HIGH-STRENGTH SPUN CONCRETE COLUMN USING HEAT-PROOF FIBER FOR THE PREVENTION OF SPALLING AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to a high-strength centrifugal casting concrete column structure using heatproof fiber for preventing spalling and a manufacturing method thereof, and, more specifically, to a high-strength centrifugal casting concrete column structure using heatproof fiber for preventing spalling and a manufacturing method thereof which are to mix high-strength concrete for preventing spalling and to restrain the temperature of reinforcing bars inside the concrete from rising, wherein the high-strength concrete for preventing spalling is applied with heatproof fiber which is not melted even during autoclave curing used to reduce the manufacturing time of a high-strength centrifugal casting concrete column. The high-strength centrifugal casting concrete column according to the present invention has the heatproof fiber (2) mixed therein, wherein the heatproof fiber (2) not melted in high-temperature steam curing performed during centrifugal casting is melt in case of fire, so that a path for discharging moisture is formed, and, as a result, the spalling can be effectively prevented by effectively discharging the moisture, which is generated from evaporated moisture inside the column (1), to the outside.