PHYSICAL PROPERTY RELATIONSHIPS OF IDAHO BATHOLITH SOILS

Relationships between engineering property data of compacted soils and more rapidly measured soil index property data can reduce the testing effort necessary in both design and construction quality control as well as increase the understanding of soil behavior. In this paper, relationships between standard Proctor (ASTM D-698) maximum dry unit weight, optimum water content, and California Bearing Ratio (ASTM D-1983) and the index property parameters of 24 sandy silt and silty sand Idaho Batholith soils are examined. The soils studied were taken from the subgrade of a National Forest road in central Idaho. Index properties measured for the non-plastic decomposed granite soils included grain size distribution parameters, organic content, and average specific gravity of soil solids. Relations between index parameters, compaction parameters, and California Bearing Ratio were obtained using linear regression analyses. The accuracy of the regression models for predicting compaction parameters developed in this study was compared to the accuracy of published relationships developed for a variety of soil types.

• Supplemental Notes:
  • This paper was presented at the Twentieth Annual Engineering Geology & Soils Engineering Symposium, Boise, Idaho April 7&8, 1983.
• Corporate Authors:

  Idaho Department of Highways

  P.O. Box 7129
  Boise, ID  United States  83707
• Authors:
  • Erickson, D E
  • Hardcastle, J
• Publication Date: 1983

Media Info

• Pagination: p. 175
• Serial:
  • Engineering Geology & Soils Engineering Symp Proc
  • Publisher: Idaho Department of Highways

Subject/Index Terms

• TRT Terms: California bearing ratio; Compacted soils; Granite; Index tests; Moisture content; Physical properties; Regression analysis; Sandy soils; Silts; Silty sands; Soil compaction; Soils; Weight
• Old TRIS Terms: Index properties
• Subject Areas: Data and Information Technology; Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00380616
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Mar 30 1984 12:00AM