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Proceedings Paper

Effect of volcanic-ash on the pyroelectric and dielectric properties of Portland cement
Author(s): Kamala N. Bhat; A. K. Batra; Sudip Bhattacharjee; Robert W. Taylor
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Paper Abstract

The property of pyroelectric material finds application in infrared detection. A study was conducted to investigate the effect of inclusion of volcanic ash into cement and bonded with polyvinyl alcohol (PVA) giving cement:volcanic-ash systems. The ash used in this experiment is from the eruption of the Soufrière Hill volcano in the island of Montserrat, West Indies. Preliminary results indicate that cement: volcanic ash systems shows pyroelectric effect. Further investigations were carried to determine the effect of temperature and frequency on the variation of dielectric properties. The results show that both dielectric constant and ac conductivity of cement decrease with inclusion of volcanic-ash.

Paper Details

Date Published: 26 August 2010
PDF: 7 pages
Proc. SPIE 7780, Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon, 77800L (26 August 2010); doi: 10.1117/12.860696
Show Author Affiliations
Kamala N. Bhat, Alabama A&M Univ. (United States)
A. K. Batra, Alabama A&M Univ. (United States)
Sudip Bhattacharjee, Alabama A&M Univ. (United States)
Robert W. Taylor, Alabama A&M Univ. (United States)

Published in SPIE Proceedings Vol. 7780:
Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon
Eustace L. Dereniak; Randolph E. Longshore; Manijeh Razeghi; John P. Hartke; Ashok K. Sood; Paul D. LeVan, Editor(s)

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