weight changes of a float submerged in it. The weight of the float suspended ona thin line, at a given depth in the suspension, is measured with a sensitive piezoelectric dynamometer. The Stokes equation is used to calculate the content of soil fractions with equivalent diameters in the range of 0.001 to 0.1 mm. Digital transmission of results from the dynamometer, the temperature sensor and measurements of the distance defining the depth of immersion of the float to the computer enable calculations of particle size composition to be performed automatically. This paper presents the results of measurements of the particle size composition of artificially generated mixtures of ‘silt’ and ‘clay’. The results are compared with results obtained with other methods (including the laser method). A high level of repeatability of the results and satisfactory compatibility in relation to the reference pipette method are noted.

• Wydawca: -
• Czasopismo: International Agrophysics
• Rocznik: 2017
• Tom: 31
• Numer: 1
• Opis fizyczny: p.61-72,fig.,ref.

Twórcy

autor

Kaszubkiewicz J.

• Institute of Soil Science and Environment Protection, Wroclaw University of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wroclaw, Poland

autor

Wilczewski W.

• Arcanum Sp. z o.o., Parkowa 6/1, 51-616 Wroclaw, Poland

autor

Novak T.J.

• Department of Landscape Protection and Environmental Geography, University of Debrecen, Boszormenyi ut 138,4032, Debrecen, Hungary

autor

Wozniczka P.

• Institute of Soil Science and Environment Protection, Wroclaw University of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wroclaw, Poland

autor

Falinski K.

• Arcanum Sp. z o.o., Parkowa 6/1, 51-616 Wroclaw, Poland

autor

Belowski J.

• Arcanum Sp. z o.o., Parkowa 6/1, 51-616 Wroclaw, Poland

autor

Kawalko D.

• Institute of Soil Science and Environment Protection, Wroclaw University of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wroclaw, Poland

Identyfikatory

DOI

10.1515/intag-2016-0027