Dispersion of Microsilica-Containing Zero-Cement High-Alumina Castables

摘要

Based on the zeta potential data obtained, citric acid can be an effective dispersant for microsilica-containing zero-cement high-alumina castables. The advantages of refractory castables regarding ease of installation and thermomechanical behavior have made the replacement of conventional brick by monolithics a natural process in refractory applications. Such advantages result from improvements in castable rheology during processing and from a significant reduction of liquid phase formation at high temperature.