PHYSICAL PROPERTIES OF EARTH MATERIALS

This report on the physical properties of earth materials is presented in two parts. Part one presents conclusions on the use of soil pressure cells for measurement of static soil pressure and changes in static pressures that may occur over relatively long periods of time under high embankments. Pressure readings were taken from the cells five times during construction and three times after completion. Seven of the eight cells functioned during construction. At the last reading five of the eight cells were inoperative. It was recommended that this investigation be discontinued because of lack of data. Part two deals with the use of nuclear-activated moisture and density probes for the rapid measurement of soil moisture content and density, both at and below the surface. The theory and a description of the equipment is presented. Calibration, operating procedures and the test program are discussed. It concludes that moisture contents and densities obtained with the nuclear probes agree with those obtained by conventional methods within reasonable enough limits to permit the use of this equipment for general engineering use and construction control.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Publication Date: 1960

Media Info

• Features: Photos;
• Pagination: p. 652-658
• Serial:
  • AREA BULLETIN
  • Volume: 61
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Earth pressure; Electromagnetic radiation; Load cells; Measurement; Pressure; Soils
• Old TRIS Terms: Pressure measurements; Soil pressure cells
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 00052348
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM