桥梁下部结构施工中节段预制拼装技术的混凝土无损检测研究  

Nondestructive Testing of Concrete by Segmental Prefabrication in the Construction of Bridge Substructure

作　　者：郑鑫 ZHENG Xin(China Design Testing Technology Co.Ltd.,Nanjing 210014,China)

机构地区：[1]华设检测科技有限公司,南京210014

出　　处：《工程建设与设计》2024年第14期218-220,共3页Construction & Design for Engineering

摘　　要：针对桥梁下部结构施工中混凝土损耗极为严重的问题,提出了一种节段预制拼装技术,旨在解决桥梁下部结构施工过程中混凝土致密度不高以及耐久性弱的问题。论文对节段预制拼装技术的混凝土无损检测结果进行分析,结果表明:采用节段预制拼装技术的28 d龄期的混凝土结构和56 d龄期的混凝土结构的温度、表面透气性、混凝土的电阻率、混凝土含水率均能够达到混凝土无损检测标准。Aiming at the serious problem of concrete loss in the construction of bridge substructure,a segmental prefabrication technology is proposed to solve the problem of low density and weak durability of concrete in the construction of bridge substructure.The results show that the temperature,surface permeability,resistivity and moisture content of the concrete structural with 28 d and the concrete structural with 56 d used the section prefabrication technology can meet the concrete NDT standard.

关 键 词：桥梁 下部结构 节段预制拼装技术 混凝土 无损检测 

分 类 号：TU502[建筑科学—建筑技术科学] TU528