Title page for 953202033


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Student Number 953202033
Author Hnin-Hnin Mon(黃慶慶)
Author's Email Address goldhnin@gmail.com
Statistics This thesis had been viewed 1350 times. Download 975 times.
Department Civil Engineering
Year 2007
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title Feasibility study of concrete made with electric arc furnace slag
Date of Defense 2008-07-03
Page Count 129
Keyword
  • electric arc furnace reductive slag
  • setting time
  • Abstract Several studies indicate that alkali-activated slag cements and
    concretes present high mechanical strength and good performance in
    chemical attack. However waterglass-activated slag mortars and
    concretes show significantly higher shrinkage and shorter setting time
    than ordinary Portland cement.
    This study aims at reducing shrinkage and averting the rapid setting
    by partly replacing blast furnace slag in alkali-activated electric arc
    furnace reductive slag concrete. Also, concrete mix composition
    for alkali-activated electric-arc furnace reductive slag cement concrete
    with compressive strength of 140 kgf/cm2 to 210 kgf/cm2 at the age of
    28 days are developed.
    The dosage of alkaline activator was reduced form 7% to 4% (by
    Na2O) and modulus was reduced from 1.75 to 0.75 when the replacement
    of blast furnace slag was up to 50% of electric-arc furnace reductive slag.
    When the dosage of alkaline activator decrease, the setting time increase
    and longer than ordinary Portland cement. The drying shrinkage was been
    reduced and the compressive strength of the concrete was found to be
    over 210 kgf/cm2 at 28 days.
    Table of Content 第一章 前言1
    1.1研究動機1
    1.2 研究目的2
    1.3 研究內容2
    第二章 文獻回顧4
    2.1 電弧爐煉鋼4
    2.1.1 電弧爐煉鋼簡介4
    2.1.2 還原碴之產量及特性6
    2.2 鹼活化處理技術9
    2.2.1 鹼活化劑之反應機理9
    2.2.2 所使用之活化劑及其反應機理11
    2.3 影響鹼活化成效之各種因子13
    2.3.1 電弧爐還原碴細度對鹼活化成效之影響13
    2.3.2 活化劑濃度對抗壓強度之影響14
    2.3.3 活化劑濃度對砂漿試體收縮之影響16
    2.4 爐石粉取代部份還原碴之影響18
    2.4.1 爐石粉取代還原碴之活化成效18
    2.5鹼活化爐石粉混凝土之特性22
    2.5.1 鹼活化爐石粉混凝土之工作性22
    2.5.2 鹼活化混凝土內過渡區之發展23
    2.5.3 抗硫酸鹽侵蝕26
    2.5.4 鹼質與粒料反應28
    2.5.5 爐石粉水泥試體之色澤變化32
    2.6 鹼活化爐石粉混凝土配比設計34
    第三章 實驗計畫39
    3.1 實驗材料39
    3.2 實驗設備及儀器44
    3.3實驗流程及方法53
    3.3.1 實驗流程53
    3.3.2 實驗方法60
    3.4 鹼活化劑劑量調配64
    第四章 結果與分析66
    4.1 還原碴基本性質分析67
    4.1.1 物理性質67
    4.1.2 化學性質分析70
    4.2 爐石粉最佳取代量與活化劑用量72
    4.2.1 還原碴之品質檢驗72
    4.2.2 爐石粉取代量與活化劑用量75
    4.3 鹼活化漿體之體積穩定性81
    4.4 鹼活化還原碴混凝土配合設計87
    4.4.1 建立鹼活化劑量和砂漿強度之關係87
    4.4.2 鹼活化還原碴混凝土配比89
    4.4.3鹼活化還原碴混凝土性質90
    4.4.4 鹼活化還原碴混凝土成本分析97
    4.5鹼活化還原碴混凝土之耐久性99
    4.5.1 高溫及高濕度下之膨脹量99
    4.5.2 抗硫酸鹽侵蝕試驗100
    4.6 微觀分析102
    第五章 結論與建議108
    5.1結論108
    5.2建議109
    參考文獻110
    Reference 李宜桃,「鹼活化還原碴漿體之收縮及抑制方法研究」,國立中央大學土木工程研究所碩士學位論文(2003)。
    蕭遠智,「鹼活化電弧爐還原碴之水化反應特性」,國立中央大學土木工程研究所碩士學位論文(2002)。
    郭硯華,「以鹼活化技術資源化電弧爐煉鋼還原碴之研究」,國立中央大學土木工程研究所碩士學位論文(2007)。
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    Advisor
  • Wei-hsing Huang(黃偉慶)
  • Files
  • 953202033.pdf
  • approve in 2 years
    Date of Submission 2008-07-17

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