| 研究生: |
胡宏章 Chang, Hu-Hung |
|---|---|
| 論文名稱: |
添加樹脂/木質素之水泥砂乾拌料耐久性之研究 A Study on the Durability of Dry Mixing Cement Mortars Added with Resin/Lignin |
| 指導教授: |
王櫻茂
Wang, In-Maung |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系碩士在職專班 Department of Civil Engineering (on the job class) |
| 論文出版年: | 2003 |
| 畢業學年度: | 91 |
| 語文別: | 中文 |
| 論文頁數: | 93 |
| 中文關鍵詞: | 樹脂 、木質素 、同步輻射 、耐久性 |
| 外文關鍵詞: | Synchrotron Radiation Accelerator, Resin, Lignin, Durability |
| 相關次數: | 點閱:97 下載:5 |
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本研究係利用抗壓、流度、擴散、壓汞、酚酞等試驗結果做巨觀性質與行為之分析,復輔以同步輻射、掃瞄式電子顯微鏡及X光能量散佈儀等進行微觀試驗,以了解強度發展情形與微觀結構,探討添加樹脂/木質素之水泥砂漿與製配相同配比之水泥砂漿,在不同水灰比條件下作比對,對耐久性之影響。
試驗結果顯示:
1. 添加樹脂/木質素的袋裝粉光水泥砂,其流動度優於其他,擴散濃度最低,耐久性最佳。
2. 水灰比愈大,擴散濃度有增加趨勢,抗壓強度相對減低,耐久性愈差。
3. 試驗的水泥砂材料由於粒徑很小,中性化程度相當微小。
This paper is mainly to explore the impact of various water-cement ratios on the durability of cement mortars and cement mortars with lignin additions. To understand the distinctive properties of cement mortars comprehensively, two approaches were adopted in this study. The first approach is applied to determine the macro properties of cement mortars and its implied behaviors through the tests of Compressive Strength, Flow Table, Diffusion, Mercury Intrusion Porosimetry, and Phenolphalein. The second approach is applied to analyze the microstructures of cement mortars and the strength development through the tests of Synchrotron Radiation Accelerator, Scanning Electron Microscope and X-Ray Energy Dispersive Spectrometer.
The results of the investigation are summarized as below:
1. A commercial package of cement mortars with lignin addition gives better flow ability, comparing with those without lignin additions. It also indicates the lowest degree of diffusion, hence, the best in durability.
2. Higher water-cement ratio will induce higher degree of diffusion. As a result, compressive strength is reduced relatively which lead to weaker durability.
3. Carbonation degree is insignificant while cement mortars materials tested in this study are physically small in diameters.
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