Ceramics-Silikáty 53, (1) 42 - 47 (2009) |
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THE EFFECT OF ADDITIVES ON THE PROPERTIES OF HIGH ALUMINA LOW-CEMENT SELF-FLOWING CASTABLES
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Otroj Sasan 1, Nilforoushan Mohammad Reza 1, Marzban Reza 2
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1 Department of Engineering., University of Shahrekord, Shahrekord, Iran
2 Gadr (Niru) Refractories Co., Tehran, Iran
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Keywords: Additive, Deflocculant, Self-flow, Low-cement castable, Microstructure
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In this paper, the effect of additives such as deflocculants and dispersants; on the properties of alumina low-cement selfflowing
castables has been investigated. The flow and setting behavior, major physical and mechanical properties of these
castables have been tested. Also, the microstructures of these castables have been evaluated. The results show that the proper
choice of deflocculants such as; polycarboxylateether is essential for the development of these castables and improvement of
their microstructure and properties. The optimum content of this deflocculant is considered to be 0.06 wt.%. |
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