| 研究生: |
陳泰安 Chen, Tai-An |
|---|---|
| 論文名稱: |
陳化與養護製程對鹼激發玻璃無機膠結材性質之影響 Effects of Aging and Curing Processes on the Property of Alkali-Activated Glass Inorganic Binders |
| 指導教授: |
黃忠信
Huang, Jong-Shin |
| 學位類別: |
博士 Doctor |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2016 |
| 畢業學年度: | 105 |
| 語文別: | 英文 |
| 論文頁數: | 193 |
| 中文關鍵詞: | 玻璃廢棄物 、鹼激發 、無機聚合 、鹼活化液 、陳化 、活化能 |
| 外文關鍵詞: | waste glass, alkali-activation, inorganic polymer, alkali-activator, aging, activation energy |
| 相關次數: | 點閱:207 下載:5 |
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無機聚合物耗能小且擁有優越物理與化學性質,但受限於原料價格昂貴,其仍無法取代波特蘭水泥。而容器玻璃含有高量SiO2 ,此廢棄物具有作為無機聚合膠結材原料之潛能。本研究乃利用鹼激發原理,將鈉石灰容器玻璃應用為無機聚合膠結材之原料,以降低無機聚合膠結材之成本。
試驗結果發現,以高溫陳化方式促進玻璃結構解離,溶出後續聚合反應所需之矽酸鹽,如此,鹼活化液中不必添加矽酸鈉,即可拌製玻璃質無機膠結材,例如鹼當量3%時,經適當陳化程序,其4天抗壓強度可高達136.82 MPa;或以簡易製程,亦不添加矽酸鈉,僅控制養護條件,藉由較高pH值的NaOH溶液,溶出後續聚合反應所需之矽酸鹽,例如鹼當量5%時,經適當養護程序,其抗壓強度可高達109.84 MPa,免除使用高溫陳化製程。且不同顏色容器玻璃所製成鹼激發玻璃無機膠結材,具有近似抗壓強度,選用不同比例顏色玻璃調整所製成無機膠結材之外觀顏色,以達到建築結構外觀所需符合顏色,與水泥顏色相似的試體,其抗壓強度皆可達70 MPa以上,與現今混凝土建築外觀顏色並無太大差異,此新型建材無論強度或外觀上皆能為大眾接受。本論文研究結果發現,養護條件與試體長齡期抗壓強度有關,過高的養護溫度或過長的養護時間,皆不利於製作鹼激發玻璃無機膠結材。
Inorganic polymers consume little energy and have excellent physical and chemical properties; however, they are limited by the high costs of raw materials and thus are still unable to replace Portland cement. Container glass has a high amount of SiO2, and waste container glass has the potential to become the raw material for producing inorganic polymeric binders. This study uses the principle of alkali activation and utilizes soda-lime glass as a raw material for inorganic polymeric binders in order to reduce the costs of their production.
The results showed that the microstructural decomposition of soda-lime glass can be promoted through a high temperature aging process which helps to dissolve the silicates required for subsequent polymerization. Therefore, an alkali activating solution can produce glass-based inorganic polymeric binders without adding sodium silicate. For example, when the alkali-equivalent content is 3%, the four-day compressive strength of glass-based inorganic polymeric binders can reach 136.82 MPa by using appropriate aging process. By changing the curing conditions and using NaOH solution with a relatively high pH value, soda-lime glass can also dissolve to provide the silicates required for later polymerization through a simple process, so alkali activating solution can be used to produce glass-based inorganic polymeric binders without adding sodium silicate. For instance, when the alkali-equivalent content is 5% then after a suitable curing process, the four-day compressive strength of glass-based inorganic polymeric binders can be up to 109.84 MPa. The glass-based polymeric binders made from the container glasses of different colors without using a high temperature aging process have similar compressive strengths. Colored glasses can be mixed in different ratios so that the color of the resulting inorganic polymeric binder can be adjusted. The alkali-activated glass inorganic binders made from amber colored glass are most similar in color to cement, and the binders have a compressive strength of up to 70 MPa. The binders look very similar to the concrete currently used in construction, and thus it is anticipated that this new type of construction material will be accepted by the public because of its strength and appearance. The long term compressive strength of the specimen is correlated with the curing conditions. Excessively high curing temperature or long curing duration are not suitable for producing alkali-activated glass inorganic binders.
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