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OTO 2001/074

Deterioration and spalling of high strength concrete under fire

When concrete is exposed to fire, the build-up of internal water pressure under steep temperature gradients generates high local stresses, which may cause spalling, potentially explosively. The performance of high strength concrete, particularly in the high humidity of the offshore environment where there is the potential for hydrocarbon fires, has not been researched. The objectives of the present study were therefore to investigate the factors influencing deterioration and explosive spalling of high strength concrete beams and to examine measures to prevent brittle and violent failure.

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Updated 2010-03-19