Steel fiber reinforced concrete subjected to elevated cyclic temperatures

Abstract EN

The results from a - series of testson; steel fiber reinforced concrete at elevated cyehc temperature are presented.

Hie residual compressive strength: md ultimate splitting izmte strength were measured on specimens with no libers md with 0.5% and 1% plain steel &hers over a temperature range of 300*700' C Concrete was sufcjectedto one, two orthree cycles of heating and cooling.

In general tkeexposureto high temperature decreased the strength of concrete* although thewnber of J^tmgcycfes seems only to have a secondary efiect The results also show that the steel fiber reinforced concrete performs better than pfam concrete.

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Two equations were suggested to predict the strength of concrete and the results show good agreement with the experimental values