JSTE_V2_N4_RP4 T. Sekar Journal on Structural Engineering 2320 - 2343 2 4 24 31 High Performance Concrete, Steel Fibres, High Performance Fibre Reinforced Cement Composites, High Temperature, Cooling Regimes, Residual Properties The work reported in this paper was carried out to study the effect of high temperature and cooling regimes on residual properties and spalling of High Performance Fibre Reinforced Cement Composites (HPFRCC). The properties studied include residual compressive strength and residual density. A total of 168 numbers of High Performance Concrete (HPC) cubes of size 100 x 100 x 100 mm were cast with and without steel fibres. The cubes were heated to different levels of elevated temperatures using an electric furnace and cooled by two different cooling systems and then finally tested for residual properties at different ages. Test results indicate that, irrespective of cooling regimes, HPC and HPFRCC cubes heated at 250°C had a higher residual strength than unheated cubes at all ages of testing. But, when they were heated at 500 and 750°C, they had a lower residual strength than unheated cubes. Cubes cooled by furnace cooling had a higher residual strength than cubes cooled by water cooling. HPC and HPFRCC cubes exposed up to 750°C had a lower residual density than unheated cubes at all ages of testing. There is a recovery of strength with time when exposed to low elevated temperature than to high elevated temperature. At 750°C, the colour of HPC and HPFRCC cubes became white and cracks were observed in HPC cubes, where as no cracks were formed on HPFRCC cubes. Incorporation of steel fibres into HPC cubes improved its fire resistance. December 2013 - February 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2755