基于电化学加速锈蚀原理的结构破坏拆除方法  

Method of Structural Destruction and Demolition Based on Electrochemical Accelerated Corrosion Principle

作　　者：胡辉 HU Hui(SCEGC No.3 Construction Engineering Group Company Co.Ltd.,Xi'an 710000,China)

机构地区：[1]陕西建工第三建设集团有限公司,西安710000

出　　处：《工程建设与设计》2024年第2期20-22,共3页Construction & Design for Engineering

摘　　要：由于城市中越来越多的老旧建筑需要被局部或整体拆除,由此出现了大量的噪声污染、空气污染以及安全问题。论文参考了自然环境中结构老化寿命终结的演化机理,通过电化学加速锈蚀技术设计了一种新型结构拆除方法。经试验表明,在8A/m2的电流密度下通电15d,可使混凝土结构强度下降30%~50%、钢筋质量损失10%~20%,以此降低了后续人工拆除的难度。More and more old buildings in cities need to be demolished in part or in whole,which also leads to a lot of noise pollution,air pollution and safety problems.Referring to the evolutionmechanismof the end of structural aging life in natural environment,this paper designs a newmethod of structural demolition by electrochemical accelerated corrosion technology.The test results show that electrifying for 15 days at the current density of 8A/m2 can reduce the strength of concrete structure by 30%~50%and the quality of steel bars by 10%~20%,thus reducing the difficulty of subsequentmanual demolition.

关 键 词：结构拆除 电化学锈蚀 电流密度 

分 类 号：TU746.1[建筑科学—建筑技术科学]