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論文中文名稱:碳纖維高早強水泥、砂漿與混凝土之力學行為研究 [以論文名稱查詢館藏系統]
論文英文名稱:A Study on Mechanical Behaviors of High-Early-Strength Carbon Fiber Cement ,Sand Grout and Concrete [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木工程系土木與防災碩士班
畢業學年度:106
畢業學期:第二學期
出版年度:107
中文姓名:簡士傑
英文姓名:Chien,Shih-Chieh
研究生學號:105428091
學位類別:碩士
語文別:中文
口試日期:2018/06/30
論文頁數:133
指導教授中文名:李有豐
口試委員中文名:陳清泉;徐增興;楊子賢;李有豐
中文關鍵詞:碳纖維抗壓能力抗彎能力高強度能力修補材
英文關鍵詞:carbon fibercompressive strengthflexural strengthhigh-strength cementpatching mixture
論文中文摘要:為提升水泥材料的相關性能,以額外添加的方式將碳纖維加入水泥中。過去加入纖維主要目的為減少乾燥收縮及控制裂縫,本研究著重於碳纖維水泥混凝土之抗壓、抗彎能力與抗衝擊能力的提升。本文加入5~20 ‰ (重量比)的添加量;長度3~24 mm長度碳纖維,進行各式力學試驗。接著以微觀的方式觀察破壞後的材料行為。本研究發現碳纖維添加量在15~20 ‰,純漿有最佳的強度表現。添加量持續提高時會導致水泥流動性降低,而且強度呈現下降的趨勢。衝擊試驗顯示加入短纖維試體能承受82~141焦耳之能量。抗衝擊能力能提升2~4倍以上。以微觀觀察破壞面上的行為,影響因素包含了纖維的滑脫和纖維斷裂破壞。
論文英文摘要:In order to enhance the relevant properties of cement materials, carbon fiber was added to the cement in a gradual manner. In the past, the main purpose of adding fiber was to reduce drying shrinkage and control cracks. However, this study focuses on the compressive strength, flexural strength and impact resistance of carbon fiber concrete, and observes the behavior of the damaged material in a microscopic manner. In this study, 5~20 ‰ (weight ratio) addition amount; length 3~24 mm length carbon fiber is added for various mechanical tests.This study found that the amount of fiber added has the best strength performance at 15 to 20 ‰. The continuous increase in the amount of added carbon fiber leads to a decrease in the strength and fluidity of the cement. An impact test showed that the addition of short fiber specimens allows it to withstand 82 to 141 joules of energy.The compressive strength (early strength) of the fiber concrete specimens was lower than that of the carbon fiber cement, and its flexural strength was about 3 MPa. It was judged that the fiber strength is higher than the strength of the aggregates, which could not significantly increase the strength of the specimens, but it was still better than that of the sample without fiber. Microscopic observations of the destruction of the material’s surface were noted, and influencing factors include fiber slippage and breakage.
論文目次:摘要 I
ABSTRACT II
目錄 III
表目錄 V
圖目錄 IX
第一章 緒論 1
1.1 前言 1
1.2 研究目的 2
1.3研究方法與流程 4
第二章 文獻回顧 6
2.1 纖維混凝土 6
2.2 碳纖維混凝土 11
第三章 研究內容與實驗規劃 21
3.1 材料介紹 21
3.1.1 碳纖維 21
3.1.2 早強水泥 25
3.2工作性試驗規劃 29
3.3抗壓試驗規劃 30
3.4抗彎試驗規劃 33
3.5收縮試驗規劃 36
3.6衝擊試驗規劃 38
3.7微觀觀察規劃 41
3.8試體命名 42
3.9試體製作流程 43
第四章 純漿之力學試驗 44
4.1 工作性 44
4.2 抗壓試驗 45
4.3 收縮試驗 74
4.4 衝擊試驗 75
4.5 微觀觀察 85
第五章 砂漿之力學試驗 91
5.1 工作性 91
5.2 抗壓強度 93
5.3 抗彎強度 108
5.4 收縮試驗 116
5.5 微觀觀察 117
第六章 混凝土之力學試驗 119
6.1 工作性 119
6.2 抗壓強度 120
6.3 抗彎強度 123
6.4 收縮試驗 124
6.5 微觀觀察 125
第七章 結論 127
參考文獻 129
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