| Summary: | 碩士 === 國立交通大學 === 土木工程系 === 88 === The major aim of the Study is to explore the mechanical behavior difference between TAICON under high-temperature & high-pressure steam curing and TAICON of general standard group after various kinds of fire damage temperature tests.
The research result shows: the higher the high-temperature & high-pressure steam curing temperature is, the higher is the pressure resistance strength of its specimen. After a fire damage, the pressure resistance strength of all specimen decreases accordingly in accompany with the increase of fire damage temperature, among which, the strength deduction rate of the high-temperature & high-pressure steam curing temperature at 180°C is the lowest one, and the standard group is ranked next to it. The wave speed and required time for complete combustion of specimen are respectively in positive ratio and negative ratio with pressure resistance strength. The elastic module shows: concerning the one through high-temperature & high-pressure steam curing after a fire damage, its residual elastic module percentage is normally less than that through general curing.
In SEM test, it can be understood from micro observation aspect that, as the temperature of fire damage is higher, more perforated crevices tend to appear in its micro observation structure, and the hydrated product also dissolves due to fire damage to lead to the decline of strength.
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