請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/70380
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 詹穎雯 | |
dc.contributor.author | Yao-An Hsu | en |
dc.contributor.author | 許燿安 | zh_TW |
dc.date.accessioned | 2021-06-17T04:26:57Z | - |
dc.date.available | 2019-08-19 | |
dc.date.copyright | 2018-08-19 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018-08-14 | |
dc.identifier.citation | 參考文獻
[1] “Standard Specification for Portland Cement”, ASTM C 150 , 2007. [2] Bogue, R.H., “The Chemistry of Portland Cement”, Reinhold Publishing Corporation, New York, 1947, pp.572. [3] Swaddiwudhipong et al. , ”Simulation of the exothermic hydration of Portland Cement”, Advances in Cement Researches, Vol. 14 ,No. 2 , 2002. [4] 爐石利用推廣手冊,2000,中鋼集團,高雄市。 [5] Feldman, R.E., and Sereda, P.J.,”Engineering Journal(Canada)”, vol.53,No. 8/9, pp.53-59, 1970. [6] 李銘智,「巨積混凝土絕熱溫升之量測與控制」,營建知訊/每月專題/巨積混凝土施工、溫控守則,2017。 [7] 朱柏芳,「大體積混凝土溫度應力與溫度控制」,中國電力出版社1999。 [8] 邱暉仁,陳誌慶,鍾鴻書,金崇仁,「混合水泥應用於巨積混凝土之案例分析」,混凝土科技,第七卷,第三期,2013年。 [9] Abdol R. Chini, Larry C. Muszynski,Lucy Acquaye, “Determination of maximum placement and curing temperatures in mass concrete to avoid durability problems and DEF”, Florida Department of Transportation(Contract No. BC 354-29). [10] “Specification for Structural Concrete”, reported by ACI Committee 301, 2010. [11] 行政會公共工程委員會施工綱要規範第03700章,2016。 [12] 林焜鋒,「混凝土拱壩長期力學行為分析」,台灣大學土木工程所結構組,1980。 [13] “Cooling and Insulating Systems for Mass Concrete”, reported by ACI committee 207, 34R-93, 1997. [14] 張林鳳,「台灣地區混凝土橋梁溫度效應分析研究」,台灣大學土木工程所結構組,1995。 [15] 詹穎雯,廖同柏,「台灣地區巨積混凝土配比與熱學特性之研究計畫書」,財團法人中興工程顧問社,社團法人台灣混凝土學會,2018,pp.2. [16] 中國土木水利工程學會,「混凝土工程施工規範與解說(土木402-94)」,科技圖書股份有限公司,台北,2005。 [17] “Report on Thermal and Volume Change Effects on Cracking of Mass Concrete”, reported by ACI Committee 207.2R-07, 2007. [18] “Standard Performance Specification for Hydraulic Cement”, ASTM C 1157-03, 2003. [19] “Standard Specification for Blended Hydraulic Cements”, ASTM C 595-03, 2003. [20] 林平全,李銘智,「巨積混凝土裂縫問題探討與預防對策」,台灣混凝土學會2015年混凝土工程研討會,2015。 [21] “Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete”, reported by ACI 211.1, 1991. [22] “Properties of set Concrete at Early Ages. State-of-the-art report”, RILEM 42-CEA, Materials and Structures, V. 14, No. 84, 1981. [23] Van Breugel. K., “Simulation of Hydration and Formation of Structure in Hardening Cement Based Materials”, PhD thesis, 305 pp, 2nd Edition, Delft University Press, Netherlands, 1997. [24] Mills, R.H., “Factors Influencing Cessation of Hydration in Water Cured Cement Pastes”, Special Report No. 90, Proceedings of the Symposium on the Structure of Portland Cement Paste and Concrete, Highway Research Board, Washington, D.C., 1966, pp. 399-450. [25] Anton K. Schindler, Kevin L. Folliard, “Influence of Supplementary Cementing Materials on the