低温成型抗车辙功能沥青混合料路用性能研究

发布时间：2018-06-24 02:51

本文选题：道路工程 + 沥青混合料　；参考：《功能材料》2014年20期

【摘要】：我国寒冷地区热拌沥青混合料的施工季节短,为了减少低温条件下压实成型对沥青路面使用性能的不利影响,开展掺加低温施工高性能添加剂的沥青混合料路用性能的研究工作。研究了掺加低温高性能添加剂的沥青混合料的压实成型工艺,通过室内车辙实验、水稳定性实验和力学性能实验分析其路用性能特点。结果表明,掺加PRLT添加剂的沥青混合料能够在相对较低的温度条件下成型,提高了沥青混合料的可压实性,可以延长热拌沥青混合料的施工季节,适用于寒冷地区的沥青路面建设;该添加剂显著提高沥青混合料高温抗车辙性能,并一定程度上改善低温抗裂性能、抗水损害性能和力学性能。
[Abstract]:The construction season of hot mix asphalt mixture in cold region of China is short. In order to reduce the adverse effect of compaction forming on the performance of asphalt pavement under low temperature conditions, Research on pavement performance of asphalt mixture with low temperature construction and high performance additives is carried out. The compaction forming process of asphalt mixture with low temperature and high performance additives was studied. The road performance characteristics were analyzed by indoor rutting test, water stability experiment and mechanical property experiment. The results show that the asphalt mixture with PRLT additive can be formed at relatively low temperature, and the compactness of asphalt mixture can be improved, and the construction season of hot mix asphalt mixture can be prolonged. It is suitable for asphalt pavement construction in cold area, and the additive can improve the rutting resistance of asphalt mixture at high temperature, and improve the cracking resistance at low temperature, water damage resistance and mechanical properties to some extent.
【作者单位】：长安大学特殊地区公路工程教育部重点实验室;
【基金】：国家自然科学基金资助项目(51108038,51108039) 中央高校基本科研业务费专项资助项目(CHD2012ZD016) 陕西省科学技术研究发展计划资助项目(2013KW24,2013KJXX94)
【分类号】：U414

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