论文部分内容阅读
近年来,随着我国改革开放的不断深入和国家对基础设施建设的加大投入,国内对塑料管道的需求一直保持着年均15%以上的增长速度,尤其是在城市供排水管网建设方面,塑料管道发挥着越来越重要的作用。与传统的铸铁管道相比,塑料管道容重轻,使用寿命长,一般来说塑料管道的使用寿命在50年以上,基本达到了与建筑同等的使用寿命。
In recent years, with the deepening of China’s reform and opening up and the country’s increasing investment in infrastructure construction, the domestic demand for plastic pipe has maintained an average annual growth rate of more than 15%, especially in urban water supply and drainage network construction Plastic pipes play an increasingly important role. Compared with the traditional cast iron pipe, the plastic pipe has the advantages of light weight and long service life. Generally speaking, the service life of the plastic pipe is over 50 years, basically reaching the same service life as the building.