High Alumina Self-flow Castables with Different Binders

Akash Satpathy, Ritwik Sarkar

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

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