鋼筋混凝土梁構件之鋼筋腐蝕區域補修工法研究

鋼筋混凝土建築物常見地劣化狀況之一為內部鋼筋鏽蝕造成混凝土裂縫或剝落，此時便需依劣化程度進行修復、補強或拆除重建。可據現地調查及使用者反應，修復區大多未滿一年即發生新舊材料分離或剝落，此可能係由於修復材黏結力不足或介面處理不確實。為此，本研究對常見斷面修復材進行力學性能試驗、新舊介面處理及鋼筋腐蝕梁構件之修復性進行探討。依結果得到以下結論：本研究選擇之修復材性能大多符合品質基準；確實進行介面處理可顯著提升黏結強度；在實尺寸梁修復方面，水泥砂漿與鋼筋握裹能力較佳，能有效維持及提升梁構件之撓曲能力。

關鍵字

鋼筋混凝土；腐蝕構件；腐蝕區域修復；補修材料

並列摘要

Reinforced concrete buildings have been exposed to humid environments for a long time. Over the years, most of the components have deteriorated or aged. Even reaching the critical stage of safety concerns. However, in the current seismic evaluation methods of building structures, there is still a lack of quantitative diagnosis of durability and it is impossible to evaluate the impact of material degradation on the seismic performance of structures. Therefore, it is necessary for architects, civil engineers, and structural engineers to plan reinforcement or restoration projects by implementing this plan and integrating relevant literature suggestions to construct practical suggestions for repairing steel corrosion sections. The purpose of this research is to use experiments related to repair materials and repair methods to propose appropriate restoration projects.