Defining the upper viscosity limit for mineral slurries used in drilled shaft construction : [summary].

Details

• Creators:
  Mullins, Gray
• Corporate Creators:
  University of South Florida
• Subject/TRT Terms:
  • Slurry
  • Bentonite slurry
  • Viscosity
  • Bentonite
  • Polymers
  • Reinforcing bars
  • Shafts (Machinery)
  • Shear strength
• Publication/ Report Number:
  BDK84-977-24
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida
• Corporate Publisher:
  Florida. Dept. of Transportation
• Abstract:
  Many structures built on Florida’s variable, sandy ; soils require deep foundations, such as pilings. ; Although pilings may be more familiar, drilled ; shafts are also often used. Drilled shafts require ; less expensive equipment and create less of the ; vibration that can disturb nearby structures and ; inhabitants. A drilled shaft foundation is created ; by drilling a hole of the correct diameter and ; depth. A steel reinforcing frame (cage) is placed ; in the hole, and concrete is ; added. The walls of the hole ; must remain intact during all ; phases of the installation. ; One means of doing this uses ; a clay-water mixture, called ; slurry, to fill the hole and ; stabilize the walls, especially ; where groundwater threatens ; wall integrity. After the cage ; is placed, concrete is pumped ; in, starting at the bottom; ; this displaces the slurry, ; which is captured for reuse.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20371/dot_20371_DS1.pdf
• File Type:
  [PDF - 741.49 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ef32a73ad0476f1b8c7c63eebfa8872e1265323c04bee18d6994790a84dcaf45338b8a3832c5c09a1fa6ef623da722f6ead3397470fd687e6a79dbf1ae9ba589