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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 詹穎雯 | zh_TW |
dc.contributor.advisor | Yin-Wen Chan | en |
dc.contributor.author | 陳彥輔 | zh_TW |
dc.contributor.author | Yan-Fu Chen | en |
dc.date.accessioned | 2023-09-22T17:51:02Z | - |
dc.date.available | 2023-11-09 | - |
dc.date.copyright | 2023-09-22 | - |
dc.date.issued | 2023 | - |
dc.date.submitted | 2023-08-09 | - |
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Thiery, P. Dangla, P. Belin, G. Habert, N. Roussel, “Carbonation kinetics of a bed of recycled concrete aggregates: a laboratory study on model materials”, Cem. Concr. Res. 46, 2013 [17] M.A. Sorochkin, A.F. Shchurov, I.A. Safonov, “Study of the possibility of using carbon dioxide for accelerating the hardening of products made from Portland cement”, J. Appl. Chem. USSR 48 (1975) 1211–1217 [18] Metha,P.,P.J.M.Monterio,”ConcreteStructure,Propertiesand Materials”,Prentice-Hall inc.,Englewood-Cliffs,N.J.,1996. [19] Min Liu, Shuxian Hong, Yanshuai Wang, Jinrui Zhang, Dongshuai Hou, Biqin Dong, “Compositions and microstructures of hardened cement paste with carbonation curing and further water curing”, Construction and Building Materials, 2021 [20] O.Buyukozturk,A.H.Nilson and F.O.Slate, “Stress-Strain Response and Fracture of a Concrete Model in Biaxial Loading", ACI J., Vol.68, (1971). [21] PAN, Xiaoying, et al. 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A maturity approach to estimate compressive strength development of CO2-cured concrete blocks. Cement and Concrete Composites, 2018, 85: 153-160. [33] Y. Shao, H. El-Hassan, “CO2 Utilization in Concrete”, Third international Conference on Sustainable, Construction Material and Technologies, 2010. [34] Y. Shao, M. S. Mirza, X.Wu , CO2 Sequestration using calciumsilicate Silicate concrete, Canadian Journal of Civil Engineering, 33 (2006) 776-784. [35] ZABIHI, Niloufar; EREN, Özgür. Compressive strength conversion factors of concrete as affected by specimen shape and size. Research journal of applied sciences, engineering and technology, 2014, 7.20: 4251-4257. [36] Zehua Li, YinWang, Hong Yao, Shiying Lin , “Novel CO2 sorbent: Ca(OH)2 with high strength”, Fuel Processing Technology, 2015 [37] ZHANG, Duo; LI, Victor C.; ELLIS, Brian R. Optimal pre-hydration age for CO2 sequestration through portland cement carbonation. ACS Sustainable Chemistry & Engineering, 2018, 6.12: 15976-15981. 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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/90205 | - |
dc.description.abstract | 二氧化碳是主要的溫室氣體之一,對於全球氣候變化起著關鍵作用。全球二氧化碳排放量主要來自燃燒化石燃料(如煤炭、石油和天然氣)以及森林砍伐等人類活動。過去幾十年來,全球二氧化碳排放量一直在增加,導致溫室氣體濃度的升高。隨著全球氣候變化的風險越來越受到重視,許多國家和國際組織已開始採取行動來減少二氧化碳排放,以應對氣候變化,於此同時,因為混凝土中有許多成分能夠跟二氧化碳產生反應,許多學者也開始研究如何在不對混凝土性能造成負面影響的情況下將二氧化碳封存於混凝土,或許可以成為一個有潛力的碳封存方法。
本研究主要利用碳化養護的方式來封存二氧化碳,主要流程為先將齡期一天的水泥砂漿試體拆模後放入乾燥環境中,主要目的是將孔隙中水分散失,使二氧化碳得以進入試體進行反應,本研究將此步驟稱為預處理(Pre-conditioning),在完成預處理後,再將試體放入高壓的二氧化碳環境中進行碳化反應。為了探討試體尺寸大小對於碳化養護的影響,將設計不同的試體尺寸和不同的養護流程,藉由比較不同尺寸與碳化養護流程下的二氧化碳吸收量與抗壓強度,找出碳化養護對於二氧化碳吸收量與抗壓強度的尺寸效應,並同時找出最佳的碳化養護流程。 | zh_TW |
dc.description.abstract | Carbon dioxide is one of the main greenhouse gases and plays a crucial role in global climate change. Global carbon dioxide emissions primarily come from human activities such as the burning of fossil fuels (such as coal, oil, and natural gas) and deforestation. Over the past few decades, global carbon dioxide emissions have been increasing, leading to a rise in greenhouse gas concentrations. As the risks of global climate change are increasingly recognized, many countries and international organizations have started taking action to reduce carbon dioxide emissions and address climate change.
