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Product range - if required - monitored and certified acc. above standards. Contents such as technical specifications, values, and dimensions are given to the best of our knowledge, however, without any guarantee and liability. If not specified otherwise, dimensions are given in millimetres. Our General Terms and Conditions shall apply.
CTS Anchored + SH CTS Anchored CTS SH
CTS-SH (Geometry and dimensions) Groove design: Profile:
CTS-SH The CTS-SH Seal is a compression profile in combination with a hydrophilic insertion cord. In case of leakage through the compressed seals caused by ring building tolerances exceeding the maximum allowed joint gap sizes the hydrophilic cord will start expanding over time. An additional restoring force will be developed leading to an additional sealing function resulting in a self-healing effect over time. The advantages Highly efficient self-healing performance due to hydrophilic round cords that are completely embedded within the compression carrier profile and in-between both compressed carrier profiles. No loss of restoring force due to missing counter force when the hydrophilic material moves out towards the profile side flanks as often observed on customary co-extruded composite seals with a thin hydrophilic coating on the profile’s top-surface. No premature swelling of the hydrophilic material during outdoor storage of the segments and therefore no protection measures against rain and moisture required. The hydrophilic cord is installed shortly before bringing the segments from the open yard into the tunnel. All CTS-SH seals are supplied as ready corner-vulcanized and project specifically tailor-made gasket frames. The profile geometry and also the procedures used for the project-related water-proofing performance and restoring- force-behavior testing follow the recommendations of recognized institutions such as, e.g.: STUVA (GER), AFTES (F), and BTS (UK). The gasket installation The CTS-SH seals are optionally installed either by “brush- on” or “spray-on” gluing method. The CTS-Teco-Bond- Gluing-System is recommended. The installation of the hydrophilic cord Teco-Swell is carried out shortly before bringing the segments into the tunnel by using a special tool provided by CTS. The tunnel segment installation To obtain a proper seal, care must be taken to insure the gaskets are not damaged during installation. For the insertion of the key stone segment CTS recommends using the CTS-Teco-Lube on the gasket frames. The material The CTS-SH Seal is made of a high quality EPDM com- pound and its physical properties are in line with the specified values found in the STUVA recommendations. In case of special requirements concerning chemical resis- tance when used in extremely contaminated ground CTS offers alternative materials ( e.g. CR/SBR elastomer for better resistance against hydrocarbons found in ground water ). This alternative material can be offered as a reasonable compromise, but always under consideration of lowering the typical and physical properties of an EPDM-compound with regard to aging performance and longivety. The hydrophilic round cord Teco-Swell is made of a swell- able TPE material with good permanently elastic properties.
26 x 10 mm
33 x 10 mm
36 x 11 mm
44 x 12 mm
CTS Standard CTS Standard CTS Standard