Hostname: page-component-7bb8b95d7b-nptnm Total loading time: 0 Render date: 2024-09-05T16:04:44.359Z Has data issue: false hasContentIssue false
  • English
  • Français

Hydration Reactions and Etrringite Formation in Selected Cementitious Coal Conversion By-Products

Published online by Cambridge University Press:  15 February 2011

Jody K. Solem  and
Gregory J. McCarthy
Jody K. Solem
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, ND 58105 U.S.A.
Gregory J. McCarthy
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, ND 58105 U.S.A.
Get access

Abstract

Cementitious reactions and ettringite formation, which occur when water is added to high-calcium fly ash, to many dry flue gas desulfurization solids, and to two of the residues from the emerging “clean coal” technologies, fluidized bed combustion and limestone injection multiphase burner, have been studied. The parameters varied included water to solid ratio and curing time. Crystalline reactants and products were monitored by X-ray powder diffraction. The amount of ettringite, the principal crystalline cementitious reaction product, was determined after three months of curing. Results are discussed in terms of available Ca, Al and S in each by-product and w/s ratio.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 245: Symposium K – Advanced Cementitious Systems: Mechanisms and Properties , 1991 , 71
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. McCarthy, G.J., Solem, J.K., Manz, O.E. and Hassett, D.J. in Fly Ash and Coal Conversion By- Products: Characterization. Utilization and Disposal VI, edited by Day, R.L. and Glasser, F.P., Mat. Res. Soc. Symp. Proc. Vol.178 (Materials Research Society, Pittsburgh, 1990), pp. 3–33.Google Scholar
2. McCarthy, G.J., Johansen, D.M., Steinwand, S.J. and Thedchanamoorthy, A., Adv. X-Ray Anal. 31: 331 (1988); G.J. McCarthy and D.M. Johansen, Powder Diffraction 3:156–161 (1988); G.J. McCarthy, K.D. Swanson, L.P. Keller, W.C. Blatter, Cem. Concr. Res. 14, 471 (1984).Google Scholar
3. Thedchanamoorthy, A. and McCarthy, G.J., Ady. X-Ray Anal. 32: 565–572 (1989); G.J. McCarthy and A. Thedchanamoorthy, in Fly Ash and Coal Conversion By-Products: Characterization. Utilization and Disposal V, Mat. Res. Soc. Proc. Vol. D13, Materials Research Society, Pittsburgh, pp.67–76 (1989).Google Scholar
4. Berry, E.E., Hemmings, R.T. and Cornelius, B.J., Commercialization Potential of FBC Concrete: Part 2 Vol.2: Mechanistic Basis for Cementing Action, EPRI Report GS-7122, Vol.2, (1991); E.E. Berry and E.J. Anthony in Fly Ash and Coal Conversion By-Products: Characterization. Utilization and Disposal III, edited by G.J. McCarthy, F.P. Glasser, D.P. Roy & S. Diamond, Mat. Res. Soc. Symp. Proc. Vol. 86 (Materials Research Society, Pittsburgh, 1987), pp.49–58.Google Scholar
5. McCarthy, G.J., Hassett, D.J., Bender, J.A. and Solem, J.K., this volume.Google Scholar
6. Hassett, D.J., Pflughoeft-Hassett, D.F., Kumarathasan, P. and McCarthy, G.J., ”Ettringite as an Agent for the Fixation of Hazardous Oxyanions,” in Proc. 12th Annual Madison Waste Conference on Municipal and Industrial Waste, pp. 471–482 (1989); P. Kumarathasan, G.J. McCarthy, D.J. Hassett and D.F. Pflughoeft-Hassett, in Fly Ash and Coal Conversion By- Products: Characterization. Utilization and Disposal VI, edited by R.L. Day and F.P. Glasser, Mat. Res. Soc. Symp. Proc. Vol. 178 (Materials Research Society, Pittsburgh, 1990), pp. 83- 104.Google Scholar
7. Lea, F.M., The Chemistry of Cement and Concrete, 3rd Ed. (Chemical Publishing Company, Inc., New York, 1971).Google Scholar
8. Jeppesen, K.G. in Fly Ash and Coal Conversion By-Products: Characterization. Utilization and Dispgsal IV, edited by McCarthy, G.J., Glasser, F.P., Roy, D.P. and Hemmings, R. T., Mat. Res. Soc. Symp. Proc. Vol. 113(M aterials Research Society, Pittsburgh, 1988), pp.187–198 Google Scholar