Measuring dielectric properties of concrete over low RF

Rami H. Haddad, Imad L. Al-Qadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Parallel plate capacitor was designed and manufactured to measure the dielectric properties of portland cement concrete (PCC) at low radio frequency (RF), 0.1 MHz to 40.1 MHz. The setup consists of a parallel plate capacitor fixture, a network analyzer, and connecting cable and adapters. The impedance of the capacitor was measured using an HP-4195A network analyzer. Portland cement concrete specimens were prepared with two aggregate types, different levels of water to cement (w/c) ratios, and two levels of air entrainment. Testing results indicated the feasibility of using electromagnetic waves (EM) to detect changes in the basic properties of PCC over low RF. This included effects of curing time, w/c ratio, aggregate type, and air entrainment.

Original languageEnglish (US)
Title of host publicationMaterials for the New Millennium
EditorsKen P. Chong
PublisherASCE
Pages1139-1149
Number of pages11
Volume2
StatePublished - 1996
Externally publishedYes
EventProceedings of the 1996 4th Materials Engineering Conference. Part 2 (of 2) - Washington, DC, USA
Duration: Nov 10 1996Nov 14 1996

Other

OtherProceedings of the 1996 4th Materials Engineering Conference. Part 2 (of 2)
CityWashington, DC, USA
Period11/10/9611/14/96

ASJC Scopus subject areas

  • Building and Construction

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  • Cite this

    Haddad, R. H., & Al-Qadi, I. L. (1996). Measuring dielectric properties of concrete over low RF. In K. P. Chong (Ed.), Materials for the New Millennium (Vol. 2, pp. 1139-1149). ASCE.