Preparation and characterization of alkali-activated white belite cements


  • K. Morsli Universidad de Málaga. Université Chouaib Doukkali, El Jadida
  • Ángeles G. de la Torre Universidad de Málaga
  • Antonio J. M. Cuberos Universidad de Málaga
  • Mohammed Zahir Université Chouaib Doukkali, El Jadida
  • Miguel A. G. Aranda Universidad de Málaga



activated white belite cements, X-ray diffraction, Rietveld method, isothermal conduction calorimetry


Activated white cement clinkers with a theoretical 60% (wt) belite (dicalcium silicate) content were prepared at a temperature 100 ºC lower than used to manufacture conventional white Portland cement clinkers. Activation was achieved by adding variable amounts of K2CO 3 or Na2CO 3 to the raw mixes. Rietveld quantitative analysis of X-ray diffraction findings showed that adding the alkalis stabilized the high temperature belite polymorphs. When 2.0% (wt) of Na2O was added, the composition (by wt) found was 16.4(4)% alpha-C2S, 16.7(8)% alpha’-H-C2S, 23.2(6)% beta-C2S, 32.7(7)% total C3S, 9.5(2)% orthorhombic C3A and 1.50(5)% free lime. Due to the high volatilization rate of K2O under the experimental conditions, it stabilized the alpha-type C2S less effectively than Na2O. A calorimetric study was likewise performed to correlate the phase composition with early age hydration (behaviour).


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How to Cite

Morsli, K., de la Torre, Ángeles G., Cuberos, A. J. M., Zahir, M., & Aranda, M. A. G. (2009). Preparation and characterization of alkali-activated white belite cements. Materiales De Construcción, 59(294), 19–29.



Research Articles