無機聚合材料於鋼筋混凝土底版仰面修補之研究

10.6653/MoCICHE.202004_47(2).0004

李有豐；郝國偉；鄭大偉；陳彥鈞；黃志弘

土木水利

47卷2期（2020 / 04 / 01）

13 - 20

繁體中文

本文提出無機聚合材料（geopolymer）作為修復材料應用於鋼筋混凝土底版仰面修復補強。共製作二種不同型式之鋼筋混凝土版構材，分別為未有任何凹槽之標準版（Benchmark RC deck）與具有矩形凹槽版。採用無機聚合材料與環氧樹脂修補材料於鋼筋混凝土底版凹槽處進行修補。實驗參考ASTM D6272進行四點抗彎試驗；另外進行不同載重下之反覆加載四點抗彎試驗。從四點抗彎試驗結果可得知無機聚合材料修補之試體，較環氧樹脂修補之試體有較高抗彎強度。另外從四點抗彎反覆載重試驗可得知，使用無機聚合修補材之試體以0.9倍極限載重之反覆載重下能承受51次以上反覆載重；而環氧樹脂修補材僅能承受2次，可得知使用無機聚合修補材，除擁有較高之承載能力外，也具有良好承受反覆載重能力。

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