Influence of Sustained Elevated Temperature on Characteristic Properties of Ternary Blended Steel Fibre Reinforced Concrete

Deepa A Sinha; Dr. A.K.Verma; Dr. K.B. Prakash

Volume : IV, Issue : VIII, August - 2014

Influence of Sustained Elevated Temperature on Characteristic Properties of Ternary Blended Steel Fibre Reinforced Concrete

Deepa A Sinha, Dr. A. K. Verma, Dr. K. B. Prakash

Abstract :

Main objective of this experimental investigation is to study the behaviour of M30 ternary blended steel fie reinforced concrete when subjected to different sustained elevated temperature such as 200oC, 400oC, 600oC, 800oC and 1000oC for 3 hours. 30% of cement is replaced by ternary blend combinations such as (FA+SF), (FA+GGBFS) and (FA+MK). The proportions of (FA+SF) or (FA+GGBFS) or (FA+MK) are (0+0), (30+0), (25+5), (20+10), (15+15), (10+20), (5+25) and (0+30). The residual strength characteristics such as compressive strength and tensile strength are studied. It has been found that the TBSFRC containing (FA+GGBFS) and (FA+MK) offer higher resistance to sustained elevated temperatures upto 600oC and 800oC, where as the blend containing (FA+SF) offers resistance only upto 400oC.