荆州城墙表面古砖风化病害及腐蚀机理研究  

Study on Weathering Diseases and Corrosion Mechanism of Ancient Bricks on the Surface of Jingzhou City Wall

作　　者：范亚东 李振 FAN Yadong;LI Zhen(College of Urban Construction,Yangtze University)

机构地区：[1]长江大学城市建设学院

出　　处：《广东建材》2025年第2期26-29,共4页Guangdong Building Materials

摘　　要：荆州城墙古砖在环境作用下发生严重的风化病害,亟待修复与保护。为了揭示古砖病害及腐蚀机理并为其修复提供建议。利用SEM、XRD、XRF等分析手段对古砖样品进行测试分析。结果表明:古砖风化侵蚀的主要原因为腐蚀性盐类富集在古砖表面和内隙中反复进行溶解-结晶-溶解,古砖承受多方位的破坏应力,最终古砖表面发生盐析或酥粉破坏。同时,在相关研究基础上提出对古砖的修复建议。The ancient bricks of Jingzhou City Wall have suffered serious weathering and damage under environmental conditions,and urgently need to be repaired and protected.In order to reveal the diseases and corrosion mechanisms of ancient bricks and provide suggestions for their restoration,SEM,XRD and XRF were used to test and analyze ancient brick samples.The results indicate that the main cause of weathering and erosion of ancient bricks is the accumulation of corrosive salts on the surface and interior of the bricks,which undergo a repeated process of dissolution-crystallization-dissolution.The ancient bricks were subjected to multiple directions of destructive stress,ultimately resulting in salting out or destruction of plaster disruption on the surface of the bricks.At the same time,recommendations for the restoration of ancient bricks are made on the basis of relevant research.

关 键 词：古砖结构 盐析 酥碱 绿锈 强腐蚀性 

分 类 号：S43[农业科学—农业昆虫与害虫防治]