FIRE SPALLING OF CONRETE-A RE-ASSESSMENT OF TEST DATA

摘要

In a state-of-the-art report on the fire design of concrete structures by fib (2007), the randomness of fire spalling testing is described as substantial.No more reference was given to the test method that was used or the spalling depths that were measured during the experiments.As the variation in results during fire resistance testing can have a crucial influence on the fire rating this question deserves more attention.A medium scale test method previously used at SP Technical Research Institute of Sweden is analysed in an effort to shed some more light on this issue.The random factor from analysing 110 fire tests with this method are shown to not be substantial.