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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/85015完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 詹穎雯(Yin-Wen Chan) | |
| dc.contributor.author | Cheng-Yu Wu | en |
| dc.contributor.author | 吳承禹 | zh_TW |
| dc.date.accessioned | 2023-03-19T22:38:15Z | - |
| dc.date.copyright | 2022-08-30 | |
| dc.date.issued | 2022 | |
| dc.date.submitted | 2022-08-19 | |
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[29] Zehua Li, YinWang, Hong Yao, Shiying Lin , “Novel CO2 sorbent: Ca(OH)2 with high strength”, Fuel Processing Technology, 2015 [30] 史才軍、王吉云、涂貞軍、王德輝，「二氧化碳養護混凝土技術進展」，材料導報A:綜述篇，第31卷，第3期，第134-138頁，2017年。 [31] 史才軍、何平平、涂貞軍、曹張，「預養護二氧化碳養護混凝土過程及微觀結構的影響」，矽酸鹽學報，第42卷，第8期，第996-1104頁，2014年。 [32] 史才軍、鄒廣炎、何富強，「二氧化碳養護混凝土的動力學研究」，矽酸鹽學報，第38卷，第7期，第1179-1184頁，2010年。 [33] 行政院公共工程委員會，「公共工程高爐石混凝土使用手冊」。 [34] 李修齊，「高強度混凝土水中磨耗性質之機理探討」，碩士論文，國立臺灣大學土木工程研究所，1997。 [35] 周理、呂昌忠、王怡林、姚金花、王瑜，「述評超臨界溫度氣體在多孔固體上的物理吸附」，天津大學化學工程研究所高壓吸附研究室，化學進展，第11卷第3期，1999 [36] 林建宏，「爐石混凝土水中磨耗性質研究」，碩士論文，國立台灣大學土木工程研究所，2004。 [37] 湯為窯，「高強度混凝土水中磨耗性質與早期收縮行為之研究」，碩士論文，國立台灣大學土木工程研究所，1997。 [38] 趙文成，「高等混凝土」，講義，交通大學，1997，新竹。 [39] 趙伯融，「新拌混凝土碳封存及碳化養護之研究」，碩士論文，台灣大學，2021 [40] 礱龍山，「高強度波索蘭混凝土之基本工程性質研究」，碩士論文，國立交通大學土木工程研究所，1991。 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/85015 | - |
| dc.description.abstract | 隨著科技日新月異，世界各國的二氧化碳排放量也跟著急速上升，所造成的全球暖化問題也成為大家關注的焦點，而二氧化碳排放來源主要是由工業、能源及運輸占大多數，世界各地的科學家都在努力減少大氣中的二氧化碳濃度，因此近幾十年出現了許多二氧化碳封存技術，其中混凝土中有許多成分是可以跟二氧化碳產生反應，若能利用混凝土將二氧化碳封存，並在不對力學性能造成負面影響情況下，或許可以成為一個有潛力的碳封存方式。 本研究主要是利用二氧化碳養護的方式來封存二氧化碳，將齡期一天的水泥砂漿試體置入高壓的二氧化碳環境進行碳化反應，但是早齡期水泥砂漿試體中的孔隙都充滿水分，孔隙中的水分會阻礙二氧化碳進入試體中，因此在進行碳化反應前，會先將試體放在相對濕度50%左右的環境，主要目的就是要將孔隙中水分散失，本研究將此步驟稱為預處理(pre-conditioning)。在整個二氧化碳養護過程中，將設計不同水灰比、不同預處理時間、不同碳化時間和不同的二氧化碳壓力，在二氧化碳養護結束後，進行單軸抗壓試驗，比較碳化反應對硬固試體的力學性質影響，另外，還會進行二氧化碳吸收量的計算，比較不同參數對水泥吸收二氧化碳的影響，根據二氧化碳養護結束當下試體的抗壓強度及二氧化碳吸收量，得出最佳的二氧化碳養護流程，最後會在經過二氧化碳養護的試體到達齡期7天、28天時，會進行抗壓試驗，來觀察經過二氧化碳養護的試體後續強度的發展。 根據試驗結果，可以計算出二氧化碳養護的碳封存效果及對抗壓強度的影響，並找出最佳的二氧化碳養護方法，最後針對二氧化碳跟水泥反應時的化學機理進行探討。 | zh_TW |
| dc.description.abstract | With the advance of technology, the global carbon dioxide emission increase rapidly, and global warning has grabbed the public’s attentions. As for source of carbon dioxide emission, industry, energy and transportation are the majority. In order to solve the issue, scientists work hard to reduce the concentration of carbon dioxide in the atmosphere. Therefore, the presence of carbon capture and storage technology has evoked within the decades where many elements in the concrete can react with carbon dioxide. The method of storing carbon dioxide in the concrete could be promising if it can maintain good compression. This research looks into how carbon curing stores carbon dioxide, putting cement mortar specimen in the high-pressure environment for one-day age. However, pores in cement mortar specimen are fully filled with water in the early age, which blocks the diffusion of carbon dioxide into the specimen. Therefore, a process, namely pre-conditioning, will be adopted by placing specimen in the