publication . Article . 2015

Rheological properties of PHPA polymer support fluids

Carlos Lam; Peter J. Martin; Stephan A. Jefferis;
Open Access English
  • Published: 01 Jan 2015
  • Country: New Zealand
Abstract
Synthetic polymer fluids are becoming a popular replacement for bentonite slurries to support excavations for deep foundation elements. However, the rheological properties of the polymer fluids used in excavation support have not been studied in detail, and there is currently confusion about the choice of mathematical models for this type of fluid. To advance the current state of knowledge, a laboratory study has been performed to investigate the steady-shear viscosity and transient viscoelasticity of a polymer support fluid. It is found that over the shear-rate range measurable with the Fann viscometer, an industry standard instrument, the power-law model can b...
Subjects
arXiv: Physics::Fluid DynamicsCondensed Matter::Soft Condensed Matter
free text keywords: Bored piles, Excavation, Polymer, Rheology, Viscoelasticity, Viscosity, Bentonite, Shear deformation, Shear flow, Slurries, Bingham-plastic models, Engineering implications, Laboratory studies, Rheological property, Steady shear viscosity, Support excavations, Viscoelastic properties, Polymers, General Materials Science, Mechanics of Materials, Civil and Structural Engineering, Building and Construction, Geotechnical engineering, Viscometer, Composite material, Rheometer, Apparent viscosity, Bingham plastic, Materials science
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publication . Article . 2015

Rheological properties of PHPA polymer support fluids

Carlos Lam; Peter J. Martin; Stephan A. Jefferis;