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研究生：	林士傑 Lin, SHIH-CHIEH
論文名稱：	矽灰/兩性離子型複合水膠作為混凝土自養護劑的可行性研究 Feasibility study of silica fume/amphoteric hydrogel composite as a concrete self-curing agent
指導教授：	許貫中 Hsu, Kung-Chung
學位類別：	碩士 Master
系所名稱：	化學系 Department of Chemistry
論文出版年：	2020
畢業學年度：	108
語文別：	中文
論文頁數：	82
中文關鍵詞：	兩性離子型、水膠、合成、矽灰、砂漿、吸水率、抗壓強度、内部濕度、乾縮、自體收縮
英文關鍵詞：	silica fume
DOI URL：	http://doi.org/10.6345/NTNU202001115
論文種類：	學術論文
相關次數：	點閱：148 下載：0
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本論文主要目的為製備一種兩性離子型的吸水性水膠，使用丙烯醯胺、disodium 1-(4-(3-((carboxylatomethyl)dimethylammonio) propylamino)-4-oxobut-2-enoate)( 1-（4-（3-（（（羧甲基）二甲基銨）丙基氨基）-4-氧代丁-2-烯酸酯）二鈉）) (CDP)和矽灰為單體，合成 SF/PCA，使用FT-IR作結構鑑定，探討單體比例、起始劑或交聯劑劑量和矽灰含量對於水膠在各種水溶液下吸水率的影響。
將SF/PCA水膠加到混凝土和水泥砂漿中，作為自養護劑時，探討單體比例和矽灰比例含量，對於水泥漿中對於水泥砂漿和混凝土抗壓強度、內部濕度、乾縮量和自體收縮量的影響。
實驗結果顯示， SF/PCA水膠，當AM/CDP= 4, APS= 0.7 mole%, MBA= 0.5 mole%, SF = 10 wt%時，在去離子水中、Pore solution和水泥漿濾液中的最大吸水率分別為480.3 g/g、130.3 g/g、81.3 g/g。
將SF/PCA水膠加入水泥砂漿和混凝土中，當水膠劑量為0.2 wt% 和矽灰含量為10 wt%時，對水泥砂漿和混凝土的抗壓強度和內部濕度增加、乾縮量和自體收縮量減少，有較佳的提升效果。

This thesis prepared a silica fume/amphoteric hydrogel composite SF/PCA as a concrete self-curing agent, is synthesized by acrylamide, disodium 1-(4-(3-((carboxylatomethyl)dimethylammonio) propylamino)-4-oxobut-2-enoate) (CDP) and Silica fume as monomer.FT-IR was used to identify the functional groups of the hydrogel. The effects of monomer ratio, initiator and crosslinker dosage, and silica fume content on the water absorbency of the resulted hydrogel in various aqueous solutions were studied and discussed.
SF/PCA hydrogel was added into mortar and cement. The effects of monomer ratio and silica fume content on the compressive strength, internal humidity, drying shrinkage and autogenous shrinkage in mortars and cements.
The results indicated that the highest water absorbency of all tested SF/PCA hydrogel were 480.3 g/g in water, 130.3 g/g in Pore solution,and 81.3 g/g in Cement slurry filtrate repectively, when SF/PCA = 4, APS = 0.7 mole%, MBA = 0.5 mole%, SF = 10 wt%. SF/PCA hydrogel with 0.2 wt% dosage and 10 wt% silica fume showed better performance in cementitious materials. Namely, this polymer could decrease the drying shrinkage and autogenous shrinkage, and increase the compressive strength and internal humidity in mortars and cements.

