July 2007 egeplast Werner Strumann GmbH & Co. KG Robert-Bosch-Straße 7 48268 Greven

The new factory Commissioned: January 2001 Size of grounds: 150,000 m² Production facilities: approx. 18,000 m² Extrusion hall: 90 m wide, 150 m long Extrusion lines: 14 Dimensional range: DA 7 – 1200 mm Pipe raw materials: PE and PP Rated capacity/year: 55.000 tonnes

Pipe Installation back then…. and today! Strong growth in non-conventional installation techniques over the past 20 years Quelle: Fiedler, Göttinger AWT 2006 Open Installation only 10% pipe material Civil works up to 90% Up to 50% cost for surface restoration Trenchless by Relining Quelle: Gelsenwasser Quelle: A. Hügging in 3R international (2000) Non-conventional pipelaying saves money – however, requirements towards pipe material are higher!

Development of PE-HD as a Material for Pipes PE100 RC PE 100 3rd Generation Perfomance PE 80 2nd Generation PE 63 1st Generation 1970 1980 1990 2000 Year

Polyethylene : Molecular Structure HDPE: filamentary macromolecule with a few branches Polyethylene molecule crystalline structure branches

Influence on Materials Properties PE-molecule Property short molecules without branches long molecules with branches Structure high stiffness high strength crystalline high ductility high crack resistance high resistance against scratches and notches amorphous crystalline amorphous

Increase of Resistance against Slow Crack Growth SCG by Comonomer Branches without Comonomer with Comonomer

Today: 3rd Generation PE 1. Generation: monomodale - without comonomer 2. Generation: monomodale - with comonomer 3. Generation: bimodale - with comonomer Chain length Content [%] monomodale bimodale Increasing the crack resistance: Comonomer branch in longest macromolecules By bimodal distribution strength and ductility were equally increased

The Right Pipe System for every Application Trench Installation in Sand Bed egelen® Trench Installation without Sand Bed egeplast 90 10® Trenchless Installation/ Renewal egeplast SLM® 2.0

The Right Pipe System for every Application egeplast SLM® 2.0DCT Detection of embedded pipelines and checking the integrity Protecting drinking water in Contaminated Soil egeplast SLA® 2.0 Environmental safety through permanent leakage monitoring egeplast 3L/SLA®

Trench Installation without Sand bed Sand bedding unnecessary thanks to modern materials • Use of excavated soil allows quicker and more cost-effective installation. • In Rural regions modern techniques like ploughing and milling decrease the contracting time • Additional point loads are exert on the pipe during its live time by stones • Pipe system need to be stable against these point loads, so that these do not result in stress-induced cracking Scoring Point load Ploughing Milling Special Quality Control of the slow crack properties guarantees the long lifetime of these pipes !

PE 100 RCplus Resistance to Slow Crack Growth Testing Full Notch Creep-Test FNCT (ISO/DIS 16770) Point Load Test acc. Dr. Hessel Notch-Test (DIN EN ISO 13479) > 5000 h acc. KRV Richtlinie R 14.6.36

Resistance to Crack Correlation between FNCT and Pipe Pressure Test PE 100 RCplus (Resistence to Crack) > 3300 h DVGW GW 323 „Berstlining“ PE 100+ PE 100 PE 80 PE 63 Source: HESSEL Ingenieurtechnik

Materials in Comparison

PE 100 RC in accordance with KRV Standard R 14.6.36 Testing time Notched Pipe Test according to DIN EN ISO 13479: Material Temperature Pressure Time [°C] [bar] [h] PE 100 RC 80 9,2 > 5000 Additionally egeplast PE 100 RCplus: Point Load Test as a type test: > 8760 h at 80°C, Arkopal N-100, s=4,0 N/mm² Testing time FNCT (ISO/DIS 16770 ) each lot: > 3300 h bei 80°C, Arkopal N-100, s=4,0 N/mm² Acc. Dr. Hessel in 3R international 4/2001 und 6/2001

Trench Installation without Sand bed Reducing Costs without forfeiting safety The ideal combination: Modern crack-resistant Materials and intelligent pipe structure egeplast 90 10® A 10% coloured outer layer is isometrically integrated to allow an exact evaluation of the pipe surface pursuant to DVS, DVGW, KRV and EN standards. Max. 10% damaging are permissible. Pressure pipe manufactured from PE 100 RC plus (Resistance to Crack) 90 % of the standard wall thickness PE 100 RC black 10 % of the standard wall thickness PE 100 RC coloured =100 % safety

Signing out the Scratch Depth One Layer Pipe Control of Scratch Depth is impossible! egeplast 90 10® Scratch Depth is Controllable!

Geometry of the pipe wall Trench Installation without Sand Bed 5.740 m DA 315 x 18,7 mm; SDR 17 660 m DA 315 x 28,6 mm; SDR 11 3.060 m DA 250 x 14,8 mm; SDR 17 Geometry of the pipe wall Installation without Sand Bed is possible

Welding of two layer pipe: Standard Butt Welding Electro Fusion Coupler Different layers are welded together, the welding process follows typical standards like DVS 2207, part 1.

Preoperational Cleaning of a new Pipeline Cutting the but weld Cutting Process Preoperational Cleaning of a new Pipeline

Trenchless Installation and Renovation Techniques Pipe is pulled through undefined bore hole (black box) Relining Horizontal Drilling Pipe Bersting

egeplast 90 10® - SLM® 2.0 Pressure pipe manufactured from PE 100 RC (Resistance to Crack) According DVGW standard GW 335 A2 Pressure pipe manufactured from PE 100 RC (Resistance to Crack) according DVGW standard GW 335 A2 Isometrically integrated, 10% coloured outer layer, to allow an exact scratch evaluation Additional extremely robust protective coating made of reinforced polypropylene

Unprotected PE-Pipe vs. Coated Pipe after No-Dig Technology [mm] 1 2 3 Unprotected PE Pipe [mm] 1 egeplast SLM® 2.0 Coextruded Multilayer Pipe e.g. egeplast 9010® No-Dig Technology Scratches penetrate polyethylene pipes 3 times deeper than coating No Damages under the coating

Protective Function Safety Welding Conditions after No-Dig Technologies

Projects: Relining Relining of Cast Iron Pipe 200m SLM® 2.0 280 x 25,4mm, PN 10

Berstlining for renovation of cast iron pipes Projects: Berstlining Berstlining for renovation of cast iron pipes Bore hole for tapping valve Bersting of the cast iron pipe Pulling rod GG-Pipe (Gas)

Projects: Drilling Drilling through Karst rock in Austria SLM® 2.0 OD 180mm SDR 7.4 sewage pipe with an overall length of 516m Drilling length about 400m

Projects Berstlining of a cast iron pipe House connections

Thank you for your attention!