A Simple Method to Evaluate the Depth of Concrete Degradation by Fire
Source abstract
Abstract
A method was developed to estimate the depth of concrete degradation caused by a fire using the rebound number measured with a compact Equotip hardness tester. The method was experimentally verified by measuring a core taken from a concrete specimen heated according to the RABT curve to confirm the distribution of the rebound number from the heating surface. The results were then compared with the distribution of the residual compressive strength estimated from the heated temperature of the concrete specimen and further measured with a core taken from the specimen. This confirmed that the distribution of the damage depth of concrete can be simply estimated by measuring the rebound number of test pieces obtained by cutting a core sample in half. The distribution of the damage depth coincides with the distribution of the measured compressive strength and the residual compressive strength estimated from the temperature data obtained in the fire resistance test.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fire effects on concrete materials · Fire dynamics and safety research · Concrete Properties and Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Construction System and Materials Department, Technical Research Institute, Obayashi Corporation, Kiyose, Japan.
Shield Engineering Department, Civil Engineering Technology Division, Obayashi Corporation, Tokyo, Japan.
Department of Civil and Environmental Engineering, Graduate School of Engineering, Hiroshima University, Higashihiroshima, Japan.
References (46)
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