臺灣博碩士論文加值系統

漆封鋼筋具有良好之抗腐蝕性，是一經濟、簡便、有效之防蝕對策，唯其握裹效能有隨漆封層厚度增加而下降之弊。因此提升塗封技術，成為解決此一缺失之重要課題。
本研究主要探討不同型式之塗封技術，對塗封鋼筋與混凝土界面握裹性質之影響，並檢測該塗封層之防蝕效能。本研究中所開發的改善塗封技術包括環氧樹酯摻砂漆封、環氧樹酯沾砂再漆封等二種，並探討影響參數(砂膠比、砂粒徑、置入物)對改善握裹性質之效能。實驗中，主要以單筋拉拔試驗法評估各種不同塗封型式鋼筋之握裹強度。另藉由理論計算，找出描述鋼筋與混凝土界面間握裹特性之四個材料參數，以進一步瞭解其界面握裹性質。
研究結果顯示，以環氧樹酯摻砂漆封技術，其握裹強度隨著砂膠比的提高而回昇，此外本研究所採用之二種塗封技術均能提高漆封鋼筋之握裹強度。由理論計算所求得之四個界面參數顯示出單位長度剪勁度、單位長度臨界剪力及表面能均隨著砂膠比的提高而有上升之趨勢。各種漆封方式其抗腐蝕性質方面，經實驗驗證皆有良好之防蝕效能。

Epoxy-coated rebar is an efficient and economic corrosion prevention method but suffers from the bond degradation effect. It is important for engineers to develop a coating method to prevent bond degradation and preserve the ability of corrosion prevention.
In this study, the bond behavior for various coating techniques is investigated and the ability of corrosion prevention is also examined .Two new coating techniques, admixture-epoxy coating and sandwich type epoxy coating, are developed. Three parameters including admixture/epoxy weight percentage, size of admixture and various admixtures are found to influence the bond efficiency. Single-rebar pullout tests are performed to evaluate the bond behavior, and Stang’s theorem are used to find the four parameters describing the interface properties.
Experiment results show that the bond strength of sandwich type epoxy coating specimen increases as the sand/epoxy weight percentage increases. Further, both admixture-epoxy coating and sandwich type epoxy coating techniques improve the bond strength. Also, the shear stiffness/length(K), critical shear stress/length(q) and surface energy (G) all increase as the sand/epoxy weight percentage increases. All coating methods show good efficiency on corrosion prevention.

中文摘要 i
英文摘要 ii
目錄 iii
圖目錄 vi
表目錄 ix
第一章 緒論
1-1 前言－－－－－－－－－－－－－－－－－－－－－－－－－1
1-2 研究動機與目的－－－－－－－－－－－－－－－－－－－－3
1-3 研究範圍與方法－－－－－－－－－－－－－－－－－－－－4
第二章 文獻回顧
2-1 前言－－－－－－－－－－－－－－－－－－－－－－－－－6
2-2 鋼筋混凝土握裹行為－－－－－－－－－－－－－－－－－－6
2-2-1 握裹力簡述－－－－－－－－－－－－－－－－－－－－－6
2-2-2 握裹力影響因素及破壞模式－－－－－－－－－－－－－－7
2-2-3 拉拔試驗分析法－－－－－－－－－－－－－－－－－－－12
2-3 鋼筋混凝土腐蝕機理－－－－－－－－－－－－－－－－－－14
2-3-1 混凝土中鋼筋的腐蝕機理－－－－－－－－－－－－－－－14
2-3-2 鋼筋腐蝕速率量測－－－－－－－－－－－－－－－－－－18
2-4 鋼筋漆封環氧樹酯的應用－－－－－－－－－－－－－－－－21
2-4-1 鋼筋漆封環氧樹酯的握裹力問題－－－－－－－－－－－－21
2-4-2 漆封環氧樹酯鋼筋之塗封損傷及防蝕性－－－－－－－－－23
2-4-3 漆封鋼筋之發展長度修正係數－－－－－－－－－－－－－25
第三章 理論基礎
3-1 複合材料界面性質之理論模式－－－－－－－－－－－－－－27
3-1-1 前言－－－－－－－－－－－－－－－－－－－－－－－－27
3-1-2 理論模式－－－－－－－－－－－－－－－－－－－－－－27
3-1-3 實驗分析法－－－－－－－－－－－－－－－－－－－－－38
第四章 實驗計劃
4-1 試驗變數－－－－－－－－－－－－－－－－－－－－－－－41
4-2 試驗材料－－－－－－－－－－－－－－－－－－－－－－－44
4-3 試驗設備－－－－－－－－－－－－－－－－－－－－－－－52
4-4 試體製作與配比－－－－－－－－－－－－－－－－－－－－59
4-5 試驗方法－－－－－－－－－－－－－－－－－－－－－－－62
4-5-1 混凝土試驗－－－－－－－－－－－－－－－－－－－－－62
4-5-2 鋼筋握裹力試驗－－－－－－－－－－－－－－－－－－－64
4-5-2 腐蝕量測試驗－－－－－－－－－－－－－－－－－－－－67
第五章 結果與討論
5-1 試體破壞模式－－－－－－－－－－－－－－－－－－－－－70
5-2 混凝土的力學性質－－－－－－－－－－－－－－－－－－－73
5-3 漆封鋼筋之握裹力－－－－－－－－－－－－－－－－－－－74
5-4 漆封鋼筋對防蝕效能之探討－－－－－－－－－－－－－－－97
5-5 理論參數計算結果與討論－－－－－－－－－－－－－－－－109
第六章 結論與建議
6.1 結論－－－－－－－－－－－－－－－－－－－－－－－－－120
6.2 建議－－－－－－－－－－－－－－－－－－－－－－－－－122
參考文獻－－－－－－－－－－－－－－－－－－－－－－－－－123

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