Fire Tests for the Dutch CUR Committee C120

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Fire Testsfor the Dutch CUR Committee C120
PG 2.2 Performance of SCC in fire, 16 june 2003
Henk Vanwalleghem
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For the production of SCC use of fine filler
material - silica fume - fly ash -
limestone fillerreduced permeability
spalling could be expected
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On demand of the Dutch CUR commitee C120Fire
resistance of Structural Concretefire tests on
plain SCC cylinders
- first test series B35 B65- second test
series B85 B105
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- unloaded SCC cylinders- ISO fire- parameters

• compressive strength B35, B65, B85, B105
  filler type coarse aggregate type sealed
  unsealed (first test series)

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Tabel
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Results of the first test series
SCC B65 (fly ash) after fire test
SCC B65 (limestone filler) after fire test
sealed unsealed
sealed unsealed
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• unsealed test specimens no spalling
• sealed test specimens showed some spalling
• degree of spalling depends on
• - moisture content
• the greater the moisture content,
• the higher the spalling risk
• - type of filler material
• fly ash higher degree of spalling
• limestone filler lowest degree of spalling

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Results of the second test series (only
unsealed test specimens)
no spalling could be noticed only one cylinder
showed severe spalling probably caused by the 3D
heat attack due to the absence of insulation
material
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Results of the second test series
SCC B105 (limestone filler)
before fire test after fire test