Evaluation of kaolinitic clays of the Mir manifestation as supplementary cementitious material

Authors

  • Alfredo E. Hidalgo-Suárez Universidad de Moa, Moa, Cuba
  • Luis A. Pérez-García Universidad de Moa, Moa, Cuba
  • Angel E. Espinosa-Borges Universidad de Moa, Moa, Cuba
  • Livan García-Obregón Universidad de Moa, Moa, Cuba
  • Carlos G. Herrera-Sánchez Universidad de Moa, Moa, Cuba

Keywords:

construction materials, cement, X-ray techniques

Abstract

The chemical, mineralogical and pozzolanic reactivity characteristics of clays from the Mir clay deposit were evaluated for their use as supplementary cementitious material. Sampling was carried out for the selection of the clayey material by means of the furrow method, for the later elaboration of composite samples that guarantee a greater homogeneity of the material studied. X-Ray Diffraction and X-Ray Fluorescence techniques were used for the characterization of the natural material and the Aluminum-Soluble Silicon Protocol and the R3 method were used to evaluate the pozzolanic reactivity of thermally activated clays. Through chemical analysis, high values of alumina and silica were determined, and low concentrations of sodium, potassium, iron, sulfur and titanium. It was established that the mineral paragenesis that makes up these clays is made up of kaolinite, dickite, quartz, albite, muscovite, hematite and amorphous material. It is observed that the increase in pozzolanic reactivity under conditions of decreased specific surface can be attributed to structural and morphological changes in the crystalline structure of the mineral phases that participate in the thermal activation process.

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References

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Published

2022-02-28

How to Cite

Hidalgo-Suárez, A. E., Pérez-García, L. A., Espinosa-Borges, A. E., García-Obregón, L., & Herrera-Sánchez, C. G. (2022). Evaluation of kaolinitic clays of the Mir manifestation as supplementary cementitious material. Science & Future, 12(1), 1–16. Retrieved from https://revista.ismm.edu.cu/index.php/revistacyf/article/view/2127

Issue

Section

Ciencia Universitaria

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