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Hydration in Mortars Manufactured with Ladle Furnace Slag (LFS) and the Latest Generation of Polymeric Emulsion Admixtures

  • Ángel Rodríguez
  • Sara Gutiérrez-González
  • Isabel Santamaría-Vicario
  • Veronica Calderón
  • Carlos Junco
  • Jesús Gadea
Conference paper

Abstract

Ladle furnace slags have successfully been used in the manufacture of masonry mortars. However, this type of steelmaking waste is not easily mixed with the other components, resulting in separation of the mix water and insufficient hydration, which prevents proper setting and hardening of the mixes. Two types of new-generation admixtures were used, in order to facilitate the interaction of the LFS with the cement paste: polyacrylic ester PAE polymers and a polymeric emulsion with a high molecular weight in different proportions. Their influence on the mortar properties in the fresh state, dosed with variable amount of LF slag, is studied. The results show the greater efficiency of the polyacrylic ester PAE admixtures at retaining the mix water, guaranteeing proper hydration of the mortar components and dispersion of the cement paste and the complete hydration of the LF slag.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Ángel Rodríguez
    • 1
  • Sara Gutiérrez-González
    • 1
  • Isabel Santamaría-Vicario
    • 1
  • Veronica Calderón
    • 1
  • Carlos Junco
    • 1
  • Jesús Gadea
    • 1
  1. 1.Department of ConstructionUniversity of BurgosBurgosSpain

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