SLURRY PERFORMANCE IN DRILLED SHAFT CONSTRUCTION. FINAL REPORT

This research involved extensive and systematic laboratory studies on the Florigel H-Y clay slurry and the Super Mud polymer slurry to achieve the following objectives: 1) To determine the proper slurry preparation method to achieve the desired slurry density/viscosity; 2) To investigate the flow characteristics of the slurries; 3) To study the effect of pH on the rheological properties of the slurries; 4) To design a full scale settling column and use it to study the settling characteristics of cuttings in the slurries; 5) To examine the current available slurry specifications based on the results obtained from the above studies and to make any recommendations, if warranted; and 6) To attempt to use centrifuge modeling technique to study the integrity of a slurry-filled hole. The results of this research are presented in this report which contains the following: (a) a review of pertinent literature; (b) laboratory studies on the various factors that affect the rheological properties of both slurries; (c) the design of a unique, 20-ft (6.096 m) settling column; (d) settling tests of sands in slurries using both sedimentation cylinders and the settling column; (e) centrifuge modeling tests of slurry-filled holes; and (f) conclusions and recommendations made possible by this research.

• Corporate Authors:

  University of Florida, Gainesville

  Engineering and Industrial Experiment Station
  Gainesville, FL  United States  32611

  Florida Department of Transportation

  P.O. Box 1029
  Gainesville, FL  United States  32602
• Authors:
  • Kheng, H
  • Bloomquist, D
  • Townsend, F C
  • Thompson, P Y
  • Dobson, E
• Publication Date: 1991-3

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 252 p.

Subject/Index Terms

• TRT Terms: Centrifuges; Columns; Density; Dynamic models; Guides to the literature; Laboratory tests; Literature reviews; pH value; Recommendations; Rheological properties; Settlement (Structures); Slurry; Specifications; Viscosity
• Old TRIS Terms: Flow characteristics; Settling characteristics; Settling columns; Slurries
• Subject Areas: Construction; Geotechnology; Highways; Materials; Research; I35: Miscellaneous Materials; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 00618740
• Record Type: Publication
• Report/Paper Numbers: Proj 99700-7487-010, UFProj 4910450425812, WPI 0510489
• Contract Numbers: C-2962
• Files: TRIS, STATEDOT
• Created Date: Jan 31 1992 12:00AM