| 姓名 | 黃貞治(Chen-Chih Huang) | 電子郵件信箱 | E-mail 資料不公開 | |
| 畢業系所 | 營建工程系碩士班(Department and Graduate Institute of Constrction Engineering) | |||
| 畢業學位 | 碩士(Master) | 畢業時期 | 94學年第2學期 | |
| 論文名稱(中) | 無電鍍鎳熱處理鋼筋應用於海域混凝土腐蝕行為之初步研究 | |||
| 論文名稱(英) | Preliminary Study of Corrosion-related Behaviors of Marine Concrete Using Heat Treated of Electroless Nickel-Plated Steel | |||
| 檔案 |
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論文使用權限 | 校內外均一年後公開 | |
| 論文語文/頁數 | 中文/159 | |||
| 摘要(中) | 無電鍍鎳係化學鍍方法之一種，其鍍膜厚度極薄且其表面硬度高、耐磨、耐蝕性佳，同時兼具焊接性良好等特質，可能適合應用於營建產業鋼筋表面之防蝕處理，而目前仍缺乏相關之研究，在提升材料品質增加實質經濟效益方面，值得深入加以探討。 本研究以一般營建用鋼筋為底材，表面施以無電鍍鎳鍍層被覆形成防蝕鍍層，取代傳統一般鋼筋，製作三種不同細骨材含量（含海砂、部分海砂及河砂）之鋼筋混凝土試體，以海水潮間帶之養生池長時間浸泡，同時另一批試體置於台中港區自然環境中，測試不同齡期下混凝土試體處於高氯離子及濱海惡劣環境下鋼筋混凝土之腐蝕行為，另以凍融循環加速試驗測試試體之抗凍融環境能力。 試驗結果在防蝕性能方面，由鋼筋拉拔試驗後之鋼筋巨觀檢視中可知，在混凝土的保護下，無電鍍鎳鋼筋具有良好之防蝕性能。在鋼筋握裹力測試方面，無電鍍鎳鋼筋與一般鋼筋之握裹強度差異並不大，顯示鋼筋握裹強度未受鍍膜厚度及其性質之影響。另由鋼筋表面腐蝕面積與握裹強度間之關係得知，鋼筋表面腐蝕面積達到20﹪∼30﹪時，其握裹力可能受腐蝕面積之增減而影響其強度。 | |||
| 摘要(英) | Electroless
Nickel-Plated has been known as one of the chemical electroplates. It’s
featured by producing the thin film with remarkable surface hardness,
wear resistance, corrosion resistance as well as good adhesion which
make it a promising method of surface coating on steel used for
construction. However, the studies for this Electroless Nickel-Plated is
still very limited and not yet widely explored. Accordingly, to further
improve the process as to increase the economic benefits of its
applications will be remained a critical subject to get studied. In this paper, we used Electroless Nickel-Plated steel to replace the conventional steel and embedded in three kinds of reinforced concrete specimens (ie: 100% sea sand; partial sea sand and 100% river sand) and immersed in the pool emulated for the environment of sea shore curing pond for long time. At the same time, we put another set of concrete specimens outdoor inside Tai-Chung Harbor as to test the corrosion resistance under rich chorine environment near by the sea shore. Besides, we also performed the freeze-thaw cycling test in order to test the specimen’s capability of resisting the freeze-thaw conditions. The steel bond stress test showed the excellent corrosion resistance for Electroless Nickel-Plated steel embedded in concrete specimen. And the other steel bond stress test revealed Electroless Nickel-Plated steel has similar performance with the conventional one which means the electroplating has no significant impact on steel bond stress. By the way, based on the correlation in between surface corrosive area and bond strength, it shows the bond strength will be significantly impacted when the steel’s surface corrosive area up to 20% to 30%. | |||
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