ANALYSIS TO DETERMINE SOIL COMPOSITION

ANALYS AV PROVER FOER ATT BESTAEMMA JORDS UPPBYGGNAD

In zonal soils such as those consisting of silt and sulphide soil in thin layers it can prove difficult to determine which soil type dominates from a geotechnical point of view. This article describes two methods for determining the structure of undisturbed samples. One method is to cut the sample with a thin thread and then study the layer sequence and layer thicknesses. In this way layers with a thickness of one-tenth of a millimetre could be identified. Layers of some hundredths of a millimetre were distinguishable by using a microscope. Infrared film proved to give more satisfactory pictures of the cut surface than ordinary colour films. The second method applied was to take an x-ray of the sample while it was still in its cylinder. In this test soil layers with a thickness of half a millimetre could be identified which is considered to be satisfactory. The x-ray method was preferred because it gave a better basis for further testing of the sample. For soil classification purposes a standardized picture table with a code system is presented. /TRRL/

• Corporate Authors:

  AB Buggmastarens Forlag

  Sveavagan 17
  5tr Stockholm,   Sweden 
• Authors:
  • Jacobsson, A
  • Pusch, R
• Publication Date: 1975

Language

• Swedish

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 10-12
• Serial:
  • Byggmastaren
  • Volume: 55
  • Issue Number: 8
  • Publisher: AM Myggmastarens

Subject/Index Terms

• TRT Terms: Chemical composition; Coding systems; Color film; Constants; Data tables; Geotechnical engineering; Infrared photography; Methodology; Pavement layers; Properties of materials; Sequencing; Silts; Soil types; Soils; Standardization; Testing; Thickness; Thin films; Undisturbed samples; X rays
• Uncontrolled Terms: Soil classification; Thin layers
• Old TRIS Terms: Sequences; Soil composition; Spring constants
• ITRD Terms: 2952: Layer; 9102: Method; 4149: Silt; 4156: Soil; 5937: Structure (physicochem); 6260: Undisturbed sample; 6728: X ray
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00137552
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, TRIS
• Created Date: Oct 26 1976 12:00AM