瀝青檢驗時程通常繁瑣耗時，為節省成本及維護品質，本研究期望透過改質瀝青型態（Morphology），找出與工程性質之關聯，達到提升改質瀝青工程品質之目的。本研究透過分析高分子材料（SBS）添加之瀝青的微觀型態，探討改質瀝青的工程性質，接著評估改質瀝青微觀特徵，並且加以分類。研究材料包含線型及星型的SBS，以1%～5%的添加量與基底瀝青混拌，以不同養治溫度製成試樣後，透過光學顯微鏡觀察微觀型態，利用影像分析軟體計算出SBS分布面積比例，進而分析型態與工程性質之關係。結果顯示高分子改質瀝青性質受到型態影響，同時，養治溫度對SBS改質瀝青型態影響明顯，SBS溶脹至原來體積之2～8倍；養治溫度180°C下呈現的微觀型態，與離析程度有相當高的關聯性。型態圖說明改質瀝青的微觀型態，建議於不同養治溫度下進行觀察，單一溫度下的微觀型態並不能代表改質瀝青的整體型態。

In order to improve the quality of polymer-modified asphalt (PMA), this study was expected to find out the relationship between the morphology of PMA and engineering properties. In this study, the engineering properties of PMA were investigated by analyzing the morphology of PMA with SBS, and then the morphology of PMA was evaluated and classified. The material in this study contains two kinds of SBS (linear and radial). The samples were prepared by mixing 1% to 5% with the base asphalt. After the samples were prepared at different conditioning temperature, the morphology was observed by optical microscope. Then, Using the image analysis software to calculate the proportion of SBS distribution area, and analyzing the relationship between the morphology and engineering properties. The results showed that the properties of PMA were affected by the morphology. At the same time, the effect of conditioning temperature on SBS PMA was obvious, SBS was also swollen to the original volume of 2 ~ 8 times. Finally, the morphology under the conditioning temperature of 180°C showed a high relevance with storage stability.

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