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: waniek@ikt.dewww.facebook.com/IKTonlinewww.ikt.de

www.ikt.de