建議

立即可行建議 –再養護對聚丙烯纖維自充填混凝土強度恢復之研究 主辦機關：內政部建築研究所

協辦機關：

一般火災的溫度對混凝土內部的影響，通常不會達到本研究所設定之 400℃、600℃及 800℃等高溫，因為尋常的火災可在短時間內被撲滅，此時 高溫火害對混凝土的傷害會只侷限在其表面，高溫尚未進入到混凝土內 部，若能經適當養護，理論上可使混凝土恢復部分或大部分的強度，尤其 聚丙烯纖維的融點大概在 1 百多度，如果火害的溫度未達到纖維的融點，

聚丙烯纖維對自充填混凝土的影響應該還是存在，但其影響的程度為何，

例如混凝土表面層的纖維可能已融解，但內部的纖維尚未融解，此時自充 填混凝土的力學行為值得進一步探討，若能釐清此狀態的力學行為，將有 助於自充填混凝土火害後修復設計的參考。

附錄

附錄二、期中審查會議紀錄

附錄

附錄 壓強度≧420kgf/cm2 者)，可考慮用磨平 方式代替石膏蓋平。

豪吉  試體昇溫及降溫曲線，並與試體中心溫

參考書目

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