Journal of Materials Science

, Volume 29, Issue 5, pp 1374–1381 | Cite as

Rheological behaviour of fresh cement paste as measured by squeeze flow

  • B. H. Min
  • L. Erwin
  • H. M. Jennings


A method is proposed for measuring the rheology of cement paste under conditions that suppress shear flow, i.e. squeezing. This method is based on squeezing samples in a servohydraulic compression-tension testing machine, and is different from the commonly used shear flow experiments. Possible artefacts such as the buoyancy of the piston that penetrates the paste, sedimentation of cement paste, geometry of the container, and friction at the interface between the top plate (or piston) and sample are investigated. Plots of stress versus apparent strain were obtained and compared with results from standard shear flow experiments. Because cement paste has both viscoelastic and viscoplastic characteristics, results are analysed in terms of both solid-like deformation and liquid-like flow behaviour. A first-approximation theoretical analysis is developed, based on the assumption that cement paste behaves as a non-Newtonian liquid, and results are compared with the experimental results.


Polymer Sedimentation Theoretical Analysis Testing Machine Shear Flow 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


\(\dot \gamma\)

Shear strain rate in power law fluid model


Shear strain converted from ε zr

\(\dot \gamma _{zr}\)

Shear strain rate


Normal strain rate


Component of shear strain


Component of shear strain rate


Component of normal strain




Density of cement paste (3.2 g cm−3)


Calculated average normal stress of cement paste


Calculated average normal stress of power law fluid


Measured normal stress of cement paste


Normal stress in z direction


Equivalent shear stress converted from normal stress


Shear stress in momentum equation


Coefficients in polynomial function of geometric factor for cement paste


Buoyancy force


Geometric factor for cement paste


Amplitude of squeeze motion


Load in normal direction


Gravitational constant


Sample height


Initial sample height

\(\dot h\)

Velocity of platen


Order of polynomial function of geometric factor for cement paste


Consistency in power-law fluid model


Power index in power-law fluid model




Atmospheric pressure


Geometric factor for power-law fluid model


Radial direction in cylindrical coordinates


Radius of sample




Volume of the top platen submerged into cement paste


Velocity inr direction


Velocity in z direction


Vertical direction in cylindrical coordinates


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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • B. H. Min
    • 1
  • L. Erwin
    • 2
  • H. M. Jennings
    • 3
  1. 1.Departments of Mechanical EngineeringRobert R. McCormick School of Engineering and Applied Science, Northwestern UniversityEvanstonUSA
  2. 2.Departments of Material Science and EngineeringRobert R. McCormick School of Engineering and Applied Science, Northwestern UniversityEvanstonUSA
  3. 3.Civil EngineeringRobert R. McCormick School of Engineering and Applied Science, Northwestern UniversityEvanstonUSA

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