The influence of natural pozzolana mineralogical composition in the properties of blended cement

Authors

  • M. Gener Rizo Centro Técnico para el Desarrollo de los Materiales de Construcción y de la Empresa Constructora del Poder Popular de Ciudad de La Habana
  • J. M. Alonso Lavernia Centro Técnico para el Desarrollo de los Materiales de Construcción y de la Empresa Constructora del Poder Popular de Ciudad de La Habana

DOI:

https://doi.org/10.3989/mc.2002.v52.i267.327

Keywords:

cement, pozzolana, activity, composition, strength

Abstract


The pozzolana activity is the main property of the active additions but, in order to select them, we have to consider - between other factors- its mineralogical composition with a great influence, not only in the active component, but also in other cement properties. In the present work we have studied 4 different Cuban natural pozzolanes, characterized with the help of X ray diffraction and with thermic and chemical analysis. The pozzolanic activity was also evaluated through a chemical and physicomechanic method. Some cements were prepared with different contents of each one of the pozzolanics, and analysed their physicomechanic and chemical properties. Finally, we found that the pozzolanics mineralogical composition has a great influence in the pozzolanic activity and in the properties of mixed cements. Also we found that it 5 possible to obtain the best resistances in the time and the smaller needs of water when the vitreous phase prevail in the additions.

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Published

2002-09-30

How to Cite

Gener Rizo, M., & Alonso Lavernia, J. M. (2002). The influence of natural pozzolana mineralogical composition in the properties of blended cement. Materiales De Construcción, 52(267), 73–77. https://doi.org/10.3989/mc.2002.v52.i267.327

Issue

Section

Research Articles