Quantitative study of the reactivity of fly ash in geopolymerization by FTIR
Article
Article Title | Quantitative study of the reactivity of fly ash in geopolymerization by FTIR |
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ERA Journal ID | 201155 |
Article Category | Article |
Authors | Zhang, Zuhua (Author), Wang, Hao (Author) and Provis, John L. (Author) |
Journal Title | Journal of Sustainable Cement-Based Materials |
Journal Citation | 1 (4), pp. 154-166 |
Number of Pages | 13 |
Year | 2012 |
Publisher | Taylor & Francis |
Place of Publication | London, United Kingdom |
ISSN | 2165-0373 |
2165-0381 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/21650373.2012.752620 |
Abstract | Fourier transform infrared (FTIR) spectroscopy has been applied to analyse the environments of Al–O and Si–O bonds in fly ash, which are used as raw materials of geopolymer synthesis. It is noted that the relative intensities of the bands at around 1000, 910 and 700 cm-1 are much higher in fly ash with higher reactivity, as reflected by the compressive strength of geopolymer. Deconvolution analysis of the band from 400 to 1400 cm-1 shows that the cumulative area of these three resolved bands, together with the band at 1090 cm-1, which is assigned to the asymmetric stretching of Si(Al)–O–Si, is proportional to the reactivity of fly ash. If it is assumed that the area of the resolved bands is proportional to the concentration of the corresponding bonds, a general indication is therefore that fly ash containing more reactive bonds will exhibit higher reactivity in geopolymerisation. FTIR spectroscopy in combination with particle size analysis provides a fast approach to predict the reactivity of fly ash,from the perspective of aluminosilicate glass chemistry. |
Keywords | geopolymer; fly ash; FTIR; reactivity; glass chemistry |
ANZSRC Field of Research 2020 | 401606. Glass |
400505. Construction materials | |
490406. Lie groups, harmonic and Fourier analysis | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Faculty of Engineering and Surveying |
Centre of Excellence in Engineered Fibre Composites | |
University of Melbourne | |
Event | 8th Asian-Australasian Conference on Composite Materials (ACCM 2012): Composites: Enabling Tomorrow's Industry Today |
Institution of Origin | University of Southern Queensland |
ISBN | 9781629930664 |
Event Details | 8th Asian-Australasian Conference on Composite Materials (ACCM 2012): Composites: Enabling Tomorrow's Industry Today Event Date 06 to end of 08 Nov 2012 Event Location Kuala Lumpur, Malaysia |
https://research.usq.edu.au/item/q1qq0/quantitative-study-of-the-reactivity-of-fly-ash-in-geopolymerization-by-ftir
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