environment with RH 50% before exercising carbonization reaction to get rid of water in pores. During the process of carbon curing, several conditions will be set. For instance, different water cement ratio, pre-conditioning duration, carbonization duration and pressure. After carbon curing, compression test will be conducted. Additionally, the amount of carbon dioxide absorbed by specimen under different conditions will be calculated and find out the optimal carbon curing according to experiment results. Finally, specimen after carbon curing will be conducted compression tests to observe the compression strength development of post carbon curing specimen in 7-day and 28-day age. Based on the experiment results, the effectiveness for compression and carbon storage can be calculated, and find out the optimal carbon curing method. Lastly, reaction mechanism of carbon dioxide and cement will be discussed. | en |
| dc.description.provenance | Made available in DSpace on 2023-03-19T22:38:15Z (GMT). No. of bitstreams: 1 U0001-1808202221041000.pdf: 6228501 bytes, checksum: 779d5d50a6f8852db4d9aea336b42582 (MD5) Previous issue date: 2022 | en |
| dc.description.tableofcontents | 誌謝 i 摘要 iii Abstract iv 目錄 vi 圖目錄 ix 表目錄 xii 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 4 2.1.3 骨材 8 2.1.4 界面鍵結強度 8 2.1.5 孔隙結構 9 2.2 碳捕捉與封存技術 11 2.2.1 前言 11 2.2.2 混凝土中的碳化機制 14 2.2.3 碳化反應之理論數學模型 15 2.2.4 混凝土中高鈣物質的吸附行為 20 2.3 二氧化碳養護介紹 24 2.3.1 二氧化碳吸收量計算方法 24 2.3.2 預處理介紹 27 2.3.3 碳化反應參數介紹 28 2.4 二氧化碳養護對混凝土微觀結構之影響 36 第三章、 實驗設計與分析方法 47 3.1 實驗內容與架構 47 3.2 試驗材料 48 3.3 試驗儀器與設備 52 3.4 水泥砂漿拌合及配比 58 3.4.1 水泥砂漿拌合 58 3.4.2 水泥砂漿配比 58 3.5 實驗設計 59 3.5.1 預處理初步試驗 60 3.5.2 碳化反應參數試驗 62 3.5.3 預處理時間試驗 63 3.5.4 二氧化碳養護對強度影響試驗 64 3.5.5 碳化深度試驗 65 3.6 實驗分析方法 66 3.6.1 二氧化碳吸收量計算 66 3.6.2 抗壓強度試驗 67 第四章、 試驗結果分析與討論 69 4.1 前言 69 4.2 預處理初步試驗結果 69 4.3 碳化反應參數試驗結果 72 4.3.1 碳化時間試驗結果 72 4.3.2 碳化壓力試驗結果 78 4.4 預處理時間試驗結果 82 4.5 二氧化碳養護對強度影響試驗結果 87 4.6 碳化深度試驗 89 第五章、 結論與建議 92 5.1 結論 92 5.2 建議 94 第六章、 參考文獻 96 | |
| dc.language.iso | zh-TW | |
| dc.subject | 二氧化碳養護 | zh_TW |
| dc.subject | 全球暖化 | zh_TW |
| dc.subject | 碳封存 | zh_TW |
| dc.subject | 碳化反應 | zh_TW |
| dc.subject | carbon capture and storage | en |
| dc.subject | carbonization reaction | en |
| dc.subject | carbon curing | en |
| dc.subject | global warming | en |
| dc.title | 增進混凝土碳封存技術之研究 | zh_TW |
| dc.title | Study on Improving Carbon Capture and Storage Technology of Concrete | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 110-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 廖文正(Wen-Cheng Liao),楊仲家(Chung-Chia Yang) | |
| dc.subject.keyword | 全球暖化,碳封存,碳化反應,二氧化碳養護, | zh_TW |
| dc.subject.keyword | global warming,carbon capture and storage,carbonization reaction,carbon curing, | en |
| dc.relation.page | 98 | |
| dc.identifier.doi | 10.6342/NTU202202560 | |
| dc.rights.note | 同意授權(限校園內公開) | |
| dc.date.accepted | 2022-08-19 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
| dc.date.embargo-lift | 2022-08-30 | - |
| 顯示於系所單位： | 土木工程學系 | |
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