Untersuchung von Gast-Ionen-Aufnahme in Portlandzement - Teil 2

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  • J. Skibsted
  • T.F. Sevelsted, Denmark
  • S.L. Poulsen, Denmark
  • T.T. Tran, Denmark
Studies have demonstrated that solid-state nuclear magnetic resonance (NMR) spectroscopy allows identification of the incorporation of guest ions in minor components in the phases of Portland cement clinker. A series of Portland clinkers were prepared with a fixed AlO and SO content where the SO/KO ratio is varied by adjusting the quantities of added CaSO and K2SO. The incorporation of small amounts of phosphorus in anhydrous Portland cement has been studied by P MAS NMR for four commercial cements with bulk phosphorus contents in the range 0.08-0.45 wt.% PO which are typical for production Portland clinkers. Guest ions in anhydrous and hydrated cement phases may become more important in future cement-based materials, following the development of new cement blends including new supplementary cementitious materials and the use of alternative fuel sources in the cement kilns.
Original languageEnglish
JournalZKG International
Pages (from-to)46-52
Number of pages7
Publication statusPublished - 1 Jan 2013

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