Paper presented by Roland W. Waniek at FiSTT conference on Nov. 22nd, 2013 in Lahti/Finland. Roland is Managing Director of IKT - Institute for Underground Infrastructure, Gelsenkirchen

1. No-Dig Markets in Germany and
Testing of Products
by Roland W. Waniek
Managing Director,
IKT – Institute for Underground Infrastructure

2. IKT – Institute for Underground Infrastructure
Nature
Activities
non-profit,
neutral, independent
Research, Testing,
Consulting
Priorities
Construction, Rehabilitation
and Operation
of Underground Networks
Target Group
Network Operators,
Policy Bodies

3. IKT – Testing Facilities

4. IKT – Large Testing Stand

5. 5 m Überdeckung
IKT – Large Testing Stand

8. Total length of the public Sewer-System
in Germany
km
600.000
562.000
500.000
541.000
400.000
515.000
486.000
300.000
446.000
200.000
100.000
0
1997
2001
2004
Year
2007
2010

9. Age of German Public Sewers
unknown
18%
before 1960
13%
2001 - 2010
14%
1961 - 1980
25%
1981 - 2000
30%

10. Rehabilitation Market
in 2010
Renovation
20%
Repair
36%
Replacement
44%
Total Investment:
ca. 4 bill. EUR per annum

11. IKT does
neutral & independent
Comparative Product Tests

Basis Investment Decisions of
Network Operators

12. IKT- Comparative Product Test, Concept
Laboratory
After Installation
Quality
Qmax
Good operational conditions
During Operation
Bad operational conditions
For Disposal
Qmin
QD
te
Construction
t
s
Operation
t
s
t
s
Time

13. IKT- Comparative Product Test, Concept

14. IKT- Comparative Product Test, Concept
Quality Assurance
System Test
Site Investigation

15. IKT Comparative Product Test
“Repair Methods for Lateral Connections“

16. Repair Methods for Lateral Connections:
Injection Method

17. Repair Methods for Lateral Connections:
Top Hat Liner Method

18. Repair Methods for Lateral Connections:
IKT – Testing Facility

19. Repair Methods for Lateral Connections:
Damages to repair

20. Repair Methods for Lateral Connections:
Infiltration at a Top Hat Liner

21. Repair Methods for Lateral Connections
Effects of High-Pressure Hetting on Top-Hats

22. Repair Methods for Lateral Connections
Injection methods: “Extreme situation“

23. Repair Methods for Lateral Connections

24. IKT-Test “CCTV-Systems for Private Sewer Systems“

25. „Kieler Stäbchen“
„Aaligator“
„Lindauer Schere (mini)“
„Göttinger-Wurm
70/500“
„Göttinger-Wurm
50/300 (mini)“
„Göttinger-Wurm 70/500
mit Dreh-/Schwenkkopf“

26. 1:1 Scale Test
Aggregated Area
Core Area
Test Scenario
T e ilb e r e ic h 1
T e ilb e r e ic h 1
T e ilb e r e ic h 7
T e ilb e r e ic h 8
T e ilb e r e ic h 7
T e ilb e r e ic h 8
T e ilb e r e ic h 5
T e ilb e r e ic h 5
T e ilb e r e ic h 4
T e ilb e r e ic h 4
T e ilb e r e ic h 6
T e ilb e r e ic h 6
T e ilb e r e ic h 3
T e ilb e r e ic h 3
T e ilb e r e ic h 2
T e ilb e r e ic h 2
B o h ru n g
S c h e r b e n b ild u n g
E in r a g e n d e L e itu n g
R is s b ild u n g
S c h e r b e n b ild u n g
W e r k s to ffw e c h s e l
E in r a g e n d e L e itu n g
U n te rb o g e n
R is s b ild u n g
V e rs a tz

27. IKT - Test
“CIPP for Lateral Pipes“

28. IKT-Test “CIPP for Lateral Pipes“
Lateral Pipes: Standard Situation

29. Lateral Pipes: Extreme Situation

31. Samples

32. Results

33. Conclusions
• Market Overview:
Objective Information on Quality
• Potentials for Improvement
• Pressure for Improvement
• Investment Safety
• Product Group Performance

34. IKT does
neutral & independent
Quality-Control Testing of CIPP

Quality Assessment of CIPP-Jobs

35. CIPP: How They are Supposed to Look Like

36. CIPP: What You See Is What You Get?
Is this a good CIPP-Job?

37. CIPP – Quality Assessment
Is this CIPP fully cured?
How is its stability against collapse?
Is it water-tight or porous?
What are its long-term properties?

38. CIPP: Stability Tests
Wall Thickness
Flexural Strength
Three-Point Bending Test
Long-Term Tests

39. CIPP: Samples from Job Sites
Sample Size:
Width: 50 mm
Length: 20 * Wall Thickness
20 * s
50 mm
5 Prüfkörper

40. CIPP: Extracting Samples On-Site
30 cm
20 cm

41. CIPP: Porousity Test

42. CIPP: Water Porousity Test
Water Porousity Test of Samples
 Negative Pressure: 500 mbar
 Duration: 30 min.
 Test Areas: Ø 5 cm in diameter
 Inner Coating is cut through with cross cuttings
 Avoid to cut into the resin (max. cut depth: 0,2 cm)
Tests per Sample: 3

43. CIPP: Porousity Assessment
 Any visible Leakage: Sample is Porous
(Drops, Spume or Moisture)

44. CIPP: Porousity Test

45. CIPP: Annular Gap

46. CIPP: Water Inflow Through Annular Gap

47. www.ikt.de
IKT - Institute for Underground Infrastructure
Exterbruch 1
45886 Gelsenkirchen / Germany
Email: waniek@ikt.de
www.facebook.com/IKTonline
www.ikt.de