全球科技與文明的進步雖帶來便利，卻也伴隨著與日俱增的廢棄物。隨著環保意識提升，零廢棄已成為解決廢棄物問題的理想目標。污泥為事業廢棄物之一，目前常見的方式為熱處理，係利用高溫去除污泥中之水分與有機物；然而，若僅利用熱處理，後續仍會衍生大量無法去化之污泥灰渣，且其主要的成分與卜作嵐材料相近，具有作為水泥輔助膠結材料之潛力，將其與水泥混合，不僅可以減少水泥用量，亦可提升廢棄物資源化之可行性。
本研究探討經處理廠前處理之污泥灰渣作為輔助膠結材料之可行性，研究分成兩階段，第一階段為試體成型性評估，探討原料熱處理與水膠比對混合水泥試體成型性之影響；第二階段則以控制變因法，評估原料熱處理之差異（原污泥灰渣、800°C熱處理）、化學助劑添加比（0%、0.05%）、水膠比（0.3、0.35）、分選篩號（#50、#100、#200）以及污泥灰渣取代比（10%、20%、30%）等各項實驗變數，藉由測量混合水泥漿體之凝結時間、抗壓強度與強度活性指數，以尋求符合工程規範且具備最佳資源化效益之實驗參數。
研究結果顯示，經過800°C熱處理之污泥灰渣在水膠比0.35、助劑添加比0.05%、通過#200號篩及取代比為10%下，其養護28天具有最高抗壓強度與強度活性指數；考量研磨耗能與時間成本條件下，改採通過#100號篩，並將取代比提升至20%時，雖因水化產物減少、結構不緻密而使強度降低，但仍達到凝結時間、強度活性指數之規範標準。綜合工程規範標準、研磨耗能與資源化效益之評估，本研究之最佳實驗參數為：污泥灰渣經800°C熱處理、水膠比0.35、助劑添加比0.05%、通過#100號篩及取代比20%。

With industrial development, waste treatment and reuse have become increasingly important. Sludge ash generated by thermal treatment has a chemical composition similar to that of pozzolanic materials, suggesting its potential as a supplementary cementitious material.
The study comprised two stages: specimen formability assessment and parametric testing. The variables included original sludge ash and sludge ash heat-treated at 800°C, admixture dosages of 0 and 0.05%, water-to-binder ratios of 0.30 and 0.35, particle sizes passing No. 50, No. 100, and No. 200 sieves, and replacement ratios of 10%, 20%, and 30%. Setting time, compressive strength, and strength activity index were measured.
The highest 28-day compressive strength and strength activity index were obtained using 800°C-treated sludge ash, a water-to-binder ratio of 0.35, 0.05% admixture, No. 200 sieve, and 10% replacement. Considering grinding energy, processing time, and resource utilization, the optimal parameters were 800°C treatment, a water-to-binder ratio of 0.35, 0.05% admixture, No. 100 sieve, and 20% replacement. This parameter combination still satisfied the relevant requirements for setting time and strength activity index.

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