POLYMER IMPREGNATION TO ASSIST UNDISTURBED SAMPLING OF COHESIONLESS SOILS

The authors propose the use of agarose, a derivative of the natural polymer, agar, as an impregnate to stabilize the in-situ structure of cohesionsless soils before sampling. After a soil is heated, a gel solution is injected into the in-situ voids. Sampling is conducted using conventional methods and gel removal is accomplished via a laboratory test device that reheats the specimen and flushes out the agarose with warm water. The cyclic mobility of two contractive Ottawa sands was unaffected by the process of heating, impregnation with agarose, cooling, reheating, and agarose removal. This impregnation technology has the potential for accurate estimation of the in-situ void ratio and for an economic undisturbed sampling of cohesionless soils.

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 209-215
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00719334
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 24 1996 12:00AM