Mechanical behaviour of alkali-activated blast furnace slag-activated metakaolin blended pastes. Statistical study

Authors

  • I. Higuera Universidad Politécnica de Madrid
  • C. Varga Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc- CSIC)
  • J. G. Palomo Universidad Politécnica de Madrid
  • A. Gil-Maroto Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc- CSIC)
  • T. Vázquez Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc- CSIC)
  • F. Puertas Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc- CSIC)

DOI:

https://doi.org/10.3989/mc.2012.00111

Keywords:

alkaline cements, blast furnace slag, mechanical strength, experimental design, ANOVA

Abstract


The study and development of alternative, more ecoefficient binders than portland cement are attracting a good deal of scientific and technological interest. Binders obtained from the chemical interaction between calcium silico-aluminous materials and highly alkaline solutions are one of several types of such possible cements. The present paper discusses the mechanical behaviour and mineralogical composition of blended pastes made from NaOH-activated vitreous blast furnace slag and metakaolin. The aim of the study was to determine how parameters such as the slag/metakaolin ratio, activating solution concentration and curing temperature affect strength development in these binders. A statistical study was conducted to establish the impact of each variable and model strength behaviour in these alkaline cements. The conclusion drawn is that activator concentration and the slag/metakaolin ratio are both determinant parameters.

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References

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Published

2012-06-30

How to Cite

Higuera, I., Varga, C., Palomo, J. G., Gil-Maroto, A., Vázquez, T., & Puertas, F. (2012). Mechanical behaviour of alkali-activated blast furnace slag-activated metakaolin blended pastes. Statistical study. Materiales De Construcción, 62(306), 163–181. https://doi.org/10.3989/mc.2012.00111

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