Effect of volcanic-ash on the pyroelectric and dielectric properties of Portland cement

Kamala N. Bhat; A. K. Batra; Sudip Bhattacharjee; Robert W. Taylor

doi:10.1117/12.860696

26 August 2010 Effect of volcanic-ash on the pyroelectric and dielectric properties of Portland cement

Kamala N. Bhat, A. K. Batra, Sudip Bhattacharjee, Robert W. Taylor

Proceedings Volume 7780, Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon; 77800L (2010) https://doi.org/10.1117/12.860696
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

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.

Citation Download Citation

Kamala N. Bhat, A. K. Batra, Sudip Bhattacharjee, and Robert W. Taylor "Effect of volcanic-ash on the pyroelectric and dielectric properties of Portland cement", Proc. SPIE 7780, Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon, 77800L (26 August 2010); https://doi.org/10.1117/12.860696

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