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

被引：0
|
作者：
Yu. E. Pivinskii
K. V. Timoshenko
机构：
[1] Belgorod State Technological Academy of Building Materials,
来源：
Refractories and Industrial Ceramics | 1999年 / 40卷
关键词：
Quartz Sand; Molding System; Binding System; Ultimate Compressive Strength; Refractory Concrete;
D O I：
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学科分类号：
摘要：
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.
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页码：495 / 498
页数：3
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