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目前,外墙瓷砖饰面存在着一些质量问题,严重影响了建筑物的美观,如不及时修补,还会影响使用寿命。但局部修补时,又有很多的困难:(1)搭设脚手架费人工、费材料;(2)与原饰面同品种的材料不易采购;(3)因粘结砂浆强度高,在清凿时容易振活共它瓷砖。所以,这一问题必须引起重视。一、瓷砖的质量问题瓷砖本身的质量向题主要是脱皮和爆裂。 1.脱皮规范规定瓷砖的吸水率应不大于18％,但一般吸水率均在20％以上,最多的达25％以上。瓷砖吸水后砖坯膨胀,如再受冻,即
At present, there are some quality problems in exterior wall tile finishes, which seriously affect the aesthetics of the buildings. If they are not repaired in time, they will also affect the service life. However, when it comes to local repair, there are many difficulties: (1) The construction of scaffolding requires labor and expense materials; (2) It is difficult to purchase materials of the same kind as the original veneer; (3) Because the strength of bonded mortar is high, the It is easy to shake altogether it tiles. Therefore, this issue must be taken seriously. First, the quality of ceramic tiles The quality of the tile itself is mainly peeling and bursting. 1. The peeling specification stipulates that the water absorption rate of ceramic tile should not exceed 18%, but the general water absorption rate is above 20%, and up to 25%. Tiles expand after water absorption, such as re-frozen, ie