预制梁封锚新技术在京台高速改扩建中的应用  

Application of new anchor sealing technique for precast beam in the reconstruction and extension of Beijing-Taipei expressway

作　　者：郭永智 王昊 郭保林 GUO Yongzhi;WANG Hao;GUO Baolin(Shandong Transportation Institute,Shandong Jinan 250031 China;Shandong Hi-speed Co.,Ltd.,Shandong Jinan 250100 China)

机构地区：[1]山东省交通科学研究院,山东济南250031 [2]山东高速股份有限公司,山东济南250100

出　　处：《山东交通科技》2022年第2期10-11,15,共3页

基　　金：山东省交通运输科技计划,项目编号:2018B44。

摘　　要：提出了一种新的公路桥梁封锚专用材料及施工工艺,经验证该材料与梁体混凝土黏结牢固、无离缝,自身无收缩、不开裂、抗盐冻性能好,该新工艺采用支立专用模板、拌合机强制拌和、自流平浇筑等措施。A new kind of special material and the construction technology for anchor sealing of highway bridge girder are put forward.It has been proved that the material has strong bond with concrete of beam body,no seam,no shrinkage,no cracking and high deicer frost resistance.The new technology adopts measures such as supporting special formwork,forced mixing by mixer and self-leveling pouring.

关 键 词：预制梁封锚 抗冻性 施工 

分 类 号：U445.47[建筑科学—桥梁与隧道工程]