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Mechanical characteristics of self-compacting concretes with different filler materials, exposed to elevated temperatures

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Abstract

In this paper, the studies concern the influence that different fillers have on the properties of SCC of different strength classes when exposed to high temperatures. A total of six different SCC and two conventional concrete mixtures were produced. The specimens produced are placed at the age of 180 days in an electrical furnace which is capable of reaching 300°C at half an hour and 600°C at 70 min. The maximum temperature is maintained for an hour. Then the specimens are let to cool down in the furnace. The hardened properties measured after fire exposures are the compressive strength, splitting tensile strength, water capillary absorption and the ultrasonic pulse velocity. Explosive spalling occurred in most cases when specimens of higher strength class are exposed to high temperatures. The spalling tendency is increased for specimens of higher strength class C30/37 irrespective of the mixture type (SCC or NC) and the type of filler used.

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Acknowledgments

This paper is part of the 03ED375 research project, implemented within the framework of the ‘Reinforcement Programme of Human Research Manpower (PENED)’ and co-financed by National and Community Funds (75% from E.U.-European Social Fund and 25% from the Greek Ministry of Development-General Secretariat of Research and Technology).

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Authors and Affiliations

  1. Laboratory of Building Materials, Democritus University of Thrace, P.O. Box 252, Xanthi, 67100, Greece

    N. Anagnostopoulos, K. K. Sideris & A. Georgiadis

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  1. N. Anagnostopoulos
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  2. K. K. Sideris
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  3. A. Georgiadis
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Correspondence to K. K. Sideris.

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Anagnostopoulos, N., Sideris, K.K. & Georgiadis, A. Mechanical characteristics of self-compacting concretes with different filler materials, exposed to elevated temperatures. Mater Struct 42, 1393–1405 (2009). https://doi.org/10.1617/s11527-008-9459-6

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  • DOI: https://doi.org/10.1617/s11527-008-9459-6

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