IKT – Institute for Underground Infrastructure

IKT Comparative Test
“Repair methods for main sewers”

Posted 23. August 2009

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Many waste-water system operators are unsure of what can be achieved by main sewer repair methods and what quality is attainable. Twelve different techniques from the three groups of methods: “Injection/grouting + injection methods”, “Short-liners” and “Internal sleeves” have been comparatively tested under defined and replicable conditions using the IKT Comparative Test “Repair methods for main sewers”. The principal focus was the testing of the techniques in IKT test rigs…

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IKT Comparative Test
“Sewer lateral liners 2005”

Posted 22. November 2005

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This IKT Comparative Test assesses the suitability and the practical usability of CIPP liners available on the market for sewer laterals. The central focus is on highly practically orientated comparison of the products, in order to be able to provide waste-water system operators with impartial and technically substantiated information on the strengths, weaknesses and potentials/limitations for use of the products tested. The test programme itself has been developed jointly with…

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IKT Comparative Test
“Inspection systems for site drainage networks”

Posted 24. October 2005

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This IKT Comparative Test clarifies how the various inspection systems for site drainage available on the market meet the demands placed on them and reveals specific strengths and weaknesses in each system. All the systems tested were found to be basically suitable for the inspection of site drainage networks.

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IKT Comparative Test
“Repair methods for sewer lateral connections”

Posted 17. August 2004

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Damage to the lateral connections on main sewers is a frequent occurrence. Common types include intruding and detached damaged connecting lines and cracks and/or spalling around the lateral connections. Injection and top-hat section methods for the repair of sewer lateral connections have been tested to the limit in an IKT Comparative Test. The assessment criteria were the system tests performed by IKT in test lengths, the method suppliers’ Quality Assurance…

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IKT Comparative Test “Sewer lateral saddles”

Posted 23. July 2002

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IKT has tested nine commercially available sewer lateral saddles on behalf of fourteen sewer-system operators. In view of the frequency of damage in their own systems, these operators perceive a significant risk for their investments when installing sewer lateral saddles. The underlying concept of the IKT Comparative Test is that of intensive cooperation between research and practice. The IKT Comparative Test “Sewer lateral saddles” has therefore been developed on the…

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