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Fire Tests on Hollowcore Floors


Positive hollowcore floor behaviour under fire conditions

 


As with all concrete structural systems, prestressed hollowcore floor plates have a good inherent fire resistance which has been shown from the behaviour of actual buildings following real fires. However, concern has previously been raised about the fire performance of hollowcore floors based on some examples of premature shear failure of individual units in standard (small-scale) fire resistance tests. Due to the fact that the poor performance witnessed in some small-scale standard fire tests does not correspond to observations from real fires in actual buildings, it has been argued that the cause of premature collapse is a consequence of the unrealistic small-scale and boundary condi - tions related to the standard test.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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