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(Table: Material properties for fibre cement) |
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(Table: European Standards for pipes made of fibre cement (as at 10.2008)) |
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(Table: Material properties for vitrified clay) |
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(Table: European standards for vitrified clay pipes (as at 10.2008)) |
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(Image: Examples for jacking pipes made of various materials - Vitrified clay [FI-Steinb]) (Image: Vitrified clay jacking pipes) (Image: Jacking of a vitrified clay pipe in microtunneling ) (Image: Pressure test on a vitrified clay jacking pipe) |
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The steel pipes used in trenchless installation are usually welded constructions and seldom seamless pipes. They are distinguished by high strength, good ductility and good weldability and, in trenchless installation, are used mainly for the installation of pressure piping such as gas, water, pressurized sewers and inverted siphons [Buttc85] [Stein82b] [Rinck79]. They are installed by pulling-in, pushing-in, pressing-in and ramming-in. (Image: Steel … |
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(Table: European standards for the coating of steel pipes (as at 10.2008)) |
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(Image: Steel pipe with PE coating and additional FCM coating [FI-Mannea] - Applying the FCM coating) (Image: Steel pipe with PE coating and additional FCM coating [FI-Mannea] - Completed pipe) (Image: Steel pipe with PE coating to DIN 30670 [FI-Mannea]) (Image: FCM-S steel pipe with MAPEC polyethylene coating, clamping profile and FCM [FI-Mannea] - Pipe cross section) |
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(Table: European standards for the lining of steel pipes (as at 10.2008)) |
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For the internal corrosion protection of steel pipes, use is usually made of a cement mortar lining or coating (CM lining) to DIN 2614 or to EN 10298 and DIN 2880 which will wholly or partly replace DIN 2614. There are two variants:
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Jacking pipes of reinforced concrete with steel have only been on the market for a few years and up to now have only been used in the nominal size DN/ID 1200 for pressurized water pipes. (Image: Reinforced concrete with steel jacking pipe DN/ID 1200 [FI-Gollw] - View) |
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