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我国过去一直沿用石油沥青油毡做建筑防水,这种工艺除了要消耗大量原纸、热施工和污染环境外,还存在低温脆裂、高温流淌,容易产生起鼓、老化、龟裂、腐烂、渗漏等工程质量问题。因此,屋面漏雨,厕所卫生间漏水,装配式壁板建筑板缝以及地下室渗漏等“四漏”问题,已成为目前建筑工程防水中常见的质量通病。“四漏”的存在给生产带来严重的损失,给人民生活造成很大不便,对建筑物的使用功能和使用寿命产生严重的影响。航空工业部的调查说明,沥青油毡屋面防水层的使用寿命逐年缩短,用户和房管部门对此意见很大。据调查,内蒙古大雁矿务局的住宅楼1975年竣工,到1977年,已发现多处漏雨;
In the past, China has been using petroleum asphalt tar felt as a building waterproofing technology. This process not only consumes a large amount of base paper, thermal construction, and pollutes the environment, but also has low temperature brittleness, high temperature flow, and is prone to drumming, aging, cracking, rot, and leakage. And other engineering quality issues. Therefore, problems such as leaking roofs, leaking toilets, building panel joints, leaking basements, and leaking in the basement have become a common problem in the waterproofing of construction projects. The existence of “four leaks” has brought serious losses to production, caused great inconvenience to the people’s lives, and had a serious impact on the function and service life of buildings. The survey conducted by the Ministry of Aeronautic Industry indicated that the service life of the asphalt tarpaulin roof waterproofing layer has been shortened year by year, and the users and the housing management departments have expressed great opinions. According to the survey, the residential building of the Dayan Mining Bureau in Inner Mongolia was completed in 1975, and by 1977, multiple leaks have been discovered;