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The ability of high performance concrete to resist high temperature

Hassan A.M. Mhamoud (Northeast Forestry University (NEFU), Harbin, China)
Jia Yanmin (Northeast Forestry University (NEFU), Harbin, China)

Journal of Structural Fire Engineering

ISSN: 2040-2317

Article publication date: 14 August 2017

Issue publication date: 22 September 2017

172

Abstract

Purpose

This study aims to focus on the resistance to elevated temperatures of up to 700ºC of high-performance concrete (HPC) compared to ordinary Portland concrete (OPC) with regards to mass loss and residual compressive and flexural strength.

Design/methodology/approach

Two mixtures were developed to test. The first mixture, OPC, was used as the control, and the second mixture was HPC. After 28 days under water (per Chinese standard), the samples were tested for compressive strength and residual strength.

Findings

The test results showed that at elevated temperatures of up to 500ºC, each mixture experienced mass loss. Below this temperature, the strength and the mass loss did not differ greatly.

Originality/value

When adding a 10 per cent silica fume, 25 per cent fly, 25 per cent slag to HPC, the compressive strength increased by 17 per cent and enhanced the residual compressive strength. A sharp decrease was observed in the residual flexural strength of HPC when compared to OPC after exposure to temperatures of 700ºC.

Keywords

Acknowledgements

Conflict of interest: The current research project was sponsored and fully funded by The Northeast Forestry University College of Civil Engineering.

Citation

A.M. Mhamoud, H. and Yanmin, J. (2017), "The ability of high performance concrete to resist high temperature", Journal of Structural Fire Engineering, Vol. 8 No. 4, pp. 392-401. https://doi.org/10.1108/JSFE-06-2016-0008

Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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