No-Dig Markets in Germany and Testing of Products
by Roland W. WaniekManaging Director,
IKT – Institute for Underground Infrastructure
IKT – Institute for Underground Infrastructure
Target GroupNetwork Operators,
Policy Bodies
ActivitiesResearch, Testing,
Consulting
Naturenon-profit,
neutral, independent
PrioritiesConstruction, Rehabilitation
and Operationof Underground Networks
IKT – Testing Facilities
IKT – Large Testing Stand
5 m
Übe
rdec
kung
IKT – Large Testing Stand
446.000
486.000
515.000
541.000
562.000
0
100.000
200.000
300.000
400.000
500.000
600.000
km
1997 2001 2004 2007 2010Year
Total length of the public Sewer-System in Germany
Age of German Public Sewers
unknown18%
2001 - 201014%
1981 - 200030%
1961 - 198025%
before 196013%
Rehabilitation Market in 2010
Renovation20%
Replacement44%
Repair36%
Total Investment:ca. 4 bill. EUR per annum
IKT does neutral & independentComparative Product Tests
Basis Investment Decisions of Network Operators
IKT- Comparative Product Test, Concept
Construction Operation
Good operational conditions
Bad operational conditions
Time
Qua
lity
te ts
ts
ts
After Installation
During Operation
Laboratory
For Disposal
Qmax
QD
Qmin
IKT- Comparative Product Test, Concept
Quality Assurance
System Test
Site Investigation
IKT- Comparative Product Test, Concept
IKT Comparative Product Test “Repair Methods for Lateral Connections“
Repair Methods for Lateral Connections:Injection Method
Repair Methods for Lateral Connections:Top Hat Liner Method
Repair Methods for Lateral Connections:IKT – Testing Facility
Repair Methods for Lateral Connections:Damages to repair
Repair Methods for Lateral Connections:Infiltration at a Top Hat Liner
Effects of High-Pressure Hetting on Top-Hats
Repair Methods for Lateral Connections
Injection methods: “Extreme situation“
Repair Methods for Lateral Connections
Repair Methods for Lateral Connections
IKT-Test “CCTV-Systems for Private Sewer Systems“
„Aaligator“„Kieler Stäbchen“
„Lindauer Schere (mini)“
„Göttinger-Wurm 70/500“
„Göttinger-Wurm 70/500 mit Dreh-/Schwenkkopf“
„Göttinger-Wurm50/300 (mini)“
1:1 Scale Test
Teilbere ich 1
Teilbere ich 7
Teilbere ich 8
Teilbere ich 4
Teilbere ich 6
Teilbere ich 2
Teilbere ich 3
Teilbere ich 5
E inragende Leitung R issb ildung S cherbenbildung W erks to ffwechse l
Core AreaTest Scenario
Aggregated Area
Teilbereich 5
Teilbereich 1
Teilbere ich 7
Teilbere ich 8
Teilbere ich 4
Teilbere ich 6
Teilbereich 2
Teilbereich 3
S cherbe nb ildungB o hrung
W e rksto ffw echse l
E inragende Le itungU n te rbogen V ersa tz
R i s s b i l d u n g
IKT - Test “CIPP for Lateral Pipes“
IKT-Test “CIPP for Lateral Pipes“
Lateral Pipes: Standard Situation
Lateral Pipes: Extreme Situation
Samples
Results
• Market Overview:Objective Information on Quality
• Potentials for Improvement
• Pressure for Improvement
• Investment Safety
• Product Group Performance
Conclusions
IKT does neutral & independentQuality-Control Testing of CIPP
Quality Assessment of CIPP-Jobs
CIPP: How They are Supposed to Look Like
Is this a good CIPP-Job?
CIPP: What You See Is What You Get?
Is this CIPP fully cured?
How is its stability against collapse?
Is it water-tight or porous?
What are its long-term properties?
CIPP – Quality Assessment
Wall Thickness
Flexural Strength
Three-Point Bending Test
CIPP: Stability Tests
Long-Term Tests
CIPP: Samples from Job Sites
Sample Size:
Width: 50 mm
Length: 20 * Wall Thickness
50 mm
20 * s
5 Prüfkörper
20 cm
30 cm
CIPP: Extracting Samples On-Site
CIPP: Porousity Test
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
CIPP: Porousity Assessment
Any visible Leakage: Sample is Porous (Drops, Spume or Moisture)
CIPP: Porousity Test
CIPP: Annular Gap
CIPP: Water Inflow Through Annular Gap
IKT - Institute for Underground InfrastructureExterbruch 145886 Gelsenkirchen / GermanyEmail: [email protected]/IKTonlinewww.ikt.de
www.ikt.de