High Alumina Self-flow Castables with Different Binders
National Institute of Technology, Department of Ceramic Engineering, 769008 Rourkela/India
Revision 14.06.2011, 31.08.2011
Volume 4, Issue 4, Pages 98 - 102
Abstract
The effect of binders and their amount on high alumina self-flow castables has been studied. Self-flow castables have been prepared by fixing the distribution coefficient q at 0,21, in the continuous particle size distribution model, as proposed by Dinger-Funk. High alumina cement and silica sol were used at 4 and 6 mass-% as binder and water was added during mixing till self-flowing consistency was achieved in the castable mix. The cast castable cubes were dried and heat-treated at 950 °C and 1550 °C. All the dried and heat-treated samples were characterized for bulk density, volume shrinkage, cold crushing strength and phase analysis by XRD.
Keywords
self-flow castable, silica sol, high alumina cement
References
[1] Lee, W.E.; et al.: Castable refractory concrete. Int. Mater. Rev. 46 (2001) [3] 145–167
[2] Banerjee S.: Recent developments in monolithic refractories. Am. Ceram. Soc. Bull. 77 (1998)
[10] 59–63
[3] Masaryk, J.S.: Development and use of low cement self flow castables, in: Proc. UNITECR, São Paulo, Brazil, 1993, 527–538
[4] Bhattachariya, K.; et al.: Ultra low cement castables – a new generation of trough bodies for increased cast house life. Interceram 47 (1998)
[4] 249–251
[5] Studart, A.R.; et al.: Processing of zero cement self-flow high alumina refractory castables by matrix rheological control. Am. Ceram. Soc. Bull. 77 (1998) [12] 60–66
[6] Banerjee, S.: Monolithic refractories – a comprehensive handbook. Singapore 1998, 311
[7] Iler, R.K.: The Chemistry of silica: Solubility, polymerization, colloid and surface properties, and biochemistry. New York 1979, 866
[8] Das, S.K.; et al.: No cement high alumina self flow castable. Am. Ceram. Soc. Bull. 82 (2003)
[2] 55–59
[9] Mukhopadhyay, T.K.; et al.: Effect of synthetic mullite aggregate prepared by hydroxyl-hydro gel method on sol bonded clay based mullite castable. Am. Ceram. Soc. Bull. 84 (2005) [11] 9101–9106 (www.ceramicbulletin.org)
[10] Sarkar, R.; Mukherjee, S.; Ghosh, A.: Gel bonded Al2O3-SiC-C based blast furnace trough castable. Am. Ceram. Soc. Bull. 85 (2006) [5] 9101–9105 (www.ceramicbulletin.org)
[11] Dinger, D.R.; Funk, J.E.: Particle packing III – discrete versus continuous particle sizes. Interceram 41 (1992) [5] 332–334
[12] Myhre, B.; Hundere, A.S.: The use of particle size distribution in development of refractory castables. Presented at the XXV ALAFAR Congress, San Carlos De Bariloche, Argentina, Dec 1–4 1996
Copyright
Göller Verlag GmbH
