The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
In Situ ATR-FTIR Study of the Early Stages of Fly Ash Geopolymer Gel Formation
Abstract
The kinetics of geopolymer formation are monitored using a novel in situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopic technique. Reaction rates are determined from the intensity variation of the bands related to the geopolymer gel network and the unreacted fly ash particles. Comparison with deuterated geopolymer samples provides critical information regarding peak assignments. An initial induction (lag) period is observed to occur for hydroxide-activated geopolymers, followed by gel evolution according to an approximately linear reaction profile. The length of the lag period is reduced by increasing the concentration of NaOH. An increase in the rate of network formation also occurs with increasing NaOH concentration up to a maximum point, beyond which an increased NaOH concentration leads to a reduced rate of network formation. This trend is attributed to the competing effects of increased alkalinity and stronger ion pairing with an increase in NaOH concentration. In situ analysis also shows that the rate of fly ash dissolution is similar for all moderate- to high-alkali geopolymer slurries, which is attributed to the very highly water-deficient nature of these systems and is contrary to predictions from classical glass dissolution chemistry. This provides for the first time detailed kinetic information describing fly ash geopolymer formation kinetics.
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Cites
Geopolymers: Inorganic polymeric new materials
Davidovits, J. (1991) · Journal of Thermal Analysis · doi:10.1007/bf01912193 · Cited by 4,251
Duxson, P., Provis, J. L., Lukey, G. C., Mallicoat, S. W., Kriven, W. M., & van Deventer, J. S. J. (2005) · Colloids and Surfaces A: Physicochemical and Engineering Aspects · doi:10.1016/j.colsurfa.2005.06.060 · Cited by 1,807
Self-citationThe hydrothermal synthesis of zeolites: Precursors, intermediates and reaction mechanism
Cundy, C. S., & Cox, P. A. (2005) · Microporous and Mesoporous Materials · doi:10.1016/j.micromeso.2005.02.016 · Cited by 1,590
(1970) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(70)90052-9 · Cited by 813
Characterisation of fly ashes. Potential reactivity as alkaline cements☆
Fernández-Jiménez, A., & Palomo, A. (2003) · Fuel · doi:10.1016/s0016-2361(03)00194-7 · Cited by 690
Molecular mechanisms for corrosion of silica and silicate glasses
Bunker, B. C. (1994) · Journal of Non-Crystalline Solids · doi:10.1016/0022-3093(94)90708-0 · Cited by 635
The role played by the reactive alumina content in the alkaline activation of fly ashes
Fernández-Jiménez, A., Palomo, A., Sobrados, I., & Sanz, J. (2006) · Microporous and Mesoporous Materials · doi:10.1016/j.micromeso.2005.11.015 · Cited by 590
Energetic clues to pathways to biomineralization: Precursors, clusters, and nanoparticles
Navrotsky, A. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0404778101 · Cited by 554
Controls on silicate dissolution rates in neutral and basic pH solutions at 25°C
Brady, P. V., & Walther, J. V. (1989) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(89)90160-9 · Cited by 441
Kovalchuk, G., Fernández-Jiménez, A., & Palomo, A. (2007) · Fuel · doi:10.1016/j.fuel.2006.07.010 · Cited by 398
Effect of Curing Temperature and Silicate Concentration on Fly-Ash-Based Geopolymerization
Sindhunata, van Deventer, J. S. J., Lukey, G. C., & Xu, H. (2006) · Industrial & Engineering Chemistry Research · doi:10.1021/ie051251p · Cited by 390
Self-citationPhair, J. W., & Van Deventer, J. S. J. (2002) · International Journal of Mineral Processing · doi:10.1016/s0301-7516(02)00013-3 · Cited by 295
Self-citationFernández-Jiménez, A., de la Torre, A. G., Palomo, A., López-Olmo, G., Alonso, M. M., & Aranda, M. A. G. (2006) · Fuel · doi:10.1016/j.fuel.2006.04.006 · Cited by 221
Steveson, M., & Sagoe-Crentsil, K. (2005) · Journal of Materials Science · doi:10.1007/s10853-005-2794-x · Cited by 207
Hamilton, J. P., Brantley, S. L., Pantano, C. G., Criscenti, L. J., & Kubicki, J. D. (2001) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(01)00724-4 · Cited by 204
Infrared Spectra of Layer‐Structure Silicates
Stubican, V. S., & Roy, R. (1961) · Journal of the American Ceramic Society · doi:10.1111/j.1151-2916.1961.tb11670.x · Cited by 109
Alkaline Activation of Metakaolin An Isothermal Conduction Calorimetry Study
Granizo, M. L., & Blanco‐Varela, M. T. (1998) · Journal of Thermal Analysis and Calorimetry · doi:10.1023/a:1010176321136 · Cited by 85
Rahier, H., Denayer, J. F. M., & Mele, B. V. (2003) · Journal of Materials Science · doi:10.1023/a:1024733431657 · Cited by 77
LIEBAU, F. (1984) · Inorganica Chimica Acta · doi:10.1016/s0020-1693(00)82422-6 · Cited by 43
A critical review of the isotope effect in IR spectra
Szafran, M., & DEGA‐SZAFRAN, Z. (1994) · Journal of Molecular Structure · doi:10.1016/0022-2860(93)08206-j · Cited by 25
Cited by
New cements for the 21st century: The pursuit of an alternative to Portland cement
Shi, C., Jiménez, A. F., & Palomo, A. (2011) · Cement and Concrete Research · doi:10.1016/j.cemconres.2011.03.016 · Cited by 1,691
Advances in understanding alkali-activated materials
Provis, J. L., Palomo, A., & Shi, C. (2015) · Cement and Concrete Research · doi:10.1016/j.cemconres.2015.04.013 · Cited by 1,537
Self-citationTechnical and commercial progress in the adoption of geopolymer cement
Van Deventer, J. S. J., Provis, J. L., & Duxson, P. (2012) · Minerals Engineering · doi:10.1016/j.mineng.2011.09.009 · Cited by 820
Self-citationDurability of Alkali‐Activated Materials: Progress and Perspectives
Bernal, S. A., & Provis, J. L. (2014) · Journal of the American Ceramic Society · doi:10.1111/jace.12831 · Cited by 547
Self-citationZhang, Z., Wang, H., Provis, J. L., Bullen, F., Reid, A., & Zhu, Y. (2012) · Thermochimica Acta · doi:10.1016/j.tca.2012.03.021 · Cited by 494
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Metadata
- Authors
- Rees, C. A., Provis, J. L., Lukey, G. C., & van Deventer, J. S. J.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-21
- Volume
- 23
- Issue
- 17
- Pages
- 9076-9082
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2020292224
- Cited by
- 411
- References
- 20
- FWCI
- 27.73
- Type
- journal article
- Language
- en
- Open access
- closed
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