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主要论述聚丙烯纤维免振自密实混凝土的研究 ,包括原材料的选择和性能研究。重点介绍该材料在天津市某立交桥维修美化工程中修补加固的应用
Mainly discusses polypropylene fiber vibration-free self-compacting concrete research, including the choice of raw materials and properties. This paper mainly introduces the application of the material in repair and beautification project of an overpass in Tianjin