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随着我国城乡建设日新月异的发展,建筑物日趋大型化、复杂化和高层化,外墙所采用的材料五花八门,外墙饰面砖得到广泛使用.但是,由于我省外墙防水工程技术研究滞后,对施工质量亦不够重视,加上我省属台风高发区,雨量充沛,以致造成近年来建筑物外墙渗水现象普遍,严重困扰着用户的使用.在我公司近几年承担的高层建筑工程项目中,采用粘贴外墙砖的较多,故解决外墙饰面砖渗水的质量通病成为我们研究的课题,通过多年的现场施工,我们总结归纳了以下几方面的防水措施:(1)使用水泥砂浆外加剂,提高砂浆和易性及抗渗性.我们在水泥砂浆中加入石灰精(按水泥用量的3‰).由于混合砂浆吸水性大,外墙长期处于湿润状态,水分通过砖墙渗入室内而造成漏
With the rapid development of urban and rural construction in our country, buildings are becoming larger, more complicated and higher-level buildings. The materials used in exterior walls are widely used. Exterior wall facing bricks are widely used. However, due to the lagging research on waterproof engineering technology of the external walls of our province, The construction quality is also not enough attention, coupled with the high rainfall in our province’s typhoon-prone area, resulting in widespread water seepage in the external walls of buildings in recent years, seriously plaguing the use of users. High-rise construction projects undertaken by our company in recent years In the past, the use of plastered exterior wall tiles has become more common. Therefore, solving the problem of the quality of water seepage from external facing tiles has become a problem for us. Through many years of on-site construction, we summarized the following aspects of waterproofing measures: (1) Use of cement mortar Additives to improve the mortar’s workability and impermeability. We add lime to the cement mortar (3 ‰ for cement content). Due to the high water absorption of the mixed mortar, the external walls are in a long-term wet condition, and the water seeps into the room through the brick walls. Cause leakage