Browsing by Author "Goni, S."
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Item High calcium coal fly ash as raw material for synthesizing new low-energy cements(American Concrete Institute, 2004-05-01) Goni, S.; Guerrero, A.; Lorenzo, M. P.; Moragues, A.; Campillo, I.; Dolado, J. S.; Malhotra, V.Mohan; Tecnalia Research & InnovationStudies on the viability of high calcium fly ash from coal combustion are being conducted in our laboratory to produce a new kind of low-energy cement. The process presents important environmental advantages, such as a reduction of C02 emission compared to that produced by the conventional technology of portland cement manufacture. Furthermore, the processing temperature is also considerably reduced. The low-energy cement shows potential for good hydraulic activity for application in construction. The changes of fly ash composition were followed by X-Ray Diffraction (XRD), F f Infrared (FTIR) spectroscopy and BET surface area analysis.