Effect Of Fibers On M30 Grade Concrete Exposed To Temperatures Up To 700 OC

Authors

  • M.K.S.S.KrishnaChaitanya, K.Srinivasa Rao

Abstract

Present study was carried out to know the effect of steel fibers (volume fraction of 1%) and polypropylene fibers (volume fraction of 0.15%) on M30 grade concrete exposed to different temperatures (27, 100, 200, 300, 400, 500, 600 and 700 oC) sustained for a heating period of     1 and 3 hours. Experimental tests were carried out to obtain the mechanical properties such as compressive strength, tensile strength and flexural strength. The obtained data was analyzed and compared with data of control concrete (0% fiber). The results show that steel fiber reinforced concrete (SFRC) and Polypropylene fiber reinforced concrete (PPFRC) perform better in compressive strength, spilt tensile strength and flexural strength when compared to control concrete. The strengths obtained for 1 h duration are greater than those for 3 h exposure duration for all specimens. It is further observed that SFRC exhibits better strength than PPFRC.

Published

2020-11-01

Issue

Section

Articles