Influence of fly ashes with different glassy phase structure on properties of cement pastes and mortars
Ewelina Tkaczewska
Department of Building Material Technology; Faculty of Materials Science and Ceramics; AGH University of Science and Technology (Poland)
Abstract
Work analyzes relationship between fly ash pozzolanic activity and structure of its glass component. Model silica fly ashes are prepared by mixing synthetic glass, synthetic mullite and SiO2. Chemical composition of glasses was based on value of parameter ASI, defined as ratio of Al2O3/(Na2O+K2O+2CaO). Glass structure was built main by tetrahedra SiO4. In glass of parameter ASI<1, Al ions occur only in tetrahera AlO4, but in glass of parameter ASI>1, additionally in octahedra AlO6. It was found that glass containing in its structure Al ion in coordination 4 and 6 shows greater reactivity – more active Al2O3, higher pozzolanic indexes and positive effect on lime mortar strength. Cement with addition of ash containing glass of higher value of ASI has higher hydration heat and higher compressive strength. Using 20wt% of ashes it is possible to obtain cement CEM II/A-V, class 32.5R (Al ion in AlO4) or class 42.5N (Al ion in AlO4 and AlO6)
Keywords:
glass, cement, hydration heat, compressive strength, microstructureReferences
Lee S.H., Sakai E., Diamon M., Bang W.K. Cem Conc Res. 29 (1999) 1791.
DOI: https://doi.org/10.1016/S0008-8846(99)00169-6
Google Scholar
Małolepszy J., Tkaczewska E. V Konf. PTCer, Zakopane 2005, s.1143.
Google Scholar
Tkaczewska E. Drogi i Mosty, Instytut Badawczy Dróg i Mostów, Warszawa 2008, Nr 4, s.47.
Google Scholar
Bumrongjaroen W., Swatekititham S., Livingston R.A., Schweitzer J. 9th CANMET/ACI Inter. Conf. on Fly Ash, Silica Fume, Slag and Natural Pozzolans in Concrete, Warszawa 2007, s.267.
Google Scholar
Tkaczewska E., Małolepszy J. Cement Wapno Beton 3(2009) 148.
Google Scholar
Małolepszy J., Tkaczewska E. 53 Konf. Naukowa Komitetu Inżynierii Lądowej i Wodnej PAN i Komitetu Nauki PZITB, Krynica 2007, s.119.
Google Scholar
Małolepszy J., Tkaczewska E. 54 Konf. Naukowa Komitetu Inżynierii Lądowej i Wodnej PAN i Komitetu Nauki PZITB, Krynica 2008, s.411.
Google Scholar
Tkaczewska E., Sitarz M. VI Konf. Naukowo-Techniczna MATBUD’2011, Kraków 2011, s.411.
Google Scholar
Tkaczewska E. 13th Inter. Congress on the Chemistry of Cement, Madrid 2011, s.295.
Google Scholar
Tkaczewska E., Sitarz M. Phys. Chem. Glasses: Eur. J. Glass Sci. Technol. B 54 (2013) 89.
Google Scholar
Ward C.R., French D. w: Characteristics of Australian Fly ashes (eds. Ward C.R., Framch D.), Technical Note 21, Co-operative Research Centre for Coal Sustainable Development, QCAT Technology Transfer Centre, Technology Court, Pullenvale 2003, s.1.
Google Scholar
Dong Y., Hampshire S., Zhou J., Ji Z., Wang J., Meng G. J Eur Ceram Soc 31 (2011) 687.
DOI: https://doi.org/10.1016/j.jeurceramsoc.2010.12.012
Google Scholar
Montanaro L., Perrot Ch., Esnouf C., Thollet G., Fantozzi G., Negro A. J Am Ceram Soc 83 (2000) 189.
DOI: https://doi.org/10.1111/j.1151-2916.2000.tb01169.x
Google Scholar
Shao Y., Lefort T., Moras S. Rodriguez D. Cem Conc Res 30 (2000) 91.
DOI: https://doi.org/10.1016/S0008-8846(99)00213-6
Google Scholar
Engelhardt G., Nofz M., Forkel K., Wihsmann F.G., Magi M., Samoson A., Lippmann E. Phys Chem Glasses 26 (1985) 157.
Google Scholar
Lacey E.D. Phys Chem Glasses 4 (1963) 234.
Google Scholar
Lowenstein W. Am. Minerol. 39 (1954) 92.
Google Scholar
Day D.E., Rindone G.E. J Am Ceram Soc 45(1962) 489, 496, 579.
DOI: https://doi.org/10.1111/j.1151-2916.1962.tb11040.x
Google Scholar
Rüssel C. Glastech. Ber. 66 (1993) 93.
DOI: https://doi.org/10.2307/408517
Google Scholar
Rüssel C. Glastech. Ber. 66 (1993) 68.
Google Scholar
Gerlach S., Claußen O., Rüssel C. J. Non-Cryst. Solids 238 (1998) 75.
DOI: https://doi.org/10.1016/S0022-3093(98)00681-4
Google Scholar
Wiedenroth A., Rüssel C. J. Non-Cryst. Solids 290 (2001) 41.
DOI: https://doi.org/10.1016/S0022-3093(01)00715-3
Google Scholar
Wiedenroth A., Rüssel C. J. Non-Cryst. Solids 320 (2003) 238.
DOI: https://doi.org/10.1016/S0022-3093(03)00076-0
Google Scholar
Tarte P. SpectrochimActa 23A (1967) 2127.
DOI: https://doi.org/10.1016/0584-8539(67)80100-4
Google Scholar
ASTM C379-65. Specification for Fly Ash for Use as a Pozzolanic Material with Lime. American Society for Testing and Materials (Withdrawn 1966).
Google Scholar
ASTM C593-06. Standard Specification for Fly Ash and Other Pozzolans for Use With Lime. American Society for Testing and Materials.
Google Scholar
PN-EN 450-1:2009. Popiół lotny do betonu – Część 1: Definicje, specyfikacje i kryteria zgodności.
Google Scholar
PN-EN 196-1:2006. Metody badania cementu – Część 1: Oznaczanie wytrzymałości.
Google Scholar
PN-EN 197-1:2012. Cement – Część 1: Skład, wymagania i kryteria zgodności dotyczące cementów powszechnego użytku.
Google Scholar
Authors
Ewelina TkaczewskaDepartment of Building Material Technology; Faculty of Materials Science and Ceramics; AGH University of Science and Technology Poland
Statistics
Abstract views: 193PDF downloads: 91
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Budownictwo i Architektura supports the open science program. The journal enables Open Access to their publications. Everyone can view, download and forward articles, provided that the terms of the license are respected.
Publishing of articles is possible after submitting a signed statement on the transfer of a license to the Journal.