Heat of Hydration of Concrete”, Advances in Cement and Concrete IX Conference Copper Mountain Conference Resort in Colorado August 10-14, 2003. [26] Gibbon, G.J., and Y. Ballim, “Determination of the Thermal Conductivity of Concrete during the Early Stages of Hydration”, Magazine of Concrete Research, Proceedings V.50., p.229-235 ,1998. [27] Glasser, F.P., et al., “Cement and Concrete Research(Journal)”, Vol. 8, No. 733-740, 1941. [28] Powers, T.C., et al., ACI Journal, Part 1-9, 1946/1947. [29] Kjellsen, K.O., and Detwiler, R.J., and, Gjørv, O.E., “Development of Microstructure in Plain Cement Pastes Hydrated at Different Temperatures”, Cement and Concrete Research, Vol. 21, No. 1, pp. 179-189, 1991. [30] McIntosh, J.D., ”Electrical Curing of Concrete”, Magazine of Concrete Research, Vol.1, No.1, pp21-28, Jan 1949. [31] Nurse, R.W., ”Steam Curing of concrete”, Magazine of Concrete Research, Vol.1, No.2, pp.79-88, June 1949. [32] Saul, A.G. A., ”Principles Underlying the Steam Curing of concrete at Atmospheric Pressure”, Magazine of Concrete Research, Vol.2, No.6, pp127-140, March 1951. [33] 李振瑋,「材料與環境溫度對巨積混凝土初期心表溫差影響之研究」,台灣大學土木工程所結構組,2007。 [34] “Standard Practice for Estimating Concrete Strength by the Maturity Method”, ASTM C1074, 1999. [35] Hansen P. F., Pedersen E. J., “Measuring Instrumentfor the Control of Concrete Hardening”, Nord Betong, pp.21-25,1977. [36] Tank, R. C., and Carino, N. J., “Rate Constant Functions for Strength Development of Concrete,” ACI Materials Journal, V. 88, No. 1, Jan.-Feb., pp. 74-83 , 1991. [37] ASTM C 1074, “Standard Practice for Estimating Concrete Strength by the Maturity Method,” ASTM International, West Conshohocken, Pa., pp.8, 1998. [38] Hansen P. F., and Pedersen, E.J., “Curing of Concrete Structures,”Draft DEB-Guide to Durable Concrete Structures, Appendix 1, Comité Euro-International du Béton, Switzerland, 1985. [39] Jonathan L. Poole, Kyle A. Riding, Kevin L. Folliard, Maria C. G. Juenger, Anton K. Schindler, “Methods for Calculating Activation Energy for Portland Cement”, reported by ACI Materials Journal, Jan-Feb, 2007. [40] Schindler, A. K., “Effect of Temperature on Hydration of Cementitious Materials”, ACI Materials Journal, V. 101, No. 1, Jan.-Feb. 2004. [41] J. L. Poole, K. A. Riding, K. J. Folliard, M. C. G. Juenger, and A. K. Schindler, “Methods for Calculating Activation Energy for Portland Cement,” ACI Materials Journal, V. 104, No. 1, pp. 303-311, Jan.