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Thermal and Mechanical Properties of Alumina Cementitious Composite Materials
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 Title & Authors
Thermal and Mechanical Properties of Alumina Cementitious Composite Materials
Yang, In-Hwan; Lee, Jung-Hwan; Choi, Young-Cheol;
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The mechanical and thermal properties of high temperature aluminate cementitious thermal storage materials were investigated in this paper. Alumina cement was used as basic binder and the effect of the replacement of fly ash, silica fume, calcium sulfo-aluminate and graphite for alumina cement was investigated. Experiments were performed to measure mechanical properties including compressive strength before and after thermal cycling, and split tensile strength, and to measure thermal properties including thermal conductivity and specific heat. Test results show that the residual compressive strengths of mixtures with alumina cement only, or alumina cement and silica fume were greater than those of the others. Additionally, the specific heat of mixture with graphite was largest in all the mixtures used in the study. The results of this study could be used to provide realistic information for material properties in thermal energy storage concrete in the future.
Alumina cement;Thermal energy storage;Residual compressive strength;Thermal conductivity;Specific heat;
 Cited by
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