桥梁施工中混凝土常见问题及预防措施

On common problems in concrete of bridge construction and prevention measures

对桥梁施工中混凝土拌合物常见的和易性差、外加剂使用不当以及表面损伤病害(蜂窝、麻面、空洞、露筋)的问题进行了原因分析,并提出了防治措施,以提高桥梁的耐久性,延长桥梁的使用寿命。

The paper analyzes reasons for common weak workability of the concrete mixture,the mistakes of additive agents,and surface dama-ges,including the honey comb,pitted surface,void and exposed reinforcing bar during the bridge construction,and points out the prevention measures,so as to improve bridge durability and prolong its life span.