Hydrolytic stability of sodium silicate gels in the presence of aluminum
Source abstract
Abstract
Polycondensation in alkali silicate solutions comprises a fundamental process of the geopolymerization technology. Previous works had shown that the hydrolytic stability of sodium silicate gels depends on the SiO2/Na2O ratio. Sodium silicate gels totally insoluble in water can be produced at SiO2/Na2O molar ratios higher than 4.4. This article aims at elucidating the effect of tetra-coordinated aluminum addition on the hydrolytic stability of sodium silicate gels. According to the results, the aluminum addition stabilizes the sodium silicate gels in an aqueous environment. A sodium silicate gel with SiO2/Na2O molar ratio 3.48, which is totally soluble in deionized water at ambient temperature, can be transformed to insoluble sodium hydroaluminosilicates with the addition of tetrahedral aluminum at Al/Si molar ratios higher than 0.08. In addition, this article studies the structure of prepared sodium hydroaluminosilicates and draws very useful conclusions for the geopolymerization technology.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Building materials and conservation · CO2 Sequestration and Geologic Interactions
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References (32)
Show source-provided references
1. Davidovits J (2008) Geopolymer chemistry & applications, Chap. 2, 2nd edn. Institute Géopolymère, Saint-Quentin, p 19
2. Dimas D, Giannopoulou I, Panias D (2009) J Mater Sci 44:3719. doi: 10.1007/s10853-009-3497-510.1007/s10853-009-3497-5 ↗
3. Vallepu R, Fernandez Jimenez AM, Terai T, Mikuni A, Palomo A, Mackenzie KJD, Ikeda K (2006) J Ceram Soc Jpn 114(7):62410.2109/jcersj.114.624 ↗
4. Feng D, Mikuni A, Hirano Y, Komatsu R, Ikeda K (2006) J Ceram Soc Jpn 113(1):82
5. Davidovits J (2005) Geopolymer 2005 world congress, Saint-Quentin, France, pp 9–39
6. Panias D, Giannopoulou I, Perraki T (2007) Colloids Surf A 301:24610.1016/j.colsurfa.2006.12.064 ↗
7. Maragos I, Giannopoulou I, Panias D (2008) Miner Eng 22:19610.1016/j.mineng.2008.07.003 ↗
8. Dimas D, Giannopoulou I, Panias D (2009) Miner Process Extr Metall Rev 30:21110.1080/08827500802498199 ↗
9. Xu H, van Deventer JSJ (2000) Int J Miner Process 59:24710.1016/S0301-7516(99)00074-5 ↗
10. Palomo A, Grutzeck MW, Blanco MT (1999) Cem Concr Res 29:132310.1016/S0008-8846(98)00243-9 ↗
11. Cheng TW, Chiu JP (2003) Miner Eng 16:20510.1016/S0892-6875(03)00008-6 ↗
12. Wu HC, Sun P (2007) Constr Build Mater 21:21110.1016/j.conbuildmat.2005.06.052 ↗
13. Pinto AT, Vieira E (2005) Geopolymer 2005 world congress, Saint-Quentin, France, pp 173–176
14. Davidovits J (2008) Geopolymer chemistry & applications, Chap. 4, 2nd edn. Institute Géopolymère, Saint-Quentin, p 61
15. Davidovits J (1999) Geopolymer ‘99 2nd international conference, Saint-Quentin, France, pp 9–39
16. Warren BE, Biscoe L (1938) J Am Ceram Soc 21(2):4910.1111/j.1151-2916.1938.tb15742.x ↗
17. Warren BE, Loring AD (1935) J Am Ceram Soc 18(1–12):26910.1111/j.1151-2916.1935.tb19394.x ↗
18. Hadke M, Mozgawa W (1993) Vib Spectrosc 5:7510.1016/0924-2031(93)87057-Z ↗
19. Komnitsas K, Zaharaki D, Perdikatsis V (2009) J Hazard Mater 161:76010.1016/j.jhazmat.2008.04.055 ↗
20. Clayden NJ, Esposito S, Aronne A, Pernice P (1999) J Non-Cryst Solids 258:1110.1016/S0022-3093(99)00555-4 ↗
21. Lecomte I, Henrist C, Liegeois M, Maseri F, Rulmont A, Cloots R (2006) J Eur Ceram Soc 26:378910.1016/j.jeurceramsoc.2005.12.021 ↗
22. Mozgawa W (2001) J Mol Struct 596:12910.1016/S0022-2860(01)00741-4 ↗
23. Florke OW et al (2008) Silica, Ullmann’s encyclopedia of industrial chemistry. Wiley-VCH Verlag GmbH & Co, Weinheim
24. Iler RK (1979) The chemistry of silica. Wiley, New York
25. Morrow BA, McFarlan AJ (1991) Langmuir 7:169510.1021/la00056a022 ↗
26. Burneau A, Barres O, Gallas JP, Lavalley JC (1990) Langmuir 6:136410.1021/la00098a008 ↗
27. Ranea AV, Carmichael I, Schneider FW (2009) J Phys Chem C 113:214910.1021/jp8069892 ↗
28. Williams Q (1995) In: Ahrens TJ (ed) Mineral physics and crystallography: a handbook of physical constants. American Geophysical Union, Washington
29. Frost LR, Dickfos JM (2008) Spectrochim Acta A 71:14310.1016/j.saa.2007.11.021 ↗
30. Avdeeva IT, Vorsina AI (1969) Ser Khim 10:2197
31. Durie AR, Milne WJ (1967) Spectrochim Acta A 23:288510.1016/0584-8539(67)80185-5 ↗
32. Kerkhof JN, White LJ, Hem LS (1977) J Pharm Sci 66:153310.1002/jps.2600661107 ↗