- 學位論文
廢棄陶瓷粉塵資源回收再利用高強度環保地磚
Recycling and Reuseable Ceramic Waste for Application in High-strength Floor
摘要
本研究探討可回收再利用陶瓷廢棄物應用於環保地磚之骨材，經由廢棄物配方調整、混合、冷壓成形、低溫180℃硬化燒結，製造環保高硬度的硬化磚，並對於磚體進行下列分析：(1)陶瓷廢棄物元素分析；(2)環保地磚抗壓測試、(3)硬化磚耐候性測試、(4)硬化磚吸水率物性試驗及(5)斷面組織分析。 實驗結果顯示，陶瓷廢棄物添加比例越高，固化劑含量越少，強度越弱；當固化劑越多會導致磚體內部結構越不穩定，根據SEM分析表面結構的固化劑批覆於骨材表面，觀察斷裂面結構骨材間互相砥觸，造成橋接形狀消失，所以骨材可承受應力改變或變差，所以適當比例固化劑的添加形成良好的橋接形狀並且擁有接觸點，將有利骨材間結合強度提升，並由本實驗發現可以增加抗壓強度以及數據的穩定性。並由國家標準規範測試目標本研究也通過CNS382一般地磚一級磚與二級磚標準，最後與市售產品交叉比對經濟性分析。
並列摘要
Abstract This study intends to reuse ceramic waste for preparing high-strength green tiles through precursor mixing, cold forming, and low temperature sintering at 180°C. The analyses on the as-prepared tiles involve: (1) elemental analysis, (2) hardness (or wear) test, (3) weatherability (or durability) test, (4) water adsorption test, and (5) cross-sectional structural analysis. Experimental results indicated that the chemical composition acts as an important role in affecting the mechanical performance of the green tiles. High ratio of ceramic to hardness agent would induce weak strength, whereas the low ratio of ceramic to hardness agent would form an unstable interconnection. Thus, an appropriate ratio of the waste to binding agent is necessary to prepare an optimal green tiles with excellent performance, i.e., good stability and high mechanical strength. Accordingly, the green tiles showed a promising potential for commercialization since the tiles meet the basic requirements of CNS 382 1st and 2nd regulations.