框构桥自身抗渗问题分析

Analysis of self impervious problem of framed and braced bridge

针对框构桥抗渗防裂混凝土施工过程中容易出现的问题,分析了其出现的原因,阐述了解决抗渗效果差的防治措施,并通过施工中注意商品混凝土的质量、混凝土的浇筑和养护、配筋率、外加剂的选择,以确保抗渗达到设计要求。

Against to the problem easy to occur in impervious and anti-crack concrete construction of framed and braced bridge,its origin reasons were analyzed,the preventing measures to resolve bad impervious effect were illustrated.By noticing commercial concrete quality in construction,concrete grouting and maintenance,reinforcement ratio,additive selection,therefore guaranteed impervious reach the design requirement.