基於資源再生利用與環境保護之考量，再生瀝青混凝土的應用乃是鋪面工程發展的趨勢。瀝青為瀝青混凝土組成之要素，因此瀝青性質常影響鋪面成效甚鉅。本研究主要以AC-20、改質Ⅲ型瀝青等二種新鮮瀝青，進行試驗室老化方法模擬瀝青混凝土與瀝青短期及長期老化過程，回收老化瀝青，並將老化瀝青添加新瀝青AC-10拌和成數種再生瀝青，分別進行瀝青物性試驗、韌性試驗與質流儀試驗。
　　
　　由試驗結果得知，針入度隨瀝青老化而降低，軟化點與黏度試驗值隨瀝青老化程度提高；韌性試驗中，抗拉強度隨瀝青老化程度增加而降低；流變參數複合模數G*值，隨溫度上升而下降，並隨老化程度提高；以新鮮瀝青種類比較，改質Ⅲ型瀝青較AC-20在對抗長、短期老化成效較優。另外，老化瀝青的含量對再生瀝青的硬化程度有著顯著的影響，兩種原始瀝青不同的再生瀝青，針入度值均隨著老化瀝青添加比例的增加而有下降之趨勢；老化瀝青添加比例較低之再生瀝青，其黏度值較接近目標黏度，建議長期老化後的改質Ⅲ型瀝青用量應控制在20％以下，AC-20則應控制在30％以下，可得到較理想的結果。再生瀝青具較高韌性值，抗變形能力佳，並符合規範規定之抵抗車轍與控制疲勞裂縫之要求。
　　
　　本研究結果顯示再生改質瀝青多項性質表現均優於傳統AC-20，確實為可使用之黏結材料。

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