The paper illustrates the role of the polyester fiber added into the asphalt concrete,analyzes its influence on the concrete performance, and points out it can improve the wholeness,stability,safety,and durability of the roadbed by researching its application effect on the project.%阐述了聚酯纤维添加在沥青混凝土中的作用，分析了聚酯纤维对混凝土的性能影响作用，通过研究聚酯纤维混凝土在实践工程中的应用效果，指出其可提高路面的整体性、稳定性、安全性、耐久性，应用前景广阔。
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