International Journal of Civil and Structural Engineering

Volume 4 Issue 3 2014          Pages: 381- 388           << Previous      Next>>

Development of mathematical model of ternary blended steel fibre reinforced concrete subjected to elevated temperature

Author Information:

Deepa A Sinha1, Verma A.K2, Prakash K.B3
1- BVM Engineering College, VallabhVidyanagar, Anand, Gujarat, India.
2- Professor and Head, Structural Engineering Dept, BVM Engineering College, Vallabh, Vidyanagar, Anand, Gujarat, India.
3- Principal, Government Engineering College, Devagiri, Haveri, Karnataka, India.

ABSTRACT
This paper an experimental investigation is described on the mechanical properties of steel fiber reinforced concrete with 30% replacement of cement by Fly ash + ground granulated blast furnace slag making it ternary blended and then subjected to elevated temperature of 2000C or 4000C or 6000C or 8000C or 10000C as the case may be for 3 hours.. From the experimental investigation it is concluded that the steel fiber reinforced ternary blended concrete subjected to such as 200oC, 400oC, 600oC, 800oC and 1000oC for 3 hours with 30% replacement of cement by FA+ GGBFS (in proportion of (10+20)) shows improved resistance to temperature. The mathematical models are developed for the strength characteristic of ternary blended steel fibre reinforced concrete when subjected to different sustained elevated temperatures. The best fit biquardratic polynomial equations are obtained for compressive strength, tensile strength, flexural strength. The equations generated will help in finding out the strength of ternary blended steel fibre reinforced concrete at any desired temperature.

Keyword: Compressive strength, tensile strength, flexural strength, biquardratic polynomial equations, ternary blended steel fibre reinforced concrete.

doi: 10.6088/ijcser.201304010037

Copyright: © 2014 by the author(s), licensee Integrated Publishing Association. This is an open-access article distributed under the terms of the Creative Commons Attribution License (3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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