PHYSICAL AND CHEMICAL STABILITY OF ADMIXTURES IN UNPAVED ROAD SOILS

Admixtures are placed to control dust and increase strength on unpaved roads. This project investigated the performance of the admixtures during and after leaching had occurred. This report presents information in two main areas of investigation. The first is a soil column study to determine downward, one dimensional solute transport properties and trends of the admixtures lignin sulfonate, magnesium chloride and calcium chloride. The second area is a rain simulation study to evaluate various physical properties of the road surface related to the addition of the admixtures and/or Kaolinite. These properties include infiltration rates, runoff rates, erosion, and upward leaching of the admixtures into the surface runoff water. Additional information studied and researched included: strength increase of the road soil, environmental effects of the leaching admixtures, and a simulation of the solute movement using a computer program.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=441
• Supplemental Notes:
  • This cooperative study was funded and supported by the U.S. DOT's University Transportation Centers Program through the Mountain Plains Consortium, the University of Wyoming and the USDA Forest Service, Medicine Bow District Office.
• Corporate Authors:

  University of Wyoming, Laramie

  Wyoming Survey and Analysis Center, 710 Garfield
  Laramie, WY  United States  82070
• Authors:
  • Boresi, A P
  • DeCastro, A
  • Edgar, T V
  • Foster, D H
• Publication Date: 1996-3

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 163 p.

Subject/Index Terms

• TRT Terms: Admixtures; Calcium chloride; Computer programs; Environmental impacts; Kaolinite; Leaching; Lignosulfonate; Magnesium chloride; Moisture content; Motion; Physical properties; Rain; Simulation; Soils; Stability (Mechanics); Surface course (Pavements); Unpaved roads
• Uncontrolled Terms: Moisture movement
• Subject Areas: Environment; Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00722159
• Record Type: Publication
• Report/Paper Numbers: MPC Rept. No. 96-52
• Files: TRIS, ATRI
• Created Date: Jun 20 1996 12:00AM