公路预应力混凝土空心板表面气泡成因及对策  

On reasons for bubbles on surface of prestressed concrete hollow slab on roads and its strategies

作　　者：裘智辉[1] 

机构地区：[1]中国铁道科学研究院铁道建筑研究所,北京100081

出　　处：《山西建筑》2013年第17期142-143,共2页Shanxi Architecture

摘　　要：针对公路桥梁预应力混凝土空心板表面气泡的问题,从结构、施工和混凝土材料三个方面分析了空心板表面气泡的形成原因,并阐述了减少气泡产生的技术措施,在工程应用中针对中板的结构特点,提出采用透水模板布的技术思路,有效解决了中板混凝土表面气泡的问题。According to the bubbles on the surface of prestressed concrete hollow slab on roads, the paper analyzes the reasons for the formation of bubbles on the surface of hollow slab from the structure, the construction and the concrete materials, illustrates the technical measures to re duce bubbles, and points out technical ideas for adopting the controlled permeability formwork liner according the structural features of the middle plate in engineering application, so as to solve the bubbles on the concrete surface.

关 键 词：空心板 气泡 成因 措施 

分 类 号：U416.2[交通运输工程—道路与铁道工程]