纤维增强沥青混凝土在寒区桥面铺装中的应用

Applications of Fiber Asphalt Concrete on Deck Pavement in Cold Region

对应用于教来河大桥桥面铺装层的聚酯纤维增强Superpave沥青混凝土进行了大量的试验,阐述了纤维增强混凝土高、低温性能与施工工艺控制要点,并与不掺纤维的改性沥青混合料桥面铺装性能进行了对比分析。结果表明纤维沥青混合料用于寒区桥面铺装能显著提高其疲劳寿命与抗早期病害能力。

In this paper, some tests were done about polyester fiber asphalt concrete which are applied in Jiaolai River＇s deck. Some major points were formulated, including its high and low temperature＇s performance and construction technology. Some comparison was done between no fiber and having fiber asphalt. The result indicated that fibred asphalt mix can improve deck＇s fatigue life and early disease resistance when the mix is applied to bridge＇s pavement in cold region.