以電弧爐還原碴製成複合無機聚合物之研究

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姓名

林湧昱(Yung-yu Lin) 查詢紙本館藏

畢業系所

土木工程學系

論文名稱

以電弧爐還原碴製成複合無機聚合物之研究
(Composite Geopolymer Produced by Using Electric-arc Furnace Reductive Slag)

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摘要(中)

由於電弧爐還原碴具含有矽、鋁、鈣元素之特性，屬多鈣型鋁矽酸鹽類材料，於鹼性溶液中可溶出矽、鋁、鈣離子，並互相鍵結形成Si-O-Si架狀結構與C-S-H膠體共存之複合無機聚合物。本文以電弧爐煉鋼廠生產爐碴-還原碴製成複合無機聚合物砂漿試體針對物性及化性進行活化效能及微觀分析探討，並以水淬爐石粉取代還原碴用量改善抗壓強度不足、乾縮等問題進行探討。
本文試驗結果顯示，活性效能分析發現還原碴研磨細度越高時，抗壓強度具一最佳細度範圍，且砂漿試體養護溫度越高時抗壓強度隨之增加，而砂漿拌合時間表現上，抗壓強度亦隨拌合時間增加而提升，但強度增幅效果不顯著。以爐石粉部分取代還原碴於抗壓強度而言，隨爐石粉取代量增加則抗壓強度增加，但凝結時間亦隨之降低。
微觀分析中發現以還原碴製成複合無機聚合物砂漿試體於含鹼當量8%為Ca2+轉化分界點；於乾縮試驗以純還原碴而言，以含鹼當量8%為分界點，8%以上乾縮量則均低於8%以下，主要為Ca2+轉換與AlO4鍵結使C-S-H含量降低所導致；以爐石粉取代還原碴而言，乾縮量隨爐石粉取代量增加而減少。

摘要(英)

Electric arc furnace reductive slag contains the characteristics of silicon, aluminum, calcium is a multi-type calcium aluminum silicate materials, Si4+, Al3+, Ca2+ in an alkaline solution can be isolated, and the mutual bond formation of Si-O-Si and CSH gel the coexistence composite geopolymer. In this paper, the electric-arc furnace reductive slag produced composite geopolymer mortar specimens for physical and chemical performance and micro explore analysis, and the use of slag to replace the amount of reductive slag to improve the insufficient strength and shrinkage Analysis and Discussion.
The results showed that the strength analysis found that the higher the fineness of grind of reductive slag, the compressive strength has the best range, and mortar specimens curing temperature to improve the compressive strength increases, and the performance of mortar mixing time, the compressive strength increased with the mixing time increase with, but the strength increase of the result is not significant. Slag to replace reductive slag in terms of compressive strength, the slag replaced by the increase in the compressive strength increase, but the setting time decreases.
Microscopic analysis of reductive slag produced composite geopolymer mortar specimens in 8%(by Na2O) of Ca2+ into the cut-off point; To the purely reductive slag in the drying shrinkage test, 8%(by Na2O) cut-off point, Drying shrinkage of more than 8%(by Na2O) percent less than 8%(by Na2O) below the CSH gel was reduced by Ca2+ with AlO4 reaction.; Slag to replace reductive slag, the drying shrinkage with the slag to replace the amount of increase is reduced.

關鍵字(中)

★ 鹼活化技術
★ 電弧爐還原碴
★ 無機聚合物

關鍵字(英)

★ electric-arc furnace reductive slag
★ geopolymer
★ alkali-activator

論文目次

目錄 I
圖目錄 III
表目錄 V
第一章緒論 1
1.1 研究動機 1
1.2 研究目的 2
1.3 研究方法及內容 3
1.4 名詞定義 4
第二章文獻回顧 5
2.1 電弧爐煉鋼還原碴 5
2.1.1電弧爐煉鋼方式、流程及產量 5
2.1.2 還原碴組成及性質特性 7
2.2 無機聚合物 9
2.2.1 無機聚合物之反應機理 10
2.2.2 無機聚合物之結構及型態 13
2.2.3 無機聚合物之特性及影響 18
2.2.4 無機聚合物之優缺點 25
2.3 鹼活化技術 27
2.3.1鹼活化之反應機理 28
2.3.2 鹼活化技術之優缺點 30
2.3.3鹼活化技術之特性及影響 32
2.4 複合無機聚合物 36
2.4.1 複合無機聚合物之結構特性 38
第三章實驗材料及方法 41
3.1 實驗材料 41
3.2 實驗設備及儀器 46
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 55
3.3.3 實驗配比及計算 60
第四章結果與分析 63
4.1 還原碴基本性質分析 64
4.1.1物理性質 64
4.1.2 化學性質 67
4.2 還原碴品質之基本試驗 72
4.2.1 鹼當量及鹼模數比之影響 72
4.2.2 水膠比之影響 79
4.2.3 鹼活化劑靜置時間之影響 81
4.3 複合無機聚合物之活性成效 84
4.3.1 各類鋁矽酸鹽礦物之活性差異 84
4.3.2 複合無機聚合物養護溫度之影響 86
4.3.3 複合無機聚合物膠結料細度之影響 88
4.3.4 複合無機聚合物拌合時間之影響 94
4.3.5 流度控制下膠結料細度之影響 99
4.4 複合無機聚合物之微觀分析 102
4.4.1 X光繞射分析(XRD) 102
4.4.2 傅立葉轉換紅外線光譜分析(FTIR) 104
4.5 爐石粉取代還原碴製成複合無機聚合物之影響 106
4.6 複合無機聚合物之收縮效應 110
第五章結論與建議 115
5.1 結論 115
5.2 建議 117
參考文獻 118

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指導教授

黃偉慶(Wei-Hsing Huang)

審核日期

2012-7-19

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