-Feb. 2007. [42] J. L. Poole, K. A. Riding, K. J. Folliard, M. C. G. Juenger, David W. Fowler, A. K. Schindler, Harowel G. Wheat, “Modeling Temperature Sensitivity and Heat Evolution of Concrete”, University of Texas at Austin, Austin, TX, PhD dissertation, 2007. [43] Kook-Han Kim, Sang-Eun Jeon, Jin-Keun Kim, Sungchul Yang, “An Experiment Study on Thermal Conductivity of Concrete”, reported by Cement and Concrete Research 33, 2003. [44] M.I. Khan, ”Factors affecting the thermal properties of concrete and applicability of its prediction models”, Building and Environment, 2002. [45] Khan, A.A., W.D. Cook, and D. Mitcheel, “Thermal Properties and Transient Thermal Analysis of Structural Members duringHydration, “ACI Journal, ProceedingsV.95, No.3, pp.293-303 ,1998. [46] Mindess, S., and J.F. Young, “Concrete.” Prentice-Hall. Inc. Englewood Cliffs, New Jersey, pp.302-315, 1981. [47] Brown T. D., Javaid M. Y., “The Thermal Conductivity of Fresh Concrete”, Mater. Construct., pp.411-416, 1970. [48] G. De Schutter, L. Taerwe, “Specific Heat and Thermal Diffusivity of Hardening Concrete”, Magazine of Concrete Research, No. 172, Sept., pp. 203-208, 1995. [49] “Design and Control of Concrete Mixtures”, 14th Edition, Portland Cement Association, 2002. [50] Kyle A. Riding, Jonathan L. Poole, Anton K. Schindler, Maria C. G. Juenger, “Evaluation of Temperature Prediction Methods for Mass Concrete Members”, ACI Materials Journal, Sept-Oct, 2006. [51] Kyle A. Riding, Jonathan L. Poole, Anton K. Schindler, Maria C. G. Juenger, Kecin J. Folliard, “Modeling Hydration of Cementitious Systems”, reported by ACI Materials Journal, 2012. [52] 李銘智,「巨積混凝土版初期溫昇與熱應力分析」,台灣大學土木工程所結構組,2003。 [53] 「巨積混凝土實尺寸試體溫度量測」,委託單位:日商清水營造工程股份有限公司 台灣分公司,受委單位:財團法人臺灣營建研究院,案號: TTC-107002-1,3/15,2018。 [54] 石泉等人,「嚴寒地區大體積混凝土溫度場變化規律研究與實踐」,中國水利水電出版社,p.80~81,2009。 [55] Xiao-Yong Wang, Han-Seung Lee, “Modeling the hydration of concrete incorporating fly ash or slag”, Cement and Concrete Research, 2010. [56] 张应迁,张洪才,「ANSYS 有限元分析从入门到精通」,人民邮电出版社,北京,pp.148-164,2010。 [57] Yun Lin, Hung-Liang Chen, “Thermal Analysis and Adiabatic Calorimetry for Early-Age Concrete Members”, Department of Civil and Engineering, West Virginia University, USA, 2015. [58] 詹穎雯、鄭瑞濱、徐敏晃、邱暉仁,「CA450B標自充填混凝土供料施工顧問計畫成果報告」,委託單位: 互助營造股份有限公司,執行單位: 財團法人臺灣營建研究院,2011。 [59] Adol R. Chini, Arash Parham, “Adiabatic Temperature Rise of Mass Concrete in Florida Final Report”, submitted to Florida Department of Transporation, Feb. 2005. [60] Sandberg, P. and Roberts, L., “Cement-Admixture Interactions Related to Aluminate Control”, Journal of ASTM International, V. 2, No. 6 June 2005, pp. 6-13. [61] “Standard Specification for Chemical Admixtures for Concrete”, ASTM C 494, 2004. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/70380 | - |
dc.description.abstract | 混凝土的強度、勁度來自水泥、卜作嵐材料與拌合水進行水化反應後產生的C-S-H膠體,而水化反應為放熱的化學反應,混凝土澆置後的1至3天為水化反應最劇烈的時期,此時期也是混凝土溫升最快的階段。巨積混凝土因其尺寸龐大加上混凝土為導熱性較差之材料,因此於早齡期在混凝土中心處有蓄熱之情形,再加上高溫環境會再刺激水化反應的速率,使混凝土中心、表面之溫差會快速增大而形成較大的熱張應力,造成混凝土早期開裂,因此巨積混凝土的早期溫度預測、控制為本研究要探討的課題。
