IKT’s Managing Director, Roland W. Waniek, and Scientific Director, Prof. Dr. Bert Bosseler, have attended the “China-Europe Conference on Pipelines and Trenchless Technology” at the end of March 2024, where they presented the latest IKT research results on the subject of pipe liner quality.

The event was organised by Prof. Dr. Jingguo Cao from the Tianjin University of Science and Technology.

 

 

The event brought together more than 700 experts in the metropolis of Jinan, the capital of Shandong province on the south bank of the Yellow River.

Prof Bosseler spoke about “Quality Assessment of CIPP Lining in Sewers” and Roland W. Waniek spoke about “International Trenchless Development Trends”.

 

Bert Bosseler presented the latest IKT research results on the quality assurance of CIPP liners, whilst Roland Waniek highlighted the advantages of trenchless construction and renovation in densely populated regions against the backdrop of economic and climate-related challenges.

The two had further interesting discussions at the Tianjin North China Geological Exploration Bureau, at the Tianjin Municipal Drainage Department and at the China International Petroleum & Petrochemical Technology and Equipment Exhibition in Beijing.

The programme also included a visit to a CIPP liner construction site in Jinan and a tour of a CIPP liner and Spiral Wound Lining manufacturer in Gongjiatun.

And at the end there was also a short detour to the Great Wall of China to the north of Beijing – very impressive!

The Chinese hosts will be making a return visit to the IKT with a delegation in May 2024 to discuss further cooperation on the topic of sewer rehabilitation. Before that, they will visit the IFAT exhibition in Munich.

 

You can find a detailed report from our Chinese hosts about this trip here:

 

Chinese report on the IKT visit to China

 

 

More information about quality assurance for CIPP liners:
Neutral and independent: IKT test centre for CIPP liners

 

CIPP liner quality: What is the essence of two decades of IKT’s research?

Prof. Dr. Bert Bosseler, our Scientific Director, and colleagues identify the key factors that are crucial for the quality of the world’s most popular rehabilitation process for sewer pipes, Cured-in-Place-Pipes (CIPP).

In a peer-reviewed journal paper we have summarized all our findings. It is a comprehensive compilation of many research projects and many thousands of CIPP tests over the years.

We also highlight the challenges that remain and the key research issues that still need to be resolved.

 

Download paper

Read now our findings in this peer-reviewed paper, free for download:

Quality assessment of CIPP lining in sewers:
Crucial knowledge acquired by IKT and research gaps identified in Germany

Authors:
Bert Bosseler, Dieter Homann, Thomas Brüggemann, Iain Naismith, Matteo Rubinato

published in “Tunnelling and Underground Space Technology”
by Elsevier
January 2024

CIPP Test Center

Find out more on how we test CIPP liner in our test center: IKT’s Test Center for CIPP Liner

Contacts

Prof. Dr.-Ing. Bert Bosseler
Scientific Director, IKT
T: +49 209 178060
E-mail: bosseler@ikt.institute

Iain Naismith, Ph.D.
Senior Research Fellow, IKT
T: +44 1491 712707
M: +44 7983 605219
E-mail: naismith@ikt.institute

 

How can you as a sewer network operator be sure that your newly installed CIPP liner is of good quality? How sure can you be that it will actually last the promised 50+ years? How can you know whether you have received the promised quality for your good money? There is a reliable yet inexpensive way to find out.

CIPP liners are made on site under conditions that are difficult to control. Every job site is different and liner quality depends on many factors. For example, the human factor and the environmental conditions play a major role.

CIPP liners are always created in situ on the day of installation. The risk is high that work may be done too quickly and too carelessly on the job site. Therefore, you cannot always be sure you have really received a good quality CIPP installation.

CIPP Quality Risks

You have to ask yourself: Were the curing specifications complied with? Is the wall thickness strong enough to withstand ground water pressure? Was a cheap or an expensive resin used? Is the liner really water tight?

Liners with poor material characteristics may not be stable and sufficiently load-bearing, and leak. Above all, they do not achieve the promised service life. Then you might have spent a lot of money for nothing and have to replace the liner with a new one at an early stage.

In the worst case, the sewer pipe has to be completely replaced with a new one. A very expensive affair.

Certainty through laboratory testing

You can avoid all this by having tested your CIPP by IKT’s lab directly after installation. For you, this is quite simple: You just have to extract a sample from the installed liner and send it to us.

We will determine the most important material parameters and compare them with the expected target specifications. We will also test your sample for water tightness.

Then you will receive an expert test report that can give you peace of mind.

Neutral and independent testing

Our CIPP test center carries out around 4,000 such quality tests every year. And we do so completely neutrally and independently, free from the economic interests of liner manufacturers and rehabilitation companies.

This is because we are a neutral and non-profit research and testing institute supported by more than 150 German municipalities, including Berlin, Munich and Hamburg.

We have been conducting quality tests on CIPP liners for more than 25 years and for which we have a strong reputation.

Contact us for testing

So if you also want to have certainty about the quality of the CIPP installed at your site, contact us and we will make you a quote immediately. We will explain to you how to take the samples and how to send them to us. It is much easier than you think!

Your contact person

Dieter Homann is the longstanding director of the IKT laboratory. He is a widely recognized expert who participates in numerous expert panels in Germany and abroad. He will help you understand the complexities of CIPP quality and interpret test results. Contact him, he will be happy to answer all your questions!

Simply address your questions to:

Dieter Homann
Director of IKT’s Test Centre for CIPP
phone: +49 209 17806-0
email: homann@ikt.institute

More information on our CIPP testing procedures and how to send us your samples:
IKT Test Center for CIPP

See also an overview of our CIPP test results in our annual IKT LinerReport from 2003 until today:
IKT-LinerReport