Thermal and mechanical properties of steel-fibre-reinforced concrete at elevated temperatures

Abstract

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur.Canadian Journal of Civil Engineering, 23, 4, pp. 511-517, 1996-04-01 Thermal and mechanical properties of steel-fibre-reinforced concrete at elevated temperatures Lie, T. T.; Kodur, V. K. R.http://www.nrc-cnrc.gc.ca/irc T he rm a l a nd m e c ha nic a l prope rt ie s of st e e l-fibre -re inforc e d c onc re t e a t e le va t e d t e m pe ra t ure s NRCC-39025Lie, T.T.; Kodur, V.R. April 1996A version of this document is published in / Une version de ce document se trouve dans:Canadian Journal of Civil Engineering, 23, (4), pp. 511-517, April 01, 1996The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42Les renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Pour obtenir de plus amples renseignements : http://lois.justice.gc.ca/fr/showtdm/cs/C-42 , ! ,. 511Thermal and mechanical properties of steel-fibre-reinforced concrete at elevated temperatures T. T. Lie and V.K.R. KodurAbstract: For use in fire resistance calculations, the relevant thermal and mechanical properties of steel-fibre-reinforced concrete at elevated temperatures were determined. These properties included the thermal conductivity l specific heat, thermal expansion, and mass loss. as well as the strength and deformation properties of steel-fibre-reinforced siliceous and carbonate aggregate concretes. The thermal properties are presented in equations that express the values of these properties as a function of temperature in the temperature range between O°C and lOOO°C. The mechanical properties are .given in the form of stress-strain relationships for the concretes at elevated temperatures. The results indicate that the steel fibres have little influence on the thermal properties of the concretes. The influence on the mechanical properties, however, is relatively greater than the influence on the thermal properties and is expected to be beneficial to the fire resistance of structural ele...

Stress-Strain Curves for High Strength Concrete at Elevated Temperatures

“…Whereas the stress-strain curves at elevated temperatures have been established for various types of NSC, this is not the case with HSC, specifically HSC with steel fibers (Lie and Kodur 1996).…”

“…This is because the addition of steel fibers enhances the mechanical behavior of HSC at elevated temperature and significantly improves the ductility of concrete (Diederichs et al 1989;Hsu and Hsu 1994;Lie and Kodur 1996). Also, two types of commonly used aggregates, siliceous and carbonate, were considered in the tests since the type of aggregate influences the fire performance and the shape of the stress-strain curves.…”

Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete

“…All material properties used in the calculations are described in the above-mentioned references (Lie 1992;Lie and Kodur 1995a, 1996b.…”

Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete

“…To facilitate the use of the thermal and mechanical properties as input data to the calculation of the temperatures and strengths of steel-fibre-reinforced concrete constructions, formulas that give these properties as a function of temperature in the temperature range of 0-1000°C have been derived (Lie and Kodur 1996b). These formulas were used in the computer programs.…”