The influence of wall slip on yield stress and viscoelastic measurements of cement paste

Aaron W. Saak; Hamlin M. Jennings; Surendra P. Shah

doi:10.1016/S0008-8846(00)00440-3

The influence of wall slip on yield stress and viscoelastic measurements of cement paste

Aaron W. Saak, Hamlin M. Jennings^*, Surendra P. Shah

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

198 Scopus citations

Abstract

The influence of wall slip on the shear yield stress and modulus of cement paste was investigated using a rotational rheometer with smooth-walled concentric cylinders and a vane. The results show that the concentric cylinders suffer from slip during yield stress measurements due to the formation of a water-rich layer at the walls of the cylinders. The use of a vane eliminates slip since shearing occurs within the material. Oscillatory tests were conducted to measure the viscoelastic properties of cement paste. The data for the vane and concentric cylinders are in excellent agreement at stresses below the yield point. It is difficult to determine the influence of slip for stress sweep measurements. Frequency sweep data for various materials show the general applicability of the vane method over several decades of modulus.

Original language	English (US)
Pages (from-to)	205-212
Number of pages	8
Journal	Cement and Concrete Research
Volume	31
Issue number	2
DOIs	https://doi.org/10.1016/S0008-8846(00)00440-3
State	Published - 2001

Keywords

Cement paste
Rheology
Slip

ASJC Scopus subject areas

Building and Construction
Materials Science(all)

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10.1016/S0008-8846(00)00440-3

Cite this

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title = "The influence of wall slip on yield stress and viscoelastic measurements of cement paste",

abstract = "The influence of wall slip on the shear yield stress and modulus of cement paste was investigated using a rotational rheometer with smooth-walled concentric cylinders and a vane. The results show that the concentric cylinders suffer from slip during yield stress measurements due to the formation of a water-rich layer at the walls of the cylinders. The use of a vane eliminates slip since shearing occurs within the material. Oscillatory tests were conducted to measure the viscoelastic properties of cement paste. The data for the vane and concentric cylinders are in excellent agreement at stresses below the yield point. It is difficult to determine the influence of slip for stress sweep measurements. Frequency sweep data for various materials show the general applicability of the vane method over several decades of modulus.",

keywords = "Cement paste, Rheology, Slip",

author = "Saak, {Aaron W.} and Jennings, {Hamlin M.} and Shah, {Surendra P.}",

note = "Funding Information: The authors would like to thank Prof. Wesley Burghardt and Dr. Sherry Morissette for their helpful discussions. This work was supported by the National Science Foundation Center for Advanced Cement-Based Materials under grant CHE-9120002.",

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AU - Saak, Aaron W.

AU - Jennings, Hamlin M.

AU - Shah, Surendra P.

N1 - Funding Information: The authors would like to thank Prof. Wesley Burghardt and Dr. Sherry Morissette for their helpful discussions. This work was supported by the National Science Foundation Center for Advanced Cement-Based Materials under grant CHE-9120002.

PY - 2001

Y1 - 2001

N2 - The influence of wall slip on the shear yield stress and modulus of cement paste was investigated using a rotational rheometer with smooth-walled concentric cylinders and a vane. The results show that the concentric cylinders suffer from slip during yield stress measurements due to the formation of a water-rich layer at the walls of the cylinders. The use of a vane eliminates slip since shearing occurs within the material. Oscillatory tests were conducted to measure the viscoelastic properties of cement paste. The data for the vane and concentric cylinders are in excellent agreement at stresses below the yield point. It is difficult to determine the influence of slip for stress sweep measurements. Frequency sweep data for various materials show the general applicability of the vane method over several decades of modulus.

AB - The influence of wall slip on the shear yield stress and modulus of cement paste was investigated using a rotational rheometer with smooth-walled concentric cylinders and a vane. The results show that the concentric cylinders suffer from slip during yield stress measurements due to the formation of a water-rich layer at the walls of the cylinders. The use of a vane eliminates slip since shearing occurs within the material. Oscillatory tests were conducted to measure the viscoelastic properties of cement paste. The data for the vane and concentric cylinders are in excellent agreement at stresses below the yield point. It is difficult to determine the influence of slip for stress sweep measurements. Frequency sweep data for various materials show the general applicability of the vane method over several decades of modulus.

KW - Cement paste

KW - Rheology

KW - Slip

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The influence of wall slip on yield stress and viscoelastic measurements of cement paste

Abstract

Keywords

ASJC Scopus subject areas

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