一、腐蚀剥落现象 在地下水位较高和沿海的一些城镇和乡村,常见砖砌墙体的腐蚀、粉化、剥落的现象。这些腐蚀、粉化、剥落的部位多数发生在墙基础以上的勒脚部位。被腐蚀的砖墙面呈松散状态,略微触及即落下砖粉,影响了建筑物的使用年限。有的建筑物交付使用仅仅几年,就被腐蚀粉化得斑痕满目,也影响建筑物的美观。 I. Corrosion Peeling Phenomenon of corrosion, pulverization, and spalling of brick walls is common in some towns and villages with high groundwater levels and along the coast. Most of these corroded, powdered, and exfoliated parts are located on the base of the base of the foot. Corroded brick walls are in a loose state, which touches the bricks slightly, affecting the useful life of the building. Some buildings that have been delivered for only a few years are riddled with corrosive powder and affect the beauty of the building.