| 研究生: |
郭金昇 Kuo, Chin-Sheng |
|---|---|
| 論文名稱: |
碳纖維複合材與磚造砌體之黏著強度研究 The Bond Strength between Carbon Fiber Reinforced Polymer (CFRP) Composites and Brick Masonry |
| 指導教授: |
黃斌
Huang, Bin |
| 學位類別: |
碩士 Master |
| 系所名稱: |
規劃與設計學院 - 建築學系 Department of Architecture |
| 論文出版年: | 2003 |
| 畢業學年度: | 91 |
| 語文別: | 中文 |
| 論文頁數: | 113 |
| 中文關鍵詞: | 碳纖維複合材 、磚造砌體 、黏著強度 |
| 外文關鍵詞: | CFRP, brick masonry, bond strength |
| 相關次數: | 點閱:93 下載:2 |
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台灣地區具有歷史性及紀念性的建築物之中有許多是屬於磚造建築物,這些建築物因為本身的韌性不佳,在長期的環境變化及外力作用,加上材料本身的劣化,若未能注意其耐震方面的能力,很容易就造成災害。因此這類歷史性建築在修復及再利用的時候,針對建築物結構體的補強是一必要的工作。在碳纖維複合材的修復補強工法方面,由於它具有重量輕、強度高、施工便捷及不破壞原結構體的特點,因此已成為歷史建築補強材的新起之秀,而碳纖維與磚造砌體之黏著強度是攸關複合材的補強效能是否能正常發揮的重要關鍵。
本論文藉由2種磚材,5種砂漿及8種磚牆,透過(Ⅰ)複合材與單一底材之黏著強度,(Ⅱ)複合材與磚牆之黏著強度,(Ⅲ)複合材與單一底材經加速老化試驗後之黏著強度等三項實驗,以施工後的局部破壞性檢測方式-拉拔試驗,來探討碳纖維複合材與磚造砌體的黏著強度,企圖找出複合材的黏著強度值及黏著強度的耐久性能。
研究結論,在實驗(Ⅰ)中:影響複合材與磚造砌體黏著強度之主要因子為「磚材種類」、「砂漿種類」及「有無塗佈底漆」,其結果為新磚的光滑面不利於複合材之黏結,複合材與砂漿之黏著強度與砂漿之膠結材中水泥的含量成正相關,塗佈底漆將有助於複合材與底材之黏著強度的提昇。
在實驗(Ⅱ)中:主要因子之影響程度排序為(1)磚材種類,(2)有無塗佈底漆,(3)砂漿種類,而且在新磚牆中,拉拔強度因砂漿的不同而與紅磚面積呈現不同的相關趨勢;但在舊磚牆中拉拔強度則與紅磚面積成正相關。整體而言,複合材與舊磚牆面的黏著強度大於新磚牆面。
在實驗(Ⅲ)中:在短期的耐候及反覆乾濕等加速老化試驗後,複合材與紅磚及砂漿之黏著強度均有少量提昇的趨勢,而且有塗佈底漆的試體其黏著強度之變化較無底漆者為緩和。
In Taiwan, most historical buildings are laid with bricks. These brick masonry may cause damage easily as result of weak ductility, environmental changes, and degradation of construction materials. Therefore, when historical buildings are repaired and reused, it is necessary to strengthen their structure. The CFRP has called attention to repairing historical buildings, due to its lightweight, high tensile strength and easy working. More important, the bond strength between the CFRP and brick masonry is the key of effects.
In this study two kinds of bricks, five kinds of mortar and eight kinds of brick walls will be tested through three experiments, including:(Ⅰ) the bond strength between the CFRP and a single substrate, (Ⅱ) the bond strength between the CFRP and brick walls, and (Ⅲ) the bond strength between the CFRP and a single substrate after accelerated aging test.
The conclusion, Experiment (Ⅰ) appears that the main affecting factors are types of bricks and mortar and with or without primers. Smooth surfaces of new bricks are disadvantaged to bonding with the CFRP and bricks. The bond strength of mortar directly relates with contents of cement. Plus, using primer can generally enhance the bond strength.
Experiment (Ⅱ) shows that the bond strength between the CFRP and old brick walls would be greater than new brick walls. The order of affecting factors is listed as follows: (1) the kinds of bricks, (2) with or without primers, (3) the kinds of mortar.
Experiment (Ⅲ) occurs that the bond strength between the CFRP and old bricks and the bond strength between the CFRP and mortar would not decrease significantly under short-term ultraviolet and moisture.
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J-01 村橋久弘等,《連續纖維による補修、補強》,理工圖書,日本
三、英文文獻
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