Author(s): Shrikant S Ingale and Vivek T Babar

Abstract: As concrete having low thermal diffusivity property, increase in temperature slows down during fire situation. Results concrete structure performs well in such situation, but if concrete exposed to high temperature its strength and stiffness is decreases. So the knowledge of residual strength in concrete member required to decide, whether the fire affected structure should be demolished or repaired. The residual strength in concrete member is find out through NDT testing for that various instrument such as rebound hammer, ultrasonic pulse velocity, core cutter etc. are used. The aim of this study is to understand methodology, factor affecting on testing, interpretation of results, conclusion, remedial on fire affected concrete members are done through NDT testing of RCC structures. To fulfill the aim we study the report of NDT testing by rebound hammer of fire affected RCC OM cold storage, Kupwad MIDC.

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