IKT – Institute for Underground Infrastructure

Withstanding the pressure: liners for pressure sewers put to the test

Posted 05. July 2023

0 Comments

Aging pressure sewer pipes, just like gravity sewers, require renovation. But which methods are best suited for the job? What are the pros and cons of each? The latest IKT comparative product test on pressure sewer liners offers valuable insights. Pressure sewers are critical and sensitive elements of urban wastewater infrastructure. Many are ageing so sewer network owners are increasingly having to deal with their rehabilitation and there are different methods…

» Read article...

---

Liquid > Solid > Ready? Comparison of Five Flowable Backfills for Sewer Pipe Trenches

Posted 14. October 2020

0 Comments

We have evaluated with sewer network owners the suitability of “Flowable Backfill” for use sewer trench backfilling in an IKT-Compare evaluation of this technology. Five products were compared and all were found to flow well into 1:1 scale excavation pits in our large-scale test facility – around pipes and manholes shafts and into every corner of the simulated trenches. However, during the subsequent performance tests it became increasingly clear that…

» Read article...

---

IKT Compare: Can Short Liners Repair House Connections?

Posted 31. October 2018

0 Comments

Short liners are often the first choice for repairing local damage in house connections. But, can they deal with seriously damaged pipes? The results of the new IKT-Compare project “Short Liner for House Connections” are now available.

» Read article...

---

Manhole Rehabilitation: Comparative testing of 13 different methods

Posted 14. June 2016

0 Comments

Can wastewater manholes be rehabilitated so that they remain permanently watertight? What are the benefits and the drawbacks of mortar coating, plastic coating and lining. What quality can be expected? This first comparative product test in this field gives you the answers!

» Read article...

---

Comparative assessment of innovative inspection procedures and equipment for site drainage systems

Posted 10. January 2014

0 Comments

This research project involves the development of a test programme to comparatively test and evaluate the inspection procedures and equipment currently available for site drainage systems. Practical experience is to be gathered in pilot deployments in cooperation between the Meyer-Entsorgung disposal company and the City of Osnabrück. In addition, general recommendations for action to provide both the public and system operators with assistance prior to the actual inspection are to…

» Read article...

---

IKT Comparative Test “Odour filters”

Posted 28. May 2010

0 Comments

In the summer months, in particular, odour emissions from sewers cause odour nuisances and thus higher levels of complaints from residents. Sewer-system operators are in general obliged to find a remedy for such problems. Odour filters installed in waste-water manholes are coming into increasing use. In addition, further products which release special active ingredients in the waste-water manhole shaft are also used. The aim of this Comparative Test was that…

» Read article...

---