Cast (self-flow) ceramic castables. 2. Effect of structurizing additives of high-alumina cement on the properties of silica ceramic castables

Cast (self-flow) ceramic castables. 2. Effect of structurizing additives of high-alumina cement... HCBS of quartz sand modified by additives of high-alumina cement (HAC) and polydisperse silica fillers are used to obtain self-flow cast ceramic castables with a porosity of 16–18% and an ultimate compressive strength of 20–50 MPa after a heat treatment at 1000‡C and 60–110 MPa after a heat treatment at 1300°C. A low additive of HAC (0.35–0.45%) accelerates the process of hardening and causes a certain (by 1–2%) increase in the porosity as compared with ceramic castables without such an additive. An increase in the HAC content to 1–3% causes a marked increase in the porosity and a decrease in the strength of the castable. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Cast (self-flow) ceramic castables. 2. Effect of structurizing additives of high-alumina cement on the properties of silica ceramic castables

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Publisher
Springer US
Copyright
Copyright © 2000 by Kluwer Academic/Plenum Publishers
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02762626
Publisher site
See Article on Publisher Site

Abstract

HCBS of quartz sand modified by additives of high-alumina cement (HAC) and polydisperse silica fillers are used to obtain self-flow cast ceramic castables with a porosity of 16–18% and an ultimate compressive strength of 20–50 MPa after a heat treatment at 1000‡C and 60–110 MPa after a heat treatment at 1300°C. A low additive of HAC (0.35–0.45%) accelerates the process of hardening and causes a certain (by 1–2%) increase in the porosity as compared with ceramic castables without such an additive. An increase in the HAC content to 1–3% causes a marked increase in the porosity and a decrease in the strength of the castable.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 21, 2007

References

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