Cement-based materials for stress sensing by dielectric measurement

Sihai Wen; D. D.L. Chung

doi:10.1016/S0008-8846(02)00789-5

Cement-based materials for stress sensing by dielectric measurement

Sihai Wen
, D. D.L. Chung

Department of Mechanical and Aerospace Engineering

SUNY Buffalo

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

88 Scopus citations

Abstract

The self-sensing of stress by measurement of the relative dielectric constant (κ) has been shown in cement pastes containing steel fibers of 8 μm diameter and carbon filaments of 0.1 μm diameter. The κ value increases nonlinearly and quite reversibly with compressive stress up to 6.4 MPa, although the reversibility is not complete. Inferior sensing performance was observed in cement paste with carbon fibers of 15 μm diameter, although the performance was still better than cement paste without admixture.

Original language	English
Pages (from-to)	1429-1433
Number of pages	5
Journal	Cement and Concrete Research
Volume	32
Issue number	9
DOIs	https://doi.org/10.1016/S0008-8846(02)00789-5
State	Published - Sep 2002

Keywords

Cement paste
Dielectric constant
Electrical properties
Fiber reinforcement
Mechanical properties
Strain effect

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10.1016/S0008-8846(02)00789-5

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abstract = "The self-sensing of stress by measurement of the relative dielectric constant (κ) has been shown in cement pastes containing steel fibers of 8 μm diameter and carbon filaments of 0.1 μm diameter. The κ value increases nonlinearly and quite reversibly with compressive stress up to 6.4 MPa, although the reversibility is not complete. Inferior sensing performance was observed in cement paste with carbon fibers of 15 μm diameter, although the performance was still better than cement paste without admixture.",

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AB - The self-sensing of stress by measurement of the relative dielectric constant (κ) has been shown in cement pastes containing steel fibers of 8 μm diameter and carbon filaments of 0.1 μm diameter. The κ value increases nonlinearly and quite reversibly with compressive stress up to 6.4 MPa, although the reversibility is not complete. Inferior sensing performance was observed in cement paste with carbon fibers of 15 μm diameter, although the performance was still better than cement paste without admixture.

KW - Cement paste

KW - Dielectric constant

KW - Electrical properties

KW - Fiber reinforcement

KW - Mechanical properties

KW - Strain effect

UR - https://www.scopus.com/pages/publications/0036721890

U2 - 10.1016/S0008-8846(02)00789-5

DO - 10.1016/S0008-8846(02)00789-5

M3 - Article

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JO - Cement and Concrete Research

JF - Cement and Concrete Research

IS - 9

ER -

Cement-based materials for stress sensing by dielectric measurement

Abstract

Keywords

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