针对曲线预应力孔道的特点，介绍水泥浆配合比试验和灌浆施工的质量保证措施。
In accordance with the characteristics of curved prestressed duct, the mixing ratio test of cement paste and quality assurance measurement of duct grouting construction are introduced.
无锡金城大桥主跨上部结构为预应力混凝土连续箱梁，纵、横向预应力孔道压浆采用真空辅助压浆工艺。介绍该真空辅助压浆的施工工艺。
The superstructure of the main spans of Jincheng Bridge in Wuxi is a prestressed concrete continuous box girder with its longitudinal and transverse prestressing ducts grouted by vacuum method.
在后张有粘结预应力砼孔道灌浆的施工中，良好性能的水泥浆体是保证灌浆质量的最基本、最重要的因素。
In the constructing of duct grouting for post-tensioning bonded prestressed concrete, the suitable cement paste is the most essential and important factor to guarantee grouting quality.
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