研究生: |
徐瑋良 Wei-Liang Hsu |
---|---|
論文名稱: |
緻密配比設計法應用於鹼激發再生粒料混凝土之性質研究 The Study on the Properties of Alkali Activated Concrete with Recycled Aggregate Designed by Densified Mixture Design Algorithm |
指導教授: |
黃兆龍
Chao-Lung Hwang |
口試委員: |
黃兆龍
Chao-Lung Hwang 林凱隆 Kae-Long Lin 鄭大偉 Ta-Wui Cheng 張大鵬 Ta-Peng Chang |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2020 |
畢業學年度: | 108 |
語文別: | 中文 |
論文頁數: | 117 |
中文關鍵詞: | 緻密配比設計 、再生粗粒料 、再生細粒料 、鹼激發 、鹼當量 、氫氧化鈉莫耳濃度 、矽鈉比 、水固比 |
外文關鍵詞: | Densified Mixture Design Algorithm, recycled coarse aggregate, recycled fine aggregate, alkali activated material, alkali equivalent, sodium hydroxide aqueous solution molar concentration, SiO_2/Na_2O ratio ratio, water-solid ratio |
相關次數: | 點閱:328 下載:0 |
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本研究主要目的為探討緻密配比之最緻密點粒料堆積下,鹼激發黏結料的結果評估。第一部分以緻密堆積方式以再生細粒料填充天然細粒料及以再生粗粒料填充天然粗粒料繪出單位體積與再生粒料含量關係曲線。再生細粒料比例從30%增加至40%單位體積上升0.03%,從40%增加至50%單位體積下降0.74%,因此當再生細粒料為40%皆有最大單位體積,此時細粒料堆積最為緻密;再生粗粒料比例從30%增加至40%單位體積上升0.05%,從40%增加至50%單位體積下降1.1%,因此得知最為緻密之再生粗細粒料比例為40%。試驗結果顯示,再生粗、細粒料為30%及40%皆有較接近的硬固性質,且再生粗、細粒料比例從30%增加至40%抗壓強度試驗結果下降量小於再生粗、細粒料比例從40%增加至50%。第二部分以不同漿體變數(鹼當量、氫氧化鈉莫耳濃度、矽鈉比、水固比)在再生細粒料為40%下對不同再生粗粒料比例探討各性質試驗,並做微觀分析試驗找出漿體與粒料間之介面過渡區(ITZ)。結果說明提高鹼當量、氫氧化鈉莫耳濃度、矽鈉比,將提高抗壓強度、超音波波速、熱傳導係數,提高水固比則得降低性質試驗結果。
The main purpose of this study was to evaluate the results of alkali-activated binders under the densest packing of the densest packing. In the first part, the natural fine granules are filled with recycled fine aggregate by dense packing method, and the natural coarse aggregate are filled with recycled coarse aggregate to plot the relationship between unit volume and recycled aggregate content. The proportion of recycled fines aggregate increased from 30% to 40%, and the unit volume increased by 0.03%, from 40% to 50%, and the volume decreased by 0.74%. Therefore, when the recycled fine aggregate are 40%, the maximum unit volume is obtained. The material accumulation is the most dense; the proportion of recycled coarse aggregate increases from 30% to 40%, and the volume increases by 0.05%, from 40% to 50%, and the unit volume decreases by 1.1%. Therefore, the proportion of the most dense recycled coarse aggregate and recycle fine aggregate pellets is 40%. . The test results show that 30% and 40% of the recycled coarse aggregate and recycled fine aggregate have similar hard-solid properties, and the proportion of recycled coarse and fine aggregates increases from 30% to 40%. The ratio of recycled fine aggregate increased from 40% to 50%. The second part explores the properties of different recycled coarse aggregate under different regenerated coarse aggregates with different slurry variables (base equivalent, sodium hydroxide molar concentration, SiO_2/Na_2O ratio, water-solid ratio) and 40%. Microscopic analysis tests find the interface transition zone (ITZ) between the slurry and the pellet. The results show that increasing the alkali equivalent, sodium hydroxide molar concentration, and sodium strontium ratio will increase the compressive strength, ultrasonic wave velocity, heat transfer coefficient, and improve the water-solid ratio to reduce the property test results.
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