公路桥梁钢筋混凝土护栏浇筑二次振捣施工法

Highway Bridges Reinforced Concrete Guardrail Casting Secondary Vibrating Construction Method

通过对河北某特大桥钢筋混凝土护栏浇筑施工采用的二次振捣施工方法进行全程跟踪调查,二次振捣方法施工的钢筋混凝土护栏无任何腐蚀剥落现象发生,耐久性效果明显。混凝土二次振捣施工方法能大幅提高混凝土的抗渗性,提高混凝土的密实性,提高混凝土的耐久性,是一个很好的工法,特别适合高速公路桥梁的护栏、桥面混凝土、路面混凝土等施工。

Based on reinforced concrete parapet pouring construction of a super major bridge in hebei secondary vibrating construction methods for follow-up survey, the secondary vibrating method construction of reinforced concrete guardrail without spalling corrosion phenomenon, the durability of effect is obvious. Secondary vibration of concrete construction method can significantly improve the permeability resistance of concrete, improve the compactness of concrete, improve the durability of concrete, is a good method, is especially suitable for the requirements ofhighwayBridges, bridge concrete, pavement concrete, etc.