E - Fixed Constructions – 03 – F
Patent
E - Fixed Constructions
03
F
E03F 3/06 (2006.01) F16L 55/162 (2006.01) F16L 55/165 (2006.01) F16L 55/18 (2006.01)
Patent
CA 2133997
The invention relates to a system and process for relining channel pipe sections with several hose-like inliners (2, 3 7). The internal hose-like inliner (2) of thermoplastic material has on its outside, e.g. a plurality of protuberances (4) as spacers for an external inliner (3); The inliners (2, 3, 7) are constructed in one piece and consist entirely or partly of HDPE and/or VLDPE. They are extremely flexible. The E modulus is preferably 30 to 900 N/mm2, the relative rigidity, i.c. the ration between the E modulus and the nominal diameter, is preferably 0.2 to 2.5 N/mm3. The invention proposes that first a preliner (3) and then the externally internal inliner (2) fitted with protuberances (4) be drawn into the channel (1) to be repaired. quicksetting mortar (6) (sealant) is inserted into the annular chamber (5) between the preliner (3) and the inliner (2) defined by the protuberances (4) and allowed to set. In a preferred embodiment, a three-skinned system with an additional external inliner (7) is used, whereby the inside of the external inliner (7) or the outside of the central inliner (3) has short protuberances (8), so that an annular space (9) is formed to be used as an inspection chamber to permit inspection and subsequent repair.
Huls Troisdorf Aktiengesellschaft
Lukis Gmbh
Robic
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