EXHIBITIONS


surface waters each year. What makes the situation worse is that the system is already overloaded by heavy rainfall.


  the replacement of old and unusable pipes alone would     wastewater and rainwater systems   to be spent on pipe replacements. Additional pipes will be needed in the booming shale gas industry, and shale gas extraction will  recycling and reuse. It will mean installing pipes that are resistant to chemicals – a need which presents good opportunities for pipe manufacturers and suppliers to support the current radical transformation of the US water sector.





 Faulty connections, cracks, drainage obstructions such as roots and also damage from corrosion have also affected water and sewage   Wastewater and Waste, believes  redevelopment now. About a fifth of all systems are damaged in parts and will need to be redeveloped in the short or    calculated remaining useful life is 


What is striking is that there has been a slight shift towards more repairs in pipe maintenance, while the proportion of replacements and renovations is decreasing.


Material for permanent protection


 replacement of pipes is the


30 IMT March 2016 www.internationalmetaltube.com


choice of suitable materials for the manufacturing process. Until now preference has largely been given to stoneware and concrete, including reinforced concrete – depending on the medium and the throughput. If the medium    cement mortar, as this avoids


direct contact, for instance, with the steel pipe. At the same time, the alkalinity of the mortar ensures active corrosion protection. The trend that can be observed is an increasing preference for plastic pipes which are gradually becoming more widespread in the creation of new networks – even though, according to DWA, their share


  crucial elements in a water or wastewater pipe, apart from the material, are of course its length and its wall thickness.


 Emscher Sewer


 


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