Comparison of Proctor and Uniaxial Compression Tests for Selected Soils

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The objective of this paper was to compare the results of soil material compaction carried out with the use of the Proctor and uniaxial compression tests in order to find relations between these methods. Soil material in the form of loose mass was collected from the layer deposited at the depth from 35 to 60 cm in order to determine its typical properties (textural group, density of solid particles, humus content, reaction, plastic and liquid limits) and in order to compact it in the Proctor apparatus and in the uniaxial compression test. Results of both tests were used for construction of regression models reflecting the course of the unit stress (Pρdp), necessary to generate compaction equal to the dry density of solid particles obtained in the Proctor apparatus (ρdp) in relation to the sample moisture (ws). It was stated that the stress value Pρdp on the soil sample in the uniaxial compression test depends significantly on ws. It was proved that for the purpose of comparing the results of both tests, the uniaxial stress of samples must be performed in conditions of their lateral expansion. It was also proved that the use of the uniaxial test with possible lateral expansion of soil with a model sample, a diameter of which is 100 and the height is 30 mm, one may determine the obtained compaction with the use of the plate movement value.

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  • Aragón A. García M.G. Filgueira R.R. Pachepsky Ya.A. (2000). Maximum compactibility of Argentine soils from the Proctor test The relationship with organic carbon and water content. Soil& Tillage Research 56 197-204.

  • Błażejczak D. (2010). Prognozowanie naprężenia granicznego w warstwie podornej gleb ugniatanych kołami pojazdów rolniczych. Wyd. ZUT w Szczecinie. ISBN 978-83-7663-050-2.

  • Błażejczak D. Dawidowski J.B. (2013). Problem wykorzystania gęstości objętościowej gleby w ocenie jej zagęszczenia. Journal of Research and Applications in Agricultural Engineering58(1) 17-20.

  • Błażejczak D. Dawidowski J.B. (2016). The impact of the plate diameter on the determined value of pre-compaction stress of samples made of silt soil. Agricultural Engineering Vol. 20 No 2 5-14.

  • Błażejczak D. Nowowiejski R. Dawidowski J.B. (2017). Impact of friction on the uniaxial soil sample copression proces. Agricultural EngineeringVol. 21 No 2 101-112.

  • Hakansson I. Lipiec J. (2000). A revive of the usefulness of relative bulk density values in studies of soil structure and compaction. Soil & Tillage Research 53 71-85.

  • Jurga J. (2009). The verification of mathematical model designed to determining the area of the contact surface as well as unit pressure exerted onto soil by wheels of the agricultural vehicles. Journal of Research and Applications in Agricultural Engineering54(1) 83-88.

  • Krasowicz S. Oleszek W. Horabik J. Dębicki R. Jankowiak J. Stuczyński T. Jadczyszyn J. (2011). Racjonalne gospodarowanie środowiskiem glebowym Polski. Polish Journal of Agronomy7 43-58.

  • Kumar D. Bansal M. L. Phogat V. K. (2009). Compactability in relation to texture and organic matter content of alluvial soils. Indian Journal of Agricultural Research43(3) 180-186.

  • Nhantumbo A. B. J. C. Cambule A. H. (2006). Bulk density by Proctor test as a function of texture for agricultural soils in Maputo province of Mozambique. Soil&Tillage Res. 87 231-239.

  • Polskie Towarzystwo Gleboznawcze (2009). Klasyfikacja uziarnienia gleb i utworów mineralnych – PTG 2008. Roczniki Gleboznawcze60(2) 5-16.

  • PN-88/B-04481 (1988). Grunty budowlane. Badania próbek gruntu.

  • Szeptycki A. (2003). Wpływ ciężkich maszyn rolniczych na fizykomechaniczne właściwości gleby. Journal of Research and Application in Agricultural Engineering48(3) 5-9.

  • Śnieg K. Błażejczak D. (2017). Evaluation of subsoil compaction of plastic soils. Agricultural EngineeringVol 21 No 1 pp. 85-94.

  • Tarkiewicz S. Nosalewicz A. (2005). Effect of organic carbon content on the compactibility and penetration resistance of two soils formed from loess. International Agrophysics19 345-350.

  • Van den Akker J. J. H. Arvidsson J. Horn R. (2003). Introduction to the special issue on experiences with the impact and prevention of subsoil compaction in the European Union. Soil&Tillage Research73 1-8.

  • Wagner L. E. Ambe N. M. Ding D. (1994). Estimating a Proctor Density Curve from Intrinsic Soil Properties. Transactions of the ASAEVol. 37(4) 1121-1125.

  • Walczyk M. (1995). Wybrane techniczne i technologiczne aspekty ugniatania gleb rolniczych agregatami ciągnikowymi. Zeszyty Naukowe Akademii Rolniczej w Krakowie Rozpr. 202 ISSN 1233-4189.

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