United States Department of Transportation
i
Field device to measure viscosity, density, and other slurry properties in drilled shafts [summary].
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2016-08-01
[PDF-110.52 KB]
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Abstract:Proper performance of the mineral slurries used to stabilize drilled shaft excavations is
maintained by assuring that the density, viscosity, pH, and sand content of the slurry stay
within limits set by the Florida Department of Transportation (FDOT), which are derived from
past experience, research findings and/or by manufacturer-recommended
values. However, the repetitive slurry testing
required in the field is a time-consuming, manual process.
Applying modern technology to this problem could offer
more rapid and reliable testing.
University of South Florida researchers developed and tested
a device that estimates slurry viscosity, density, and sand
content within a drilled shaft excavation. The test can be
performed at the surface; a slurry sample is not needed.
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