臺灣博碩士論文加值系統

混凝土為多孔複合材料，其經由水泥水化反應後，仍會存有不同尺度的孔隙，外部有害物質可藉由孔隙水傳輸滲入混凝土，導致混凝土劣化，降低使用壽命。使用卜作嵐材料或水淬高爐石粉，作為輔助性膠結料，或可減少混凝土孔隙量或孔隙尺度，有助於提升耐久性。
本研究試驗計畫係以飛灰、水淬高爐石粉與矽灰取代部分水泥，取代率10%、20%及30%；水膠比為0.4及0.6，製作水泥砂漿試體進行物理性及耐久性試驗，評估輔助性膠結料對水泥基複合材料孔隙結構之影響，試驗結果顯示水淬高爐石粉取代水泥30%，試體孔隙結構最緻密。

Concrete is a porous composite，various sizes of internal pores exist even after cement hydration. External harmful masses would dissolve in pore water and pass in concrete, which may result in concrete degradation and life reduction. In order to improve concrete durability, use of pozzolanic materials or ggbs as supplementary cementing material may reduce the amount or size of pore structure.
Fly ash, silica fume and ggbs as partial cementing materials were used in the testing program and replacement percentages for cement were 10%, 20% and 30%. The water-cementitious ratios of mixtures were 0.4 and 0.6. Mortar specimens were cast in the lab. Physical properties and durability tests were conducted to evaluate the pore structures of cement-based composites. Test results illustrate mortar specimen with 30% ggbs replacement has most dense pore structure.

第1章 緒論 1
1-1 前言 1
1-2 研究動機 2
第2章 文獻回顧 5
2-1 綠色混凝土 5
2-2 卜作嵐材料 6
2-2-1 矽灰 6
2-2-2 飛灰 6
2-2-3 爐石 7
2-3 卜作嵐材料對混凝土之影響 7
2-3-1 卜作嵐材料對混凝土工作性之影響 8
2-3-2 卜作嵐材料對混凝土力學性質之影響 9
2-4 水泥砂漿之孔隙結構 9
2-4-1 毛細孔隙 10
2-4-2 膠體孔隙 11
2-4-3 搗實孔隙 11
2-4-4 輸氣孔隙 11
2-5 孔隙對混凝土之影響 12
第3章 研究方法與步驟 13
3-1 實驗架構 13
3-2 實驗方法 15
3-2-1 壓汞孔隙量測試驗 15
3-2-2 抗壓強度試驗 16
3-2-3 飽和吸水率試驗 16
3-2-4 初始表面吸水率試驗 17
3-2-5 快速氯離子滲透試驗 17
第4章 結果與討論 21
4-1 硬固性質試驗 21
4-1-1 抗壓強度試驗 21
4-2 耐久性質試驗 23
4-2-1 飽和吸水率試驗 23
4-2-2 初始表面吸水率試驗(ISAT) 25
4-2-3 快速氯離子滲透試驗(RCPT) 30
4-3 微觀性質試驗 33
4-3-1 壓汞孔隙量測試驗(MIP) 33
第5章 結論 43
參考文獻 45