謝誌  i
摘要  ii
Abstract  iii
目錄  iv
表目錄  viii
圖目錄  ix

第一章 緒論  1
1-1前言  1
1-2研究目的  4
1-3 研究內容  4

第二章 文獻回顧  5
2-1 水膠簡介  5
2-2 影響水膠膨潤之作用力  5
2-2-1交聯密度  5
2-2-2 親水基的親和力  6
2-2-3 水溶液中的離子強度  6
2-2-4 鹽水溶液的影響  6
2-2-5 水溶液的pH值  7
2-3 水膠的種類  8
2-4 有機/無機複合型水膠簡介  9
2-5 矽灰簡介  9
2-6 波特蘭水泥  11
2-6-1 水泥的水化反應  11
2-6-2 水泥的水化反應過程  12
2-7 混凝土的收縮變形機制  14
2-8 自養護劑的養護機理  14
2-9 水膠作為自養護劑的應用  15

第三章 水膠合成與實驗流程  17
3-1 實驗流程  17
3-2 實驗材料與實驗設備  18
3-2-1藥品清單  18
3-2-2 實驗儀器  21
3-3 實驗方法  22
3-3-1 DAPA之合成  22
3-3-2 CDP之合成  23
3-3-2 PCA之合成  24
3-3-3 SF/PCA之合成  27
3-4 聚合物的結構分析與性質鑑定  28
3-4-1紅外線(IR)光譜鑑定  28
3-4-2 掃描式電子顯微鏡(SEM)之結構鑑定  28
3-4-3 水膠吸水率之測量  28
3-4-4 水膠在鹽水溶液吸水率  28
3-4-5 水膠在拌合水中的吸水率 28
3-4-6 水膠在Pore Solution中的吸水率  29
3-5 添加水膠的水泥砂漿之性質分析  29
3-5-1 水泥砂漿試體之拌製  29
3-5-2 水泥砂漿的流度測試  30
3-5-3 水泥砂漿體內部濕度之測量  30
3-5-4  水泥砂漿試體抗壓強度之測量  31
3-5-5 水泥砂漿乾燥收縮之測量  31
3-5-6水泥砂漿自體收縮之測量  32
3-6水膠添加到混凝土之性質分析  32
3-6-1混凝土試體之拌製  32
3-6-2混凝土試體抗壓強度測試  33
3-6-3混凝土乾燥收縮之測量  33
3-6-4混凝土自體收縮之測量  33

第四章 結果與討論  34
4-1 聚合物結構之測定  34
4-1-1 CDP結構鑑定  35
4-1-2 PCA結構鑑定  35
4-1-3 SF/PCA結構鑑定  36
4-1-4 水膠表面形態鑑定  37
4-2 反應條件對PCA水膠吸水率的影響  40
4-2-1 單體比例對PCA水膠吸水率的影響 40
4-2-2 交聯劑劑量對PCA水膠吸水率的影響  44
4-2-3 起始劑劑量對PCA水膠吸水率的影響  47
4-3 鹽水溶液對PCA水膠吸水率的影響  52
4-3-1 不同陽離子價數對PCA水膠吸水率的影響  52
4-4 矽灰含量對SF/PCA複合水膠吸水率的影響  52
4-4-1 SF/PCA複合水膠在去離子水的吸水率  53
4-4-2 SF/PCA複合水膠在鹽水溶液的吸水率影響  54
4-4-3 SF/PCA複合水膠在孔隙溶液中的吸水率影響  57
4-4-3 SF/PCA複合水膠在水泥漿濾液中的吸水率影響  58
4-5 SF/PCA複合水膠對水泥砂漿性質的影響  60
4-5-1 SF/PCA複合水膠對水泥砂漿內部濕度的影響  60
4-5-3 SF/PCA複合水膠對水泥砂漿抗壓強度的影響  62
4-5-4 SF/PCA複合水膠對水泥砂漿乾縮量影響  63
4-5-5 SF/PCA複合水膠對水泥砂漿自體收縮的影響  64
4-5-6 水泥砂漿之SEM分析表面結構  66
4-6 SF/PCA複合水膠對混凝土性質的影響  69
4-6-1 PCA水膠對混凝土抗壓強度的影響  69
4-6-2 PCA水膠劑量對混凝土抗壓強度的影響  69
4-6-3 SF/PCA複合水膠對混凝土抗壓強度的影響  70
4-6-4 SF/PCA複合水膠對混凝土乾縮量影響  71
4-6-5 SF/PCA複合水膠對混凝土自體收縮的影響  72

第五章 結論  74

參考文獻      76
                                

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