Meanwhile, because concrete contains many components that can react with carbon dioxide, researchers have also begun studying how to sequester carbon dioxide in concrete without negatively affecting its performance. This could potentially become a promising method for carbon storage. This study primarily utilizes carbonation curing to stores carbon dioxide. The main process involves demolding one-day-old cement mortar specimens and placing them in a dry environment to allow the dispersion of moisture in the pores, enabling carbon dioxide to enter the specimens for reaction. This step is referred to as pre-conditioning. After completing the pre-conditioning, the specimens are then placed in a high-pressure carbon dioxide environment for carbonation reaction. To investigate the influence of specimen size on carbonation curing, different specimen sizes and curing processes will be designed. By comparing the carbon dioxide absorption and compressive strength under different sizes and carbonation curing processes, the study aims to identify the size effect of carbonation curing on carbon dioxide absorption and compressive strength. Furthermore, the study aims to determine the optimal carbonation curing process. | en |
dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2023-09-22T17:51:02Z No. of bitstreams: 0 | en |
dc.description.provenance | Made available in DSpace on 2023-09-22T17:51:02Z (GMT). No. of bitstreams: 0 | en |
dc.description.tableofcontents | 目錄
誌謝 i 摘要 ii Abstract iii 目錄 v 圖目錄 ix 表目錄 xiii 第一章、 緒論 1 1.1 研究動機 1 1.2 研究目的 2 1.3 研究流程圖 2 第二章、 文獻回顧 4 2.1 影響混凝土強度因素 4 2.1.1 水灰比 4 2.1.2 水泥水化機理 5 2.1.3 骨材 8 2.1.4 界面鍵結強度 9 2.1.5 孔隙結構 10 2.1.6 抗壓強度之尺寸效應 11 2.2 碳捕捉與碳封存技術 12 2.2.1 碳補捉 12 2.2.2 碳運輸 14 2.2.3 碳封存 14 2.2.4 混凝土之碳封存 15 2.3 二氧化碳養護介紹 20 2.3.1 預處理 21 2.3.2 碳化養護方式 22 2.3.3 後養護 24 2.3.4 二氧化碳吸收量計算方法 24 2.4 碳化養護參數介紹 28 2.4.1 水灰比 28 2.4.2 初期水化齡期 29 2.4.3 預處理時間 31 2.4.4 碳化濃度 33 2.4.5 碳化壓力 34 2.4.6 碳化溫度 36 2.4.7 碳化養護時間 39 2.5 二氧化碳養護混凝土之微觀性質 41 2.5.1 TGA/DTG 41 2.5.2 XRD 43 2.5.3 MIP 45 2.5.4 SEM 48 第三章、 實驗設計與分析方法 52 3.1 實驗內容與架構 52 3.2 試驗材料與尺寸 53 3.3 試驗儀器 57 3.4 試體拌合與澆置 62 3.5 試驗固定參數 62 3.6 實驗設計 64 3.6.1 預處理時間試驗 65 3.6.2 固定碳化壓力試驗 66 3.6.3 初始碳化壓力試驗 67 3.6.4 碳化養護時間試驗 68 3.6.5 碳化養護對抗壓強度影響試驗 70 3.6.6 酚酞試驗 71 3.7 實驗分析方法 71 3.7.1 二氧化碳吸收量 71 3.7.2 抗壓強度試驗 73 3.7.3 酚酞試驗 74 第四章、 試驗結果分析與討論 75 4.1 預處理時間試驗結果 75 4.2 固定碳化壓力試驗結果 92 4.3 初始碳化壓力試驗結果 94 4.4 碳化養護時間試驗結果 104 4.5 碳化養護對抗壓強度影響試驗結果 114 4.6 酚酞試驗 117 第五章、 結論與建議 121 5.1 結論 121 5.2 建議 124 第六章、 參考文獻 126 | - |
dc.language.iso | zh_TW | - |
dc.title | 混凝土碳封存尺寸效應之研究 | zh_TW |
dc.title | Study on Size Effect of Carbonation Capture of Concrete | en |
dc.type | Thesis | - |
dc.date.schoolyear | 111-2 | - |
dc.description.degree | 碩士 | - |
dc.contributor.oralexamcommittee | 廖文正;楊仲家 | zh_TW |
dc.contributor.oralexamcommittee | Wen-Cheng Liao;Chung-Chia Yang | en |
dc.subject.keyword | 全球暖化,碳封存,二氧化碳養護,尺寸效應, | zh_TW |
dc.subject.keyword | global warning,carbon capture and storage,carbonation curing,size effect, | en |
dc.relation.page | 129 | - |
dc.identifier.doi | 10.6342/NTU202303348 | - |
dc.rights.note | 同意授權(全球公開) | - |
dc.date.accepted | 2023-08-11 | - |
dc.contributor.author-college | 工學院 | - |
dc.contributor.author-dept | 土木工程學系 | - |
顯示於系所單位: | 土木工程學系 |
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