Transient thermal effect of FRC incorporated PECC under high temperature

Abstract

In this paper thermal behavior of Partially Encased Composite column (PECC) made of Fiber Reinforced Concrete (FRC) has been carried out. Steel wool (SW) and carbon fiber (CF) were used to make fiber reinforced concrete (FRC) specimens. The fiber proportion was varied from 0 to 1%. From the Compressive strength test it was observed that FRC with 0.5%CF-0.5%SW has more strength, to be the best proportion among the tested specimens. Transient thermal analysis of PECC made of FRC was carried out by ANSYS 17.2 The temperature range was considered from 400ºC to 800ºC with a time frame of 30 to 120 minutes, for the time interval of 30 minutes as per ISO 834.From the analysis it was observed that temperature at the core of fibre incorporated PECC was found to be very less i.e. 11ºC to 26 ºC compared to surface temperature of 400 ºC to 800 ºC and slows down the heat transfer from surface to core, made the column for high temperature application.