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Thermal properties of high strength concrete at elevated temperatures
The thermal conductivity of siliceous aggregate high strenght concrete (HSC) is generally higher than that of carbonate aggregate HSC. The effect of steel fibre-reinforcement on the thermal conductivity of HSC is very small. The type of aggregate has significant influence on the specific heat of HSC at elevated temperatures. Generally, the carbonate aggregate concrete has higher specific heat in the 600 C deg to 850 deg C range. The influence of steel-fibre reinforcement on the specific heat of the concrete is very small in the temperature range investigated. The thermal expansion of siliceous aggregate HSC is higher than that of carbonate aggregate concrete in the 20 deg C to 800 deg C temperature range. The thermal expansion of HSC is not significantly affected by the presence of steel-fibre reinforcement at temperatures up to approximately 800 deg C. The type of aggregate has significant influence on the mass loss of HSC, with carbonate aggregate having much higher mass loss, up to 30 %, at temperatures of above 600 deg C. The mass loss of HSC is not significantly affected by the presence of steel-fibre reinforcement.
Thermal properties of high strength concrete at elevated temperatures
The thermal conductivity of siliceous aggregate high strenght concrete (HSC) is generally higher than that of carbonate aggregate HSC. The effect of steel fibre-reinforcement on the thermal conductivity of HSC is very small. The type of aggregate has significant influence on the specific heat of HSC at elevated temperatures. Generally, the carbonate aggregate concrete has higher specific heat in the 600 C deg to 850 deg C range. The influence of steel-fibre reinforcement on the specific heat of the concrete is very small in the temperature range investigated. The thermal expansion of siliceous aggregate HSC is higher than that of carbonate aggregate concrete in the 20 deg C to 800 deg C temperature range. The thermal expansion of HSC is not significantly affected by the presence of steel-fibre reinforcement at temperatures up to approximately 800 deg C. The type of aggregate has significant influence on the mass loss of HSC, with carbonate aggregate having much higher mass loss, up to 30 %, at temperatures of above 600 deg C. The mass loss of HSC is not significantly affected by the presence of steel-fibre reinforcement.
Thermal properties of high strength concrete at elevated temperatures
Kodur, V.K.R. (author) / Sultan, M. (author)
1998
14 Seiten, 8 Bilder, 16 Quellen
Conference paper
English
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