[1]M.H. Zhang, O.E. Gjorv, Effect of silica fume on pore structure and chloride diffusivity of low porosity cement pastes, Cement and Concrete Research, Vol. 21, No. 6, pp.1006–14, 1991.
[2]S. Mindess, J.F. Young, D. Darwin, Concrete, Prentice Hall: Upper Saddle River, NJ, USA, pp.477–504, 2003.
[3]R. Larry. Roberts, Jan P. Skalny, Pore structure and permeability of cementitious materials, Symposium Held November, pp.28–30, 1988.
[4]V.M. Malhotra, Making Concrete “Greener＂ with Fly Ash –supplementary cementing materials can reduce greenhouse gas into the environment, Concrete International, Vol. 19, No. 5, pp. 61-66, 1999.
[5]D.M. Roy, Alkali-activated Cements: Opportunities and Cha-llenges, Cement and Concrete Research, Vol. 29, No. 2, pp. 249-254, 1999.
[6]P. Ballester, A. Hidalgo, I. Mármol , J. Morales, L. Sánchez, Effect of brief heat-curing on microstructure and mechanical properties in fresh cement based mortars, Cement and Concrete Research, Vol. 39, pp. 573–579, 2009.
[7]A. M. Brandt, “Cement-based Composites: Materials, Mechanical Properties and Performance”, E & FN SPON, UK, pp. 116-118, 1995.
[8]H. Yazıc, The effect of curing conditions on compressive strength of ultra high strength concrete with high volume mineral admixtures, Building and Environment, Vol. 42, pp.2083–2089, 2007.
[9]行政院公共工程委員會，公共工程飛灰混凝土使用手冊，1999。
[10]行政院公共工程委員會，公共工程飛灰混凝土使用手冊，1999。
[11]黃兆龍，卜作嵐混凝土使用手冊，詹世書局，2007
[12]中國土木水利工程學會混凝土工程委員會，混凝土工程施工規範與解說，科技圖書股份有限公司，2007
[13]楊志強，淺議綠色混凝土的「綠色」內涵，技師期刊 61 期，2013。
[14]K.M. Liew, A.O. Sojobi, L.W. Zhang, “Green concrete: Prospects and challenges”, Construction and Building Materials, Volume 156, 15 December 2017, P. 1063-1095.
[15]ASTM C618, “Standard Specifications for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete”, Annual book of ASTM Standard, 2008.
[16]李金來，添加矽灰與飛灰對水泥基質複合材料孔隙結構與腐蝕行為之研究，國立台灣海洋大學材料工程研究所博士論文，2013。
[17]M. Rostami, K. Behfarnia, ” The effect of silica fume on durability of alkali activated slag concrete”, Construction and Building Materials, Volume 134, 1 March 2017, P. 262-268.
[18]J.F. Young, S. Mindess, “Concrete,” 2nd edition, Englewood Cliffs, New Jersey: Prentice Hall, 2003.
[19]C.L. Page, N.R. Short, T.A.El, “Diffusion of Chloride Ions in Hardened Cement Paste”, Cement and Concrete Research, Volume 11, 1981, P.395-406.
[20]Jiting Xie, Obada Kayali, “Effect of superplasticiser on workability enhancement of Class F and Class C fly ash-based geopolymers”, Construction and Building Materials, Volume 122, 30 September 2016, P. 36-42.
[21]江洛亭，卜作嵐材料對輕質骨材混凝土介面區微觀性質之研究，國立高雄應用科技大學土木工程與防災科技研究所碩士論文，2006。
[22]呂恩賜，廢觸媒與卜作嵐材料共同取代部分水泥對自充填混凝土工程性質之研究，國立雲林科技大學營建工程研究所碩士論文，2006。
[23]杜弘文，以壓汞孔隙儀探討水泥質材料孔隙結構，中華技術學院土木防災研究所碩士論文，2009。
[24]T.C. Power, “The Physical Structure of Portland Cement Paste, in The Chemistry of Cements”, Acad. Press, London, Volume 1, 1964, P.391–416.
[25]J.F. Young, “A view of the pore structure of cement paste and concrete and its influence on permeability”, in Permeability of concrete, ACI SP-108, 1988, P.1-18.
[26]C.j. Shi, K. Zheng, “A review on the use of waste glasses in the production of cement and concrete. Resources”, Conservation and Recycling, Volume 52, 2007, P. 234–247.
[27]MJ. Terro, “Properties of concrete made with recycled crushed glass at elevated temperatures”, Building Environ, Volume 41, No 5, 2006,P. 633–639.
[28]V.M. Malhotra, P.K. Mehta, “Pozzolanic and Cementitious Material. Advances in Concrete Technology”, Volume 1, 1st edition, Taylor & Francis, 1996.