<abstract xmlns="http://www.w3.org/1999/xhtml">The objective of the research was to construct an empirical model for prediction of a unit pressure indispensable for generation of a specific compaction of soil samples. Soil material in the form of loose mass was collected from the soil layer deposited in the depth from 35 to 40 cm and then its typical properties were determined (textural group, density of solid particles, humus content, reaction, plastic and liquid limits) and in order to compact it in 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 strength (<italic>Pρd)</italic> necessary to generate compaction (ρdj) equal to the dry bulk density obtained in Proctor apparatus (ρdp), in relation to the sample moisture (ρdm). Searching for relations was restricted to the scope of moisure between an optimal one acc. to Proctor and the soil plastic limit. It was stated that the pressure value <italic>Pρdp</italic> made on the soil sample in the uniaxial compression test depends significantly on <italic>w</italic>s and ρdm, and for description of this relation the use of multiple regression is sufficient. It was found out that for model samples with a textural group of silt loam and loam, differences in dry bulk density obtained in Proctor apparatus are approximately up to 0.15 g⋅cm−3.</abstract>

The objective of the research was to construct an empirical model for prediction of a unit pressure indispensable for generation of a specific compaction of soil samples. Soil material in the form of loose mass was collected from the soil layer deposited in the depth from 35 to 40 cm and then its typical properties were determined (textural group, density of solid particles, humus content, reaction, plastic and liquid limits) and in order to compact it in 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 strength (Pρd) necessary to generate compaction (ρdj) equal to the dry bulk density obtained in Proctor apparatus (ρdp), in relation to the sample moisture (ρdm). Searching for relations was restricted to the scope of moisure between an optimal one acc. to Proctor and the soil plastic limit. It was stated that the pressure value Pρdp made on the soil sample in the uniaxial compression test depends significantly on ws and ρdm, and for description of this relation the use of multiple regression is sufficient. It was found out that for model samples with a textural group of silt loam and loam, differences in dry bulk density obtained in Proctor apparatus are approximately up to 0.15 g⋅cm−3.

Predicting Unit Pressure Indispendable for Generation of Specific Compaction of a Soil Sample

Department of Construction and Usage of Technical Devices

West Pomeranian University of Technology in Szczecin

Agricultural Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The objective of the research was to construct an empirical model for prediction of a unit pressure indispensable for generation of a specific compaction of...

Predicting Unit Pressure Indispendable for Generation of Specific Compaction of a Soil Sample

Published Online: Oct 16, 2018

Page range: 85 - 92

Received: Jul 01, 2018

Accepted: Sep 01, 2018

DOI: https://doi.org/10.1515/agriceng-2018-0030

Keywords
soil, compaction, Proctor test, uniaxial test

© 2018 Kinga Śnieg et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Predicting Unit Pressure Indispendable for Generation of Specific Compaction of a Soil Sample

Published Online: Oct 16, 2018

Page range: 85 - 92

Received: Jul 01, 2018

Accepted: Sep 01, 2018

DOI: https://doi.org/10.1515/agriceng-2018-0030

Keywordssoil, compaction, Proctor test, uniaxial test

© 2018 Kinga Śnieg et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
soil, compaction, Proctor test, uniaxial test