四川建材

为准确评价厂拌热再生沥青混合料拌和和易性，通过自研沥青混合料拌和和易性测试装置及提出的评价指标研究了RAP加热温度对厂拌热再生沥青混合料拌和和易性的影响规律。结果表明，使用提出的沥青混合料拌和和易性评价指标：最低拌和能耗，可准确反映厂拌热再生沥青混合料拌和和易性的变化规律。其中，RAP加热温度对再生沥青混合料拌和和易性影响显著，RAP加热温度越高，再生沥青混合料拌和和易性越好，但随着RAP加热温度超过130℃后，混合料拌和和易性提升的幅度明显变小。

In order to accurately evaluate the mixing workability of hot in-plant recycled asphalt mixture, a self-developed testing device of asphalt mixture mixing workability and proposed evaluation indicator were used to study the influence law of RAP heating temperature on the mixing workability of hot in-plant recycled asphalt mixture.The results show that the lowest mixing energy consumption index proposed in this study can accurately reflect the change law of the mixing workability of hot in-plant recycled asphalt mixture.Among them, the heating temperature of RAP has a significant impact on the mixing and workability of thot in-plant recycled asphalt mixture.The higher the heating temperature of RAP,the better the mixing workability of hot in-plant recycled asphalt mixture.However, the increase in mixing workability of the mixture with the heating temperature of RAP exceeding 130°C is significantly smaller.