Electrical conductivity and dielectric property of fly ash geopolymer pastes

The electrical conductivity and dielectric property of fly ash geopolymer pastes in a frequency range of 100 Hz-10 MHz were studied. The effects of the liquid alkali solution to ash ratios (L/A) were analyzed. The mineralogical compositions and microstructures of fly ash geopolymer materials were al...

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Main Authors: Hanjitsuwan S., Chindaprasirt P., Pimraksa K.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-79956095818&partnerID=40&md5=5307d70045b64aaa461ed4621b0d43bc
http://cmuir.cmu.ac.th/handle/6653943832/6617
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-66172014-08-30T03:24:24Z Electrical conductivity and dielectric property of fly ash geopolymer pastes Hanjitsuwan S. Chindaprasirt P. Pimraksa K. The electrical conductivity and dielectric property of fly ash geopolymer pastes in a frequency range of 100 Hz-10 MHz were studied. The effects of the liquid alkali solution to ash ratios (L/A) were analyzed. The mineralogical compositions and microstructures of fly ash geopolymer materials were also investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The 10 mol sodium hydroxide solution and sodium silicate solution at a sodium silicate-to-sodium hydroxide ratio of 1.0 were used in making geopolymer pastes. The pastes were cured at 40°C. It is found that the electrical conductivity and dielectric constant are dependent on the frequency range and L/A ratios. The conductivity increases but the dielectric constant decreases with increasing frequency. © 2011 University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg. 2014-08-30T03:24:24Z 2014-08-30T03:24:24Z 2011 Article 16744799 10.1007/s12613-011-0406-0 http://www.scopus.com/inward/record.url?eid=2-s2.0-79956095818&partnerID=40&md5=5307d70045b64aaa461ed4621b0d43bc http://cmuir.cmu.ac.th/handle/6653943832/6617 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description The electrical conductivity and dielectric property of fly ash geopolymer pastes in a frequency range of 100 Hz-10 MHz were studied. The effects of the liquid alkali solution to ash ratios (L/A) were analyzed. The mineralogical compositions and microstructures of fly ash geopolymer materials were also investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The 10 mol sodium hydroxide solution and sodium silicate solution at a sodium silicate-to-sodium hydroxide ratio of 1.0 were used in making geopolymer pastes. The pastes were cured at 40°C. It is found that the electrical conductivity and dielectric constant are dependent on the frequency range and L/A ratios. The conductivity increases but the dielectric constant decreases with increasing frequency. © 2011 University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg.
format Article
author Hanjitsuwan S.
Chindaprasirt P.
Pimraksa K.
spellingShingle Hanjitsuwan S.
Chindaprasirt P.
Pimraksa K.
Electrical conductivity and dielectric property of fly ash geopolymer pastes
author_facet Hanjitsuwan S.
Chindaprasirt P.
Pimraksa K.
author_sort Hanjitsuwan S.
title Electrical conductivity and dielectric property of fly ash geopolymer pastes
title_short Electrical conductivity and dielectric property of fly ash geopolymer pastes
title_full Electrical conductivity and dielectric property of fly ash geopolymer pastes
title_fullStr Electrical conductivity and dielectric property of fly ash geopolymer pastes
title_full_unstemmed Electrical conductivity and dielectric property of fly ash geopolymer pastes
title_sort electrical conductivity and dielectric property of fly ash geopolymer pastes
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-79956095818&partnerID=40&md5=5307d70045b64aaa461ed4621b0d43bc
http://cmuir.cmu.ac.th/handle/6653943832/6617
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