本研究使用ANSYS以有限元素法模擬巨積混凝土早齡期的溫度場。透過混凝土絕熱溫升試驗結果來預測早期水化反應,並以成熟度法推導出可同時考慮齡期及溫度效應之混凝土單位體積生熱率,希望進行有限元分析時給予模型之熱源荷載能隨時間、溫度調整其生熱的速率以符合較真實之水化行為;另外,會再給予模型僅能隨時間調整水化速率之熱源荷載來分析溫度場。本研究分別採用以上兩種熱源荷載,進行現地巨積混凝土試體早期溫度場之有限元素分析,比較兩種分析方法之差異。 除了混凝土水化行為的發展,混凝土初始溫度、環境溫度、混凝土熱傳導係數及保溫措施也會影響巨積混凝土早期溫度場之發展,本研究透過有限元素法分析探討以上各變因影響心溫、表溫及心表溫差之情形。建議巨積混凝土盡量避免高溫澆置、避免澆置於氣溫較低之環境及盡量在表面佈設保溫措施。 另外,透過蒐集國內外近15年之絕熱溫升試驗資料,以建置水化參數資料庫來探討影響混凝土早齡期水化行為之變因,以提供日後建立水化度預測公式之參考及建議。 | zh_TW |
dc.description.abstract | The strength and stiffness of concrete come from the C-S-H gel produced by hydration reaction of cement, pozzolanic material and mixing water. Hydration reaction is exothermic chemical reaction. 1 to 3 days after concrete placement is the most severe stage of hydration reaction, and this period is also the fastest stage of concrete temperature rise. Because of its large size and poor thermal conductivity of concrete, mass concrete has heat storage at the center at the early age. Moreover, the high temperature environment stimulates the rate of hydration reaction, so that the temperature difference between the center and surface of the concrete will increase rapidly to form larger thermal stress, resulting in the early cracks of concrete. Therefore, early temperature prediction and control of mass concrete is the topic to be discussed in this study.
In this study, the finite element method were used to simulate the temperature field of the early age of mass concrete in ANSYS. The early hydration reaction was predicted through the experimental results of concrete adiabatic temperature rise test, and the unit volume heat generation rate of concrete, which could simultaneously consider the age and temperature effects, was derived by the maturity method. It was hoped that the heat load given to the model during the finite element analysis could adjust the heat generation rate with time and temperature to conform to the actual hydration behavior. Moreover, this study gave another heat load of the model which could only be adjusted the hydration rate with time to analyze the temperature field. In this study, the above two kinds of heat loads were respectively used to do the finite element analysis of the early temperature field of the mass concrete specimen in the field, and this study also compared the difference between the two methods. In addition to the development of concrete hydration, initial temperature, ambient temperature, thermal conductivity and heat preservation measures of concrete will also affect the development of the early temperature field of the mass concrete. In this study, the effects of above variables on center temperature, side temperature and center-side temperature difference were analyzed by finite element analysis. It is recommended that mass concrete should be avoid high temperature pouring, be avoid pouring in a low temperature environment and be arranged insulation measures on the surface. Moreover, by collecting the data of adiabatic temperature rise test at home and abroad for nearly 15 years, the variation of hydration behavior of concrete at the early age was discussed with the establishment of the database of hydration parameters to provide reference and suggestions for establishing the prediction formula of the degree of hydration in the future. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T04:26:57Z (GMT). No. of bitstreams: 1 ntu-107-R05521241-1.pdf: 8822144 bytes, checksum: 9699283ac55f100f9b99f58c0f4f9c33 (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 目錄
誌謝 I 摘要 III ABSTRACT IV 表目錄 X 圖目錄 XII 第一章、 緒論 1 1.1. 研究動機與目的 1 1.2. 研究範圍與內容 2 第二章、 文獻回顧 4 2.1. 材料介紹 4 2.1.1 卜特蘭水泥 4 2.1.2 卜特蘭水泥的組成 5 2.2. 卜作嵐材料 6 2.2.1 水淬高爐爐碴粉 7 2.2.2 飛灰 8 2.3. 巨積混凝土特性 8 2.3.2 巨積混凝土定義 11 2.3.3 巨積混凝土熱應力理論 12 2.3.4 巨積混凝土熱應力種類 13 2.4. 混凝土水化熱 14 2.4.1 影響混凝土水化熱之膠結材料因子 14 2.4.2 影響混凝土水化熱之膠結材料細度因子 19 2.4.3 影響混凝土水化熱之膠結材料用量影響因子 20 2.4.4 影響混凝土水化熱之水膠比影響因子 21 2.4.5 影響混凝土水化熱之新拌溫度影響因子 22 2.5. 混凝土水化度 22 2.5.1 水化度定義 22 2.5.2 水化度之量測方法 24 2.5.3 極限水化度 24 2.5.4 成熟度法(Maturity Method) 27 2.5.5 計算成熟度 28 2.5.6 表徵活化能 30 2.6. 混凝土熱傳導性質 33 2.6.1 熱傳導係數 33 2.6.2 比熱 35 2.6.3 硬固中混凝土熱學性質 36 2.7. 巨積混凝土溫升預測模式 36 2.7.1 Schmidt Method 36 2.7.2 PCA Method 40 2.7.3 Graphical Method of ACI 207.2R 41 第三章、 分析計畫與方法 44 3.1. 計畫背景 44 3.2. 溫度場分析程序 45 3.3. 溫度場有限元素分析 48 3.3.1 有限元素分析假設 48 3.3.2 定義元素種類 49 3.3.3 材料性質設定 50 3.3.4 幾何模型建立 51 3.3.5 劃分元素網格 53 3.3.6 定義分析類型 54 3.3.7 初始條件、邊界條件設定 55 3.3.8 水化熱生熱率 59 3.3.9 APDL語言二次開發 80 3.4. 溫度場分析之變因探討 81 第四章、 分析結果與討論 84 4.1. 溫度場分析結果 84 4.1.1 早齡期溫度分佈 84 4.1.2 早齡期心表溫差 98 4.2. 溫度場變因分析結果 106 4.2.1 混凝土初始溫度影響結果 106 4.2.2 環境溫度影響結果 121 4.2.3 熱傳導係數影響結果 131 4.2.4 不同新拌溫度絕熱溫升試驗之生熱率 141 第五章、 水化度資料庫建置 146 5.1. 資料庫簡介 146 5.2. 水化度發展之影響因子 148 5.2.1 水膠比因子 148 5.2.2 水泥因子 148 5.2.3 SCM因子 149 5.2.4 化學摻料因子 155 5.3. 水化度預測模型之文獻回顧 156 第六章、 結論與建議 163 6.1. 結論 163 6.2. 建議 165 參考文獻 166 附錄A、清水營造巨積混凝土現地資料 172 附錄B、膠結材料資料庫 180 附錄C、水化度資料庫 186 附錄D、化學摻料 202 | |
dc.language.iso | zh-TW | |
dc.title | 以成熟度法預測混凝土早期水化行為與巨積混凝土早期溫度場之有限元分析 | zh_TW |
dc.title | Prediction of Early Hydration Behavior of Concrete by Maturity Method and Finite Element Analysis of Early Thermal Field for Mass Concrete | en |
dc.type | Thesis | |
dc.date.schoolyear | 106-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 廖文正,歐昱辰,李宏仁 | |
dc.subject.keyword | 巨積混凝土,有限元素法,成熟度法,水化度,單位體積生熱率,水化參數資料庫, | zh_TW |
dc.subject.keyword | mass concrete,finite element analysis,maturity method,degree of hydration,unit volume heat generation rate,database of hydration parameters, | en |
dc.relation.page | 204 | |
dc.identifier.doi | 10.6342/NTU201803212 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2018-08-14 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
顯示於系所單位: | 土木工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-107-1.pdf 目前未授權公開取用 | 8.62 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。