Journal of Materials Science

, Volume 44, Issue 20, pp 5609–5617 | Cite as

Reaction progress of alkaline-activated metakaolin-ground granulated blast furnace slag blends

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Abstract

Ground granulated blast furnace slag (ggbf slag) and metakaolin were blended and the combination was activated by sodium hydroxide solution. Two mix series were investigated, one with low NaOH concentration (9–16 wt%) and the other with a high NaOH concentration of 25 wt%. The reaction progress of the alkali-activated pastes was indirectly measured by isothermal calorimetry as well as by ultrasonic measurements. Both methods show an acceleration of the condensation reaction of the alkali-activated blends compared to both single phases. The acceleration effect is more considerable at the higher activator concentration related to a higher reaction degree of the metakaolin.

Keywords

Ultrasonic Velocity EPDM Calcium Silicate Hydrate Heat Evolution Ground Granulate Blast Furnace Slag 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Building ChemistryBauhaus-University WeimarWeimarGermany
  2. 2.ASCEM B.V.BeekThe Netherlands
  3. 3.F.A. Finger-Institute for Building Materials ScienceBauhaus-University WeimarWeimarGermany
  4. 4.Group of Building Materials and Building ChemistryTechnical University KasselKasselGermany

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