Hydrothermal synthesis of tobermorite from fly ashes

Advances in Cement Research

Volumn 9, Issue 33, 1997, Pages 9-16

  Ma, Weiping ^a   Brown, P W ^a  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPOSITION; FLY ASH; MIXTURES; POROUS MATERIALS; SODIUM COMPOUNDS; SYNTHESIS (CHEMICAL);

HYDROTHERMAL SYNTHESIS; PORE SIZE DISTRIBUTION; SODIUM HYDROXIDE;

OXIDE MINERALS;

EID: 0030844148     PISSN: 09517197     EISSN: None     Source Type: Journal    
DOI: 10.1680/adcr.1997.9.33.9     Document Type: Article

References (19)

1. BLAND, A. E., JONES, C. E., ROSE, J. G. and HARNESS, J. L. Performance characteristics of concrete produced with fluidized bed combustion ash residue. Proc. Fly Ash and Coal Conversion By-products: Characterization, Utilization and Disposal V (ed. R. T. Hemmings) Mater. Res. Soc. Symp. Proc. 1989, 136, 23-36.
2. DIAMOND, S. On the glass present in low-calcium and in high-calcium fly ashes. Cem. Concr. Res., 1983, 13, 459-464.
3. MITSUDA, T. and CHAN, C. F. Anomalous tobermorite in autoclaved aerated concrete. Cem. Concr. Res., 1977, 7, 191-194.
4. SCHEETZ, B. E. and ROY, D. M. Preliminary survey of the stability of silica-rich cementitious mortar, 8L-22 and 84-12 Tuff. LA 11222-MS, 00-70, Los Alamos National Laboratory, Los Alamos, NM, 1989.
5. HEILMAN, R. B. Interaction of cements and radioactive waste forms in multicomponent systems at 200°C: Part II. Mineralogical change of cement. Cem. Concr. Res., 1988, 18, 554-560.
6. ISU, N., SASAKI, K., ISHIDA, H. and MITSUDA, T. Mechanical property evolution during autoclaving process of aerated concrete using slag: I, Tobermorite formation and reaction behavior of slag. J. Am. Ceram. Soc., 1994, 77, 2088-2092.
7. 27Al NMR and EELS. J. Am. Ceram. Soc., 1993, 76, 2285-2288.
8. ROY, D. M. and JOHNSON, A. M. Investigations of stabilities of calcium silicate hydrates at elevated temperatures and pressures. Proc. Conf. Calcium Silicate Building Products, SCI Special Publication, Society of Chemical Industry, London, 1967, pp. 114-121.
9. KOMARNENI, S., ROY, R. and ROY, D. M. Pseudomorphism in xonotlite with Co2+ and Ni2+ exchange for Ca2+ at 25°C. Cem. Concr. Res., 1986, 16, 47-58.
10. MA, W., BROWN, P. W. and KOMARNENI, S. Sequestration of cesium and strontium by tobermorite synthesized from fly ashes. J. Am. Ceram. Soc. (accepted for publication).
11. KOMARNENI, S., ROY, D. M. and ROY, R. Al-substituted tobermorite: shows cation exchange. Cem. Concr. Res., 1982, 12, 773-780.
12. KOMARNENI, S. and TSUJI, M. Selective cation exchange in substituted tobermorites. J. Am. Ceram. Soc., 1989, 72, 1668-1674.
13. TSUJI, M. and KOMARNENI, S. Alkali metal ion exchange and selectivity of Al-substituted tobermorite. J. Mater. Res., 1989, 4, 698-703.
14. KOMARNENI, S. Heavy metal removal from aqueous solutions by tobermorites and zeolites. Nuclear and Chemical Waste Management, 1985, 5, 247-250.
15. SAKIYAMA, M. and MITSUDA, T. Hydrothermal reaction between C-S-H and kaolinite for the formation of tobermorite at 180°C. Cem. Concr. Res., 1977, 7, 681-686.
16. MITSUDA, T. and TAYLOR, H. F. M. Influence of aluminum on the conversion of calcium silicate hydrate gels into 11 Å tobermorite at 90°C and 120°C. Cem. Concr. Res., 1975, 5, 203-210.
17. 2O at elevated temperatures and pressures. Mineralogical Mag., 1968, 36, 1090-1102.
18. MITSUDA, T. Paragenesis of 11 Å tobermorite and poorly crystalline hydrated magnesium silicate. Cem. Concr. Res., 1973, 3, 71-80.
19. 2+ uptake by synthetic tobermorite and xonotlite. Cem. Conor. Res., 1991, 21, 83-90.