Investigations
of the influence of different fly ashes on cement hydration |
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| Authors: | B Pacewska G Blonkowski I Wilińska |
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| Institution: | (1) Faculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Chemistry, Warsaw University of Technology, Płock, Poland, 09-400, Łukasiewicza 17 |
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| Abstract: | Investigations of physico-chemical properties
of three kinds of fly ash and their influence on cement hydration were performed
in this work. Thermal analysis, microcalorimetry, infrared absorption and
others were used. It was confirmed that the kind of coal and combustion conditions
essentially influence physico-chemical properties of fly ash and in consequence
influence cement hydration. Investigated fly ashes show in cement system so-called
pozzolanic activity. Fly ash from combustion of brown coal in fluidized furnace
revealed better activity compared to other investigated ones. This work is
an introduction to more extensive investigation of fly ash activation. |
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| Keywords: | cement hydration cement paste fly ash pozzolanic activity |
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