? 2015 CSIC.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.
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