Early and late hydration of supersulphated cements of blast furnace slag with fluorgypsum

Authors

  • M. E. Bazaldúa-Medellín Cinvestav Unidad Saltillo
  • A. F. Fuentes Cinvestav Unidad Saltillo
  • A. Gorokhovsky Saratov State Technical University
  • J. I. Escalante-García Cinvestav Unidad Saltillo

DOI:

https://doi.org/10.3989/mc.2015.06013

Keywords:

Supersulphated, C-S-H, Ettringite, hydration, microstructures

Abstract


The hydration, strength development and composition of hydration products of supersulphated cements were characterized from the first 48 hours up to 360 days. Two compositions of 80% Blast furnace slag, 10–15% Fluorgypsum and 10–5% Portland cement were cured in dry and wet conditions. The main hydration products were ettringite and C-S-H since the first hours and up to 360 days as evidenced by X-ray diffraction, thermal analysis and electron microscopy. The strength was favored by higher fluorgypsum contents and lower Portland cement contents. These cements generated heats of hydration of 40–57 KJ/Kg after 28 hours, which are lower than portland cement.

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Published

2015-03-30

How to Cite

Bazaldúa-Medellín, M. E., Fuentes, A. F., Gorokhovsky, A., & Escalante-García, J. I. (2015). Early and late hydration of supersulphated cements of blast furnace slag with fluorgypsum. Materiales De Construcción, 65(317), e043. https://doi.org/10.3989/mc.2015.06013

Issue

Section

Research Articles