本研究以台北淤泥、桃園淤泥及桃園污泥作為燒製輕質粒料的原料，進行污淤泥轉製輕質粒料之探討。原料進行基本性質分析後，經由最佳化的方式設計9組粒料配方，再以自行開發之造粒機造粒，並進行粒料的高溫燒結，探討各輕質粒料之性質，最後再取比重<1.3的兩組粒料進行高性能輕質混凝土試驗。結果顯示，在相同的燒製條件下，透過最佳化方式設計之粒料皆有良好的膨脹行為表現。淤污泥產生膨脹的溫度高低與SiO2、Al2O3含量及熔劑總量有關，(SiO2+Al2O3)含量大於79%的組別其T1明顯升高；熔劑總量大於3%的組別其T2明顯降低。在1150~1250℃高溫時，污淤泥輕質粒料顆粒比重在1.12~2.0、吸水率低於6％，同時具有表面瓷化、低吸水率及質輕的特性，以此種輕質粒料製作高流動的高性能輕質混凝土，其新拌單位重皆在1900 kg/m3 以下，28天齡期抗壓強度達到300kgf/cm2、電阻檢測值已超過20kΩ-cm、熱傳導係數小於0.9W/mK。

In this study, sludge from Taipei and Taoyuan and mud from Taoyuan were used as raw material for manufacturing lightweight aggregates. Base on the basic property of raw materials, 9 groups aggregate formula were designed through the optimization design procedure, green particles were granulated by using self-developed granulation machine and were sintered under high-temperature, and then the property of lightweight aggregate (LWA) were analyzed by various technology. Two kinds of lightweight aggregates with density lower than 1.3 g/cm3 were selected to make high-performance lightweight concrete (HPLWC). The results showed that in the same firing conditions, the LWA through the optimal design have a good expansion behavior. Sludge and mud deposition temperature is related to the SiO2 and Al2O3 content and the total flux. As SiO2 + Al2O3 content greater than 79%, the bloating temperature, T1 significantly increased; as flux greater than 3%, the melting temperature, T2, decreased. At 1150~1250℃, the density of LWA particles will be within 1.12 and 2.0 g/cm3 and water absorption be less than 6%, use such LWA to produce LWHPC, the unit weight of fresh concrete is less than 1900 kg/m3, the 28-days compressive strength can be higher than 300kgf/cm2, electrical resistinty is more than 20kΩ-cm, and the thermal conductivity is less than 0.9W/mK .

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