中文摘要：

温拌技术的关键是温拌外加剂。不同的温拌外加剂对沥青混合料的降温效果不同,从而需要经过具体试验来选择合适的温拌外加剂,以达到理想状态。研究4种温拌外加剂对AC-13混合料的降温效果。试验方案：用同种级配及油石比,对不同外加剂的温拌沥青混合料在不同温度下进行马歇尔击实试验,检测试件空隙率变化情况,并对不同外加剂的温拌沥青混合料达相同空隙率时的击实温度进行对比,确定降温效果最为明显的外加剂,并与热拌SBS改性沥青击实试件相对比,确定降温效果。

英文摘要：

The key of warm mixing technique is warm mix additive.Because different warm mix additives have different cooling effect on asphalt mixture,so it requires specific tests to select the appropriate warm mix additive in order to achieve the ideal state.This paper compares the cooling effect of four kinds of warm mix additives on AC-13 mixture.With the same grading and asphalt-aggregate ratio,this study conducts Marshall compaction test of warm mix asphalt mixture with different warm mix additives under different temperatures to detect specimen porosity.By comparing the compaction temperatures when the warm mix asphalt mixture with different additives reach the same porosity,this study determines the additive with the most obvious cooling effect.Finally the cooling effect can be determined when compared with the compacted specimens of hot mix asphalt modified by SBS.