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A platform for research: civil engineering, architecture and urbanism
Residual compressive strength of fire exposed fibre reinforced concrete
In case of high strength concrete the strength reduction during and after fire is different from normal weight concrete. The cracking of the concrete surface and the compressive strength of concrete as well as polypropylene and steel fibre reinforced concrete after high temperature loads up to 800 deg C were tested. The experimental strength range of concrete was 60 N/mm2 to 90 N/mm2. Two different concrete mixes without fibres and three different mixes with fibres were tested. Generally a strength decrease with increasing temperature can be observed, with additional effects from the pore water evaporation and the transformation of quartz from the additives. The test results indicated that the advantageous influence of polymeric fibres in concrete subjected to high temperatures is available mainly for small fibers and not for large fibres.
Residual compressive strength of fire exposed fibre reinforced concrete
In case of high strength concrete the strength reduction during and after fire is different from normal weight concrete. The cracking of the concrete surface and the compressive strength of concrete as well as polypropylene and steel fibre reinforced concrete after high temperature loads up to 800 deg C were tested. The experimental strength range of concrete was 60 N/mm2 to 90 N/mm2. Two different concrete mixes without fibres and three different mixes with fibres were tested. Generally a strength decrease with increasing temperature can be observed, with additional effects from the pore water evaporation and the transformation of quartz from the additives. The test results indicated that the advantageous influence of polymeric fibres in concrete subjected to high temperatures is available mainly for small fibers and not for large fibres.
Residual compressive strength of fire exposed fibre reinforced concrete
Restdruckfestigkeit von faserverstärktem Beton nach einem Brand
Balazs, György (author) / Lubloy, Eva (author)
2008
6 Seiten, 16 Bilder, 1 Tabelle, 10 Quellen
Conference paper
English
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