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本文以国道206线杨家店子大桥加固维修工程为实例,分析了在混凝土中添加聚丙烯纤维的性能。分析结果表明,在混凝土中掺加适量的聚丙烯纤维能够有效地改善混凝土的各种性能,从而满足公路旧桥加固中的各种特殊要求。
In this paper, 206 national highway 206 Yang Jiandianzi bridge reinforcement repair project as an example, analysis of the properties of polypropylene fiber added to the concrete. The analysis results show that adding a proper amount of polypropylene fiber to concrete can effectively improve various properties of concrete so as to meet various special requirements of strengthening old bridges on the highway.