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本文依托高寒阴湿地区G213线二级公路维修改造工程,首次采用了基于普通沥青混合料拌和工艺及高分子聚合物改性剂的新型沥青混合料改性技术。通过对粉粒状橡塑复合型沥青混合料改性剂MaR作用机理、路用性能及其适用性的综合分析表明,该技术不仅适合高寒阴湿地区自然气候特点及施工环境,而且能够大幅提高沥青混合料抗车辙能力,同时兼顾了低温及水损坏能力,路用性能显著、使用便捷、经济可行,为高寒阴湿地区改性沥青混合料的应用及二级公路重载交通沥青路面车辙防治技术探索了一条新的解决途径,具有重要现实意义和推广价值。
This article relies on the G213 line of secondary highways in the humid and humid areas maintenance and renovation project, for the first time using a new asphalt mixture modification technology based on ordinary asphalt mixing process and polymer modifier. Through the analysis of the mechanism of MaR, the road performance and its applicability, the results show that this technology is not only suitable for the natural climatic characteristics and construction environment in alpine wet and humid areas, but also can greatly improve the asphalt The anti-rutting ability of the mixture, taking into account the low temperature and water damage capacity, road performance is significant, easy to use, economical and feasible, for the application of modified asphalt mixture in alpine wet areas and secondary road heavy traffic asphalt pavement rut control technology Explore a new way to solve, with important practical significance and promotion value.