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Hydraulic activity and microstructural characterization of new fly ash–belite cements synthesized at different temperatures

Published online by Cambridge University Press:  31 January 2011

A. Guerrero ,
S. Goñi ,
A. Macías  and
M. P. Luxán
A. Guerrero
Affiliation:
Institute of Construction Science “Eduardo Torroja” CSIC, Serrano Galvache s/n 28033, Madrid, Spain
S. Goñi
Affiliation:
Institute of Construction Science “Eduardo Torroja” CSIC, Serrano Galvache s/n 28033, Madrid, Spain
A. Macías
Affiliation:
Institute of Construction Science “Eduardo Torroja” CSIC, Serrano Galvache s/n 28033, Madrid, Spain
M. P. Luxán
Affiliation:
Institute of Construction Science “Eduardo Torroja” CSIC, Serrano Galvache s/n 28033, Madrid, Spain
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Abstract

The influence of the synthesis temperature of a new fly ash–belite cement (FABC) on its hydraulic activity and microstructural characteristics is discussed in this work. Three types of FABC were synthesized at 700, 800, and 900 °C after a previous hydrothermal treatment at 200 °C of the fly ash, CaO, and water mixture. The hydraulic activity of the pastes was evaluated during a period of 200 days from mixing through the combined water content, previously determined from thermogravimetric analyses, and the hydration advance degree by x-ray diffraction (XRD). The microstructure characterization of the pastes was studied by scanning electron microscopy (SEM).

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 6 , June 1999 , pp. 2680 - 2687
Copyright
Copyright © Materials Research Society 1999